Thematische Bibliographien / Recyclage direct / Zeitschriftenartikel
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Zeitschriftenartikel zum Thema „Recyclage direct“

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Veröffentlicht am 7. Dezember 2024

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1

Kurz, Leonard, Simeon Forster, Ralf Wörner und Frederik Reichert. „Environmental Impacts of Specific Recyclates in European Battery Regulatory-Compliant Lithium-Ion Cell Manufacturing“. Sustainability 15, Nr. 1 (21.12.2022): 103. http://dx.doi.org/10.3390/su15010103.

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Since environmental benefits and supply chain resilience are commonly assumed for circular economy strategies, this study tests this hypothesis in the context of lithium-ion battery recycling and cell manufacturing. Therefore, the use of recyclates from different cathode active materials and from different recycling routes, namely hydrometallurgy and direct recycling, in a subsequent cell production is modelled with the recyclate quotas prescribed by the amended European Battery Regulation and analysed using life cycle assessment methodology. This study concludes that both, negative and positive environmental impacts can be achieved by the usage of recyclates, depended on the cell technology and the recycling process chosen. Newly constructed lithium iron phosphate (LFP) cells using a share of 11.3% of recyclates, which are obtained from LFP cells by a hydrometallurgical process, achieve a deterioration in the ecology by 7.5% for the global warming potential (GWP) compared to LFP cells without any recyclate share at all. For the same recyclate quota scenario, hydrometallurgical recyclates from lithium nickel manganese cobalt oxide cells (NMC), on the other hand, achieve savings in GWP of up to 1.2%. Recyclates from direct recycling achieve savings in GWP for LPF and NMC of a maximum of 6.3% and 12.3%, by using a recyclate share of 20%. It can be seen that circular economy can raise large savings potentials ecologically, but can also have a contrary effect if not properly applied.
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2

Nana, Bernard, Nukunu Komlan Guillaume Attaglo, Sid-Noma Anne-Marie Kinda, Samuel Ouoba und Antoine Béré. „Détermination des facteurs d’émission de GES à travers l’ACV dans les unités d’enfouissement, de compostage et de recyclage du CTVD de Ouagadougou“. Journal de Physique de la SOAPHYS 4, Nr. 1 (20.01.2024): CJKA05–1—CJKA05–7. http://dx.doi.org/10.46411/jpsoaphys.2024.cjk.005.

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This study is a contribution to the quantification of greenhouse gas emissions in the waste sector in developing countries, especially through the determination of specific emission factors. The purpose is to determine the greenhouse gas emission factors of the various waste treatment units at the waste treatment and recovery centre in Ouagadougou (Burkina Faso) using the Life Cycle Analysis method. The emission factors were evaluated and then reduced to an equivalent CO2 emission per tonne of waste. The results show that landfill has the highest emission factors, with values ranging from 751.19 to 1,818.6 kg CO2 eq/tonne of waste for direct emissions, depending on whether or not sequestered carbon is taken into account, and from 7.24 to 1.31 kg CO2 eq/tonne for indirect emissions. Composting and plastic recovery units have negative EFs over their entire life cycle (-69.69 and -1736.65 Kg CO2 eq/tonne), thus contributing to net greenhouse gas savings. This study is the first of its kind to provide data that can be used for national accounting of greenhouse gas emissions in the waste sector
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3

Brosius, Roald, und Jack C. Q. Fletcher. „Direct measurement of recycle ratios in internal recycle laboratory reactors“. Chemical Engineering Journal 161, Nr. 1-2 (Juli 2010): 196–203. http://dx.doi.org/10.1016/j.cej.2010.04.014.

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4

Rung, Christian, Frank Welle, Anita Gruner, Arielle Springer, Zacharias Steinmetz und Katherine Munoz. „Identification and Evaluation of (Non-)Intentionally Added Substances in Post-Consumer Recyclates and Their Toxicological Classification“. Recycling 8, Nr. 1 (09.02.2023): 24. http://dx.doi.org/10.3390/recycling8010024.

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According to the European circular economy strategy, all plastic packaging placed on the market by 2030 has to be recyclable. However, for recycled plastics in direct contact with food, there are still major safety concerns because (non-)intentionally added substances can potentially migrate from recycled polymers into foodstuffs. Therefore, the European Food Safety Authority (EFSA) has derived very low migration limits (e.g., 0.1 µg/L for recycled polyethylene terephthalate (PET) and 0.06 µg/L for recycled high-density polyethylene (HDPE)) for recycled polymers. Thus, the use of recyclates from post-consumer waste materials in direct food contact is currently only possible for PET. A first step in assessing potential health hazards is, therefore, the identification and toxicological classification of detected substances. Within this study, samples of post-consumer recyclates from different packaging-relevant recycling materials (HDPE, LDPE, PE, PP, PET, and PS) were analyzed. The detected substances were identified and examined with a focus on their abundance, toxicity (Cramer classification), polarity (log P values), chemical diversity, and origin (post-consumer substances vs. virgin base polymer substances). It was demonstrated that polyolefins contain more substances classified as toxic than PET, potentially due to their higher diffusivity. In addition, despite its low diffusivity compared to polyolefins, a high number of substances was found in PS. Further, post-consumer substances were found to be significantly more toxicologically concerning than virgin base polymer substances. Additionally, a correlation between high log P values and a high Cramer classification was found. It was concluded that PET is currently the only polymer that complies with EFSA’s requirements for a circular economy. However, better-structured collection systems and cleaning processes, as well as more analytical methods that enable a highly sensitive detection and identification of substances, might offer the possibility of implementing other polymers into recycling processes in the future.
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Brun, Catherine. „À l’envers et l’endroit de mai 1968 : les théâtres de Gatti et de Vinaver“. Études françaises 54, Nr. 1 (16.01.2018): 97–115. http://dx.doi.org/10.7202/1042868ar.

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À partir de l’examen de deux entreprises théâtrales en prise directe avec les bouleversements de Mai, celles des dramaturges français Armand Gatti et Michel Vinaver en 1968-1969, est examinée la manière dont les événements de 1968 et le théâtre tel qu’il peut (ou ne peut pas) se faire à ce moment, non seulement infléchissent la trajectoire des oeuvres, mais obligent à situer les pièces créées et l’acte de création même face au système tel qu’il ne cesse de renaître de ses cendres. Tandis que l’un (Gatti), interdit de représentation au Théâtre National Populaire, s’éloigne toujours davantage des lieux où le théâtre institué se fait et promeut de nouvelles modalités d’écriture (une « écriture avec » des hommes et des femmes réels, un théâtre portatif, en quête de formulations inédites), l’autre (Vinaver) y fait retour. Opérant la jonction entre ses activités professionnelles à la direction d’une entreprise multinationale et ses activités créatrices, il renonce à dissocier la libération (physiologique, psychique, politique, économique) du recyclage et prétend opposer aux spectres de l’absorption généralisée un objet dramatique insoluble. Ce sont ainsi les contradictions de Mai 68 qui sont révélées, en même temps que celles des créateurs : quelle(s) place(s) pour le pouvoir ? pour la création ? quelle efficace ? quels recyclages annoncés ? quelles réponses esthétiques (possibles, durables) aux menaces de récupération ?
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Xu, Guoqiang, Tijs Lammens, Qiang Liu, Xicheng Wang, Linlin Dong, Aldo Caiazzo, Nadim Ashraf, Jing Guan und Xindong Mu. „Direct self-condensation of bio-alcohols in the aqueous phase“. Green Chem. 16, Nr. 8 (2014): 3971–77. http://dx.doi.org/10.1039/c4gc00510d.

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7

Wu, Pengcheng, Zhenwei Wang, Xinhua Yao, Jianzhong Fu und Yong He. „Recyclable conductive nanoclay for direct in situ printing flexible electronics“. Materials Horizons 8, Nr. 7 (2021): 2006–17. http://dx.doi.org/10.1039/d0mh02065f.

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8

Miura, Tsuyoshi, Kie Imai, Mariko Ina, Norihiro Tada, Nobuyuki Imai und Akichika Itoh. „Direct Asymmetric Aldol Reaction with Recyclable Fluorous Organocatalyst“. Organic Letters 12, Nr. 7 (02.04.2010): 1620–23. http://dx.doi.org/10.1021/ol1003719.

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9

Ji, Xiao-Ming, Liang Wei, Fan Chen und Ri-Yuan Tang. „Direct trifluoromethylation of imidazoheterocycles in a recyclable medium at room temperature“. RSC Advances 5, Nr. 38 (2015): 29766–73. http://dx.doi.org/10.1039/c5ra02888d.

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Regioselective C–H trifluoromethylation of imidazoheterocycles with Langlois' reagent in a recyclable mixed medium of 1-butyl-3-methylimidazoliumtetrafluoroborate ([Bmim]BF4) and water at room temperature has been developed.
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Kumar, Dinesh, Soo Min Kim und Amjad Ali. „One step synthesis of fatty acid diethanolamides and methyl esters from triglycerides using sodium doped calcium hydroxide as a nanocrystalline heterogeneous catalyst“. New Journal of Chemistry 39, Nr. 9 (2015): 7097–104. http://dx.doi.org/10.1039/c5nj00388a.

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11

Shahrom, Mohamad Syahmi, und Ahmad Razlan Yusoff. „Review of Aluminum Chip Machining Using Direct Recycling Process“. Advanced Materials Research 903 (Februar 2014): 157–62. http://dx.doi.org/10.4028/www.scientific.net/amr.903.157.

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This paper reviews the chain of aluminum Direct Recycling process. Direct Recycling is one of intelligent process to recycle the aluminum waste. The current method for recycle waste aluminum, was affect on the environmental issues. This paper focus on the aluminum waste from machining process, also called chips produced from turning and milling process. From chip collected, next compaction process are compressed to the certain amount pressure for consolidating the materials. Lastly to produce a new material, the process is extrusion process. The most important issue to get a quality of a product is, how to control the pressure during both of process. During this process also available in hot and cold condition. From review, it was that cold compaction process more popular implemented compared to hot compaction. Then almost researchers applied hot extrusion it is because to cover sintering process.
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12

Hourlier, F., A. Massé, P. Jaouen, A. Lakel, C. Gérente, C. Faur und P. Le Cloirec. „Membrane process treatment for greywater recycling: investigations on direct tubular nanofiltration“. Water Science and Technology 62, Nr. 7 (01.10.2010): 1544–50. http://dx.doi.org/10.2166/wst.2010.435.

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On-site greywater recycling and reuse is one of the main ways to reduce potable water requirement in urban areas. Direct membrane filtration is a promising technology to recycle greywater on-site. This study aimed at selecting a tubular nanofiltration (NF) membrane and its operating conditions in order to treat and reuse greywater in buildings. To do so, a synthetic greywater (SGW) was reconstituted in order to conduct experiments on a reproducible effluent. Then, three PCI NF membranes (AFC30, AFC40 and AFC80) having distinct molecular weight cut-offs were tested to recycle this SGW with a constant concentration at 25°C at two different transmembrane pressures (20 and 35 bar). The best results were obtained with AFC80 at 35 bar: the flux was close to 50 L m−2 h−1, retentions of 95% for chemical oxygen demand and anionic surfactants were observed, and no Enterococcus were detected in the permeate. The performances of AFC80 were also evaluated on a real greywater: fluxes and retentions were similar to those observed on SGW. These results demonstrate the effectiveness of direct nanofiltration to recycle and reuse greywater.
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13

Coeck, Robin, und Dirk E. De Vos. „One-pot reductive amination of carboxylic acids: a sustainable method for primary amine synthesis“. Green Chemistry 22, Nr. 15 (2020): 5105–14. http://dx.doi.org/10.1039/d0gc01441a.

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14

Akkus, Buket, Baris Kiskan und Yusuf Yagci. „Combining polybenzoxazines and polybutadienes via simultaneous inverse and direct vulcanization for flexible and recyclable thermosets by polysulfide dynamic bonding“. Polymer Chemistry 10, Nr. 42 (2019): 5743–50. http://dx.doi.org/10.1039/c9py01056d.

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15

Wong, Chin Min, D. Barney Walker, Alexander H. Soeriyadi, J. Justin Gooding und Barbara A. Messerle. „A versatile method for the preparation of carbon–rhodium hybrid catalysts on graphene and carbon black“. Chemical Science 7, Nr. 3 (2016): 1996–2004. http://dx.doi.org/10.1039/c5sc03787e.

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16

Miura, Tsuyoshi, Kie Imai, Mariko Ina, Norihiro Tada, Nobuyuki Imai und Akichika Itoh. „ChemInform Abstract: Direct Asymmetric Aldol Reaction with Recyclable Fluorous Organocatalyst.“ ChemInform 41, Nr. 33 (24.07.2010): no. http://dx.doi.org/10.1002/chin.201033068.

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17

Yang, Weisen, Li Wei, Feiyan Yi und Mingzhong Cai. „Magnetic nanoparticle-supported phosphine gold(i) complex: a highly efficient and recyclable catalyst for the direct reductive amination of aldehydes and ketones“. Catalysis Science & Technology 6, Nr. 12 (2016): 4554–64. http://dx.doi.org/10.1039/c5cy02159f.

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18

He, Lei, Chenfeng Liang, Yani Ouyang, Lin Li, Yirui Guo, Pengfei Zhang und Wanmei Li. „α-Functionalization of ketones promoted by sunlight and heterogeneous catalysis in the aqueous phase“. Organic & Biomolecular Chemistry 20, Nr. 4 (2022): 790–95. http://dx.doi.org/10.1039/d1ob02249k.

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19

Li, Wen Qian, Ning Liu, Hai Yan Fan und Zhi Chao Liu. „Recycle Economy Assessment of Industrial Parks Based on MFA“. Applied Mechanics and Materials 174-177 (Mai 2012): 3547–51. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.3547.

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This article took Industrial Park of Recycle Economy in Tongling as the subject, and assessed its current recycle economy development. In the same time, the symbiotic web among ‘Water-Steam-Energy’ in the park was established in this article, and the redesigned industrial park was reassessed according to its consumptions of material and energy. The result shows that the ‘Water-Steam-Energy’ symbiotic web can remarkably promote the recycle economy development, with the reduction of direct input, the accretion of resource productivity and the promotion of resource recycle utilization.
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Lv, Guangqiang, Hongliang Wang, Yongxing Yang, Tiansheng Deng, Chengmeng Chen, Yulei Zhu und Xianglin Hou. „Direct synthesis of 2,5-diformylfuran from fructose with graphene oxide as a bifunctional and metal-free catalyst“. Green Chemistry 18, Nr. 8 (2016): 2302–7. http://dx.doi.org/10.1039/c5gc02794b.

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21

Nguyen, Chung K., Nguyen B. Nguyen, Oanh N. Chu, Ha V. Dang, Tung T. Nguyen und Nam T. S. Phan. „A direct strategy to synthesize hybrid benzothiazole–carbamate moieties via O-acylation of phenols under metal–organic framework catalysis“. Reaction Chemistry & Engineering 2, Nr. 5 (2017): 669–78. http://dx.doi.org/10.1039/c7re00067g.

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22

Moriel, P., und A. B. García. „Carbon-supported iron–ionic liquid: an efficient and recyclable catalyst for benzylation of 1,3-dicarbonyl compounds with alcohols“. Green Chem. 16, Nr. 9 (2014): 4306–11. http://dx.doi.org/10.1039/c4gc00755g.

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Combining chemical strategies: a robust, heterogeneous and recyclable catalytic system: iron–ionic liquid/carbon material as solid Lewis acid for the direct benzylation of 1,3-dicarbonyl compounds with alcohols.
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Moosavi, Razieh, Abbas Afkhami und Tayyebeh Madrakian. „A simple cyanide sensing probe based on Ag/Fe3O4nanoparticles“. RSC Advances 5, Nr. 21 (2015): 15886–91. http://dx.doi.org/10.1039/c4ra14806a.

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24

Chen, Zheng. „Low-Cost and Sustainable Direct Recycling of Battery Materials“. ECS Meeting Abstracts MA2022-01, Nr. 5 (07.07.2022): 602. http://dx.doi.org/10.1149/ma2022-015602mtgabs.

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The development of next-generation energy storage devices and systems for electric vehicles (EVs) relies on materials with significantly improved performance and lower cost. The increasing amount of lithium-ion battery (LIBs) consumption will result in the resource shortage and price increase of lithium and precious transition metals (Co, Ni etc.) that are critical for making high-performance LIBs. Also, future batteries that mainly use low-cost materials (Na, Fe, Mn) will have limited economic benefits to recycle even though the wastes generated from disposal of used batteries can cause severe environment pollution. In this context, design of low-cost and energy-efficient recycling and regeneration process for spent batteries is attracting growing interest. From a reversible chemistry point of view, this talk will focus on a potential strategy to directly recycle and regenerate spent LIBs using a “non-destructive” approach, which will lead to new electrode materials that can show the same level of performance as the native materials. We will show successful recycling of various battery materials, including cathode (LiMO2, LiMn2O4, and LiFePO4) and anode (graphite) using the direct regeneration approach. Such a strategy combines fundamental understanding and process optimization for remanufacturing of energy materials. Therefore, it can potentially offer a sustainable solution for future energy storage.
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Liu, Hsin-Kuan, Tai-Hsing Tsao, Chia-Her Lin und Vítězslav Zima. „Direct-mixingassembly of a magnesium coordination complex as recyclable water adsorbent“,. CrystEngComm 12, Nr. 4 (2010): 1044–47. http://dx.doi.org/10.1039/b915987h.

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26

Ferré, Meritxell, Xavier Cattoën, Michel Wong Chi Man und Roser Pleixats. „Recyclable Silica-Supported Proline Sulphonamide Organocatalysts for Asymmetric Direct Aldol Reaction.“ ChemistrySelect 1, Nr. 21 (16.12.2016): 6741–48. http://dx.doi.org/10.1002/slct.201601859.

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27

Sharifvaghefi, Seyyedmajid, und Ying Zheng. „Development of a Magnetically Recyclable Molybdenum Disulfide Catalyst for Direct Hydrodesulfurization“. ChemCatChem 7, Nr. 20 (09.09.2015): 3397–403. http://dx.doi.org/10.1002/cctc.201500517.

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28

Shang, Sensen, Bo Chen, Lianyue Wang, Wen Dai, Yi Zhang und Shuang Gao. „High-performance recyclable V–N–C catalysts for the direct hydroxylation of benzene to phenol using molecular oxygen“. RSC Advances 5, Nr. 40 (2015): 31965–71. http://dx.doi.org/10.1039/c5ra04836b.

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High-performance recyclable V–N–C catalysts for the direct hydroxylation of benzene to phenol using molecular oxygen were prepared. N-dopants in the carbon material contributed to overcome the leaching of reactive species.
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Sobhani, Sara, Hadis Hosseini Moghadam, Seyed Ruhollah Derakhshan und José Miguel Sansano. „Tandem imine formation via auto-hydrogen transfer from alcohols to nitro compounds catalyzed by a nanomagnetically recyclable copper catalyst under solvent-free conditions“. RSC Advances 11, Nr. 31 (2021): 19121–27. http://dx.doi.org/10.1039/d1ra02347k.

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A direct imination reaction was developed by tandem reaction of alcohols and nitro compounds in the presence of Cu-isatin Schiff base-γ-Fe2O3 as a nanomagnetically recyclable catalyst.
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Nguyen, Chung K., Hoang H. Vu, Ha V. Dang, Ngon N. Nguyen, Nhan T. H. Le und Nam T. S. Phan. „Superparamagnetic nanoparticles as a recyclable catalyst: a new access to phenol esters via cross dehydrogenative coupling reactions“. RSC Advances 7, Nr. 88 (2017): 55756–66. http://dx.doi.org/10.1039/c7ra11706j.

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CuFe2O4 superparamagnetic nanoparticles were utilized as a recyclable heterogeneous catalyst for the direct synthesis of chemical structures containing both phenol ester and benzothiazole moieties via cross dehydrogenative coupling reactions.
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Yuan, Tao, Fei Chen und Guo-ping Lu. „Direct synthesis of alkynylphosphonates from alkynes and phosphite esters catalyzed by Cu/Cu2O nanoparticles supported on Nb2O5“. New Journal of Chemistry 42, Nr. 16 (2018): 13957–62. http://dx.doi.org/10.1039/c8nj03206h.

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A new, recyclable and efficient copper catalyst for cross-couplings of alkynes and phosphite esters has been disclosed, in which the synergistic effects of Nb2O5 on the catalyst are found owing to its strong Lewis acid sites.
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Abramczyk, Norbert, Sebastian Drewing, Katarzyna Panasiuk und Daria Żuk. „Application of Statistical Methods to Accurately Assess the Effect of Gamma Aluminum Oxide Nanopowder on the Hardness of Composite Materials with Polyester–Glass Recyclate“. Materials 15, Nr. 17 (29.08.2022): 5957. http://dx.doi.org/10.3390/ma15175957.

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Polymer composites are materials that are used in many industries. Their wide application has a direct impact on the amount of post-production and post-consumer waste. The global problem with recycling, especially of fiber-reinforced polymeric materials, has prompted research into methods of their use. Previous research on composite materials with polyester–glass recyclate showed a decrease in mechanical properties. The construction material should have the highest mechanical properties. Based on the literature, it was found that the use of nanoadditives may have a positive effect on the parameters of the materials. The use of gamma aluminum nanopowder, in a small amount can significantly increase the mechanical properties of composites with polyester–glass recyclate, and thus can affect the application of these materials to structural elements. The article is devoted to the research on the hardness of composite materials with polyester–glass recyclate and gamma aluminum nanopowder. The main goal is to investigate the possibility of using a nanoadditive as a material, increasing the mechanical properties of composites with polyester–glass recyclate, so as to create a recycled material with the highest possible strength parameters. Hardness tests were performed using the Barcol method. For each composite material, 30 measurements were made in order to subject the results to a statistical analysis. Using parametric statistical tests it was shown that the obtained hardness values at the assumed level of statistical significance pv = 0.05 for comparisons for the samples of the reference material (B0) do not differ by chance, while for the comparisons in the configurations of the reference material (B0) with the modified materials, (R10, A2, R10A2) they do not differ by accident. Studies have shown that the addition of 2% gamma aluminum nanopowder slightly lowers the hardness of a pure polyester–glass composite, but the same additive allows the hardness of composite materials to be increased with the addition of glass recyclate. This is of particular importance for the development of the optimal composition of polyester–glass composites with the addition of recyclate, which will have good strength properties and at the same time enable the reuse of composite waste.
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Mahmoudzadeh, Mahdi. „Charging-for-Recycling Business Model and Consumer Adoption of Recyclable Electronics“. Highlights of Sustainability 2, Nr. 4 (16.11.2023): 283–302. http://dx.doi.org/10.54175/hsustain2040019.

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High costs of recycling operations have kept recycling rates low for many consumer electronics. Meanwhile, increasing the adoption of more recyclable electronics among consumers remains a challenge. Motivated by Best Buy’s decision to charge consumers a flat fee to accept their used TVs/monitors for recycling, we study how charging for recycling would influence consumer adoption of recyclable electronics. Through experimental studies, and building on relevant behavioral insights (nudging and the theory of planned behavior), we compare the charging for recycling scenario with free recycling and recycling tax as current baselines. We find that, compared to the baselines, charging for recycling increases the adoption of recyclable electronics as long as consumers are not in emergency purchase situations. Our results suggest a potential alternative to unsuccessful direct green marketing and cast doubt on prohibiting retailers from charging for recycling.
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Anbardan, Soheil Zamani, Javad Mokhtari, Ahmad Yari und Abolfazl Hassani Bozcheloei. „Direct synthesis of amides and imines by dehydrogenative homo or cross-coupling of amines and alcohols catalyzed by Cu-MOF“. RSC Advances 11, Nr. 34 (2021): 20788–93. http://dx.doi.org/10.1039/d1ra03142b.

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Oxidative dehydrogenative homo or cross-coupling of amines with alcohols to imines and amides was achieved with high to moderate yields at room temperature using Cu-MOF as an efficient and recyclable heterogeneous catalyst.
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Xu, Wei, und Zhao Ming Liu. „Research of Green Design Technology Based on Recycle-Oriented“. Advanced Materials Research 694-697 (Mai 2013): 3279–82. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.3279.

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This paper research the recycle-oriented green design with full consideration given to product recyclability during the actual process of product design. It places emphasis on the design strategy, design method and design procedure in recycle-oriented green design. It holds that reutilization rate of waste products will be significantly increased, and the direct or indirect pollution to the environment during the disuse process will be reduced or even totally eliminated, if consideration is given to recycle and reuse during the design process and if a research is made on the priority sequence in design, the optimization of design strategy, and the economical efficiency of part recycling.
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Monge-Marcet, Amàlia, Xavier Cattoën, Diego A. Alonso, Carmen Nájera, Michel Wong Chi Man und Roser Pleixats. „Recyclable silica-supported prolinamide organocatalysts for direct asymmetric Aldol reaction in water“. Green Chemistry 14, Nr. 6 (2012): 1601. http://dx.doi.org/10.1039/c2gc35227c.

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Miura, Tsuyoshi, Kie Imai, Hikaru Kasuga, Mariko Ina, Norihiro Tada, Nobuyuki Imai und Akichika Itoh. „Direct asymmetric aldol reactions in brine with recyclable fluorous β-aminosulfonamide organocatalysts“. Tetrahedron 67, Nr. 34 (August 2011): 6340–46. http://dx.doi.org/10.1016/j.tet.2011.06.004.

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38

Zhou, Yao, Bin Dang, Haoming Wang, Jiping Liu, Qi Li, Jun Hu und Jinliang He. „Polypropylene-based ternary nanocomposites for recyclable high-voltage direct-current cable insulation“. Composites Science and Technology 165 (September 2018): 168–74. http://dx.doi.org/10.1016/j.compscitech.2018.06.022.

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Kimura, Akihiro, Haruka Hayama, Jun-ya Hasegawa, Hassan Nageh, Yue Wang, Naofumi Naga, Mayumi Nishida und Tamaki Nakano. „Recyclable and efficient polyurethane-Ir catalysts for direct borylation of aromatic compounds“. Polymer Chemistry 8, Nr. 47 (2017): 7406–15. http://dx.doi.org/10.1039/c7py01509g.

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Ou, Yang, und Ning Jiao. „Recyclable copper catalyzed nitrogenation of biphenyl halides: a direct approach to carbazoles“. Chemical Communications 49, Nr. 33 (2013): 3473. http://dx.doi.org/10.1039/c3cc41443d.

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41

Bergthorson, J. M., S. Goroshin, M. J. Soo, P. Julien, J. Palecka, D. L. Frost und D. J. Jarvis. „Direct combustion of recyclable metal fuels for zero-carbon heat and power“. Applied Energy 160 (Dezember 2015): 368–82. http://dx.doi.org/10.1016/j.apenergy.2015.09.037.

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42

Jian, Lei, Hai-Yu He, Jin Huang, Qian-Hui Wu, Mao-Lin Yuan, Hai-Yan Fu, Xue-Li Zheng, Hua Chen und Rui-Xiang Li. „Combination of RuCl3·xH2O with PEG – a simple and recyclable catalytic system for direct arylation of heteroarenes via C–H bond activation“. RSC Advances 7, Nr. 38 (2017): 23515–22. http://dx.doi.org/10.1039/c7ra02638b.

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A simple and recyclable catalytic system for direct arylation of heteroarenes via C–H bond activation was developed with a relatively inexpensive RuCl3·xH2O as a catalyst and PEG-400 as a green medium without any additive or ligand.
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43

Zhang, Zhe, Feng Wang, Min Wang, Shutao Xu, Haijun Chen, Chaofeng Zhang und Jie Xu. „tert-Butyl hydroperoxide (TBHP)-mediated oxidative self-coupling of amines to imines over a α-MnO2 catalyst“. Green Chem. 16, Nr. 5 (2014): 2523–27. http://dx.doi.org/10.1039/c3gc42312c.

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A methodology for the direct synthesis of imines from amines via a facile α-MnO2 catalyzed-procedure at room temperature with TBHP as an oxidant was described. The catalysis is suitability for 13 aromatic and aliphatic amines, and it is heterogeneous, recyclable and reusable.
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Franz, Roland, und Frank Welle. „Recycling of Post-Consumer Packaging Materials into New Food Packaging Applications—Critical Review of the European Approach and Future Perspectives“. Sustainability 14, Nr. 2 (12.01.2022): 824. http://dx.doi.org/10.3390/su14020824.

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The European strategy for plastics, as part of the EU’s circular economy action plan, should support the reduction in plastic waste. One key element in this action plan is the improvement of the economics and quality of recycled plastics. In addition, an important goal is that by 2030, all plastics packaging placed on the EU market must either be reusable or can be recycled in a cost-effective manner. This means that, at the end, a closed-loop recycling of food packaging materials should be established. However, the use of recyclates must not result in less severe preventive consumer protection of food packaging materials. This may lead to a conservative evaluation of authorities on post-consumer recyclates in food packaging applications. On the other hand, over-conservatism might over-protect the consumer and generate insurmountable barriers to the application of post-consumer recyclates for food packaging and, hence, counteract the targets of circular economy. The objective of this review is to provide an insight into the evaluation of post-consumer recyclates applied in direct contact to food. Safety assessment criteria as developed by the European Food Safety Authority EFSA will be presented, explained, and critically discussed.
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Shi, Yang, Gen Chen und Zheng Chen. „Effective regeneration of LiCoO2 from spent lithium-ion batteries: a direct approach towards high-performance active particles“. Green Chemistry 20, Nr. 4 (2018): 851–62. http://dx.doi.org/10.1039/c7gc02831h.

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A green, simple and energy-efficient strategy that combines hydrothermal treatment and short thermal annealing has been developed to recycle and regenerate faded lithium ion battery cathode materials with high electrochemical performance.
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Martins, Renata Siviero, und Carlúcia Maria Silva. „CATADORES DE RECICLÁVEIS RECICLAM PROCESSOS ORGANIZATIVOS, (RE)SIGNIFICAM O TRABALHO E CONSTROEM UMA NOVA HISTÓRIA“. InterEspaço: Revista de Geografia e Interdisciplinaridade 4, Nr. 13 (23.04.2018): 152. http://dx.doi.org/10.18764/2446-6549.v4n13p152-168.

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RECYCLABLE COLLECTORS RECYCLE ORGANIZATIONAL PROCESSES, REVALUE THE LABOR AND THEY BUILD A NEW STORYRECOLECTORES DE DESECHOS RECICLABLES RECICLAN PROCESOS ORGANIZATIVOS, RE-DIGNIFICAN EL TRABAJO Y CONSTRUYEN UNA NUEVA HISTORIAA Economia Popular Solidária recobre uma realidade marcada pela heterogeneidade e diversidade. Nessas iniciativas populares subsiste uma tensão fundamental entre o possível e o desejável e carregam consigo a dupla tarefa de superar os limites colocados pela ordem econômica vigente e avançar na construção de novos parâmetros de organização e articulação. O presente trabalho analisa a experiência de catadores de recicláveis do Projeto Novo Ciclo. Além de uma breve introdução e as considerações finais, o artigo apresenta percepções acerca do conceito de Economia Popular Solidária e discute a participação dos catadores de recicláveis na gestão dos resíduos sólidos. Algumas percepções e reflexões sobre a experiência de catadores de recicláveis do Projeto Novo Ciclo, subsidiam o confronto teórico-prático, ou seja, o conceito de economia popular solidária e a experiência desses trabalhadores da reciclagem. A metodologia utilizada consistiu na observação direta e observação participante, além da presença e intervenções nos eventos realizados. Os resultados, ainda parciais, apontam que as atividades realizadas possibilitaram a implantação e fortalecimento de programas de coleta seletiva solidária em municípios da região sul e sudoeste de Minas Gerais. Apontam também o aprimoramento da formação de catadores e de técnicos gestores públicos municipais da Região, bem como ações voltadas para a educação ambiental e mobilização social. Ações e intervenções que resultaram na criação da rede de comercialização de material reciclável denominada Rede Sul Sudoeste MG.Palavras-chave: Economia Popular Solidária; Catadores de Recicláveis; Projeto Novo Ciclo; Participação e Cidadania.ABSTRACT The Popular Solidarity Economy reveals a reality marked by heterogeneity and diversity. In these popular initiatives there is a fundamental tension between the possible and the desirable and it carries with the double task of overcoming the limits established by the current economic order and moving forward in the construction of new parameters of organization and articulation. This paper analyzes the experience of recyclable waste collectors of the New Cycle Project. In addition to a brief introduction and the final considerations, the article presents the perceptions about the concept of Popular Solidarity Economy and discusses the participation of recyclable waste collectors in the management of solid waste. Some perceptions and reflections about the experience of recyclable waste collectors of the New Cycle Project, favor the theoretical-practical confrontation, that is, the concept of popular solidarity economy and the experience of these recycling workers. The methodology used consisted of the direct observation and participant observation, besides of the presence and interventions in the events held. The partial results indicate that the carried out activities allowed the implementation and strengthening of selective and solidarity collection programs in municipalities of the south and southwestern region of Minas Gerais. It was also possible to improve the training of collectors and municipal public management technicians in the Region, with actions aimed at environmental education and social mobilization. The actions and interventions led to the creation of a network of commercialization of recyclable materials denominated South Southwest MG Network.Keywords: Popular Solidarity Economy; Recyclable Waste Collectors; New Cycle Project; Participation and Citizenship.RESUMENLa Economía Popular Solidaria revela una realidad marcada por la heterogeneidad y diversidad. En esas iniciativas populares subsiste una tensión fundamental entre lo posible y lo deseable y carga consigo la doble tarea de superar los límites establecidos por el orden económico actual y el de avanzar en la construcción de nuevos parámetros de organización y articulación. El presente trabajo analiza la experiencia de los recolectores de desechos reciclables del Proyecto Nuevo Ciclo. Además de una breve introducción y las consideraciones finales, el artículo presenta las percepciones acerca del concepto de Economía Solidaria y se discute acerca de la participación de los recolectores de desechos reciclables en la gestión de los residuos sólidos. Algunas percepciones y reflexiones sobre la experiencia de recolectores de desechos reciclables del Proyecto Nuevo Ciclo, favorecen la confrontación teórico-práctica, o sea, el concepto de economía popular solidaria y la experiencia de esos trabajadores del reciclaje. La metodología utilizada consistió en la observación directa y observación participante, además de la presencia e intervenciones en los eventos realizados. Los resultados parciales, señalan que las actividades realizadas posibilitaron la implementación y fortalecimiento de programas de colecta selectiva y solidaria en municipios de la región sur y suroeste de Minas Gerais. Se logró también mejorar la formación de recolectores y de técnicos gestores públicos de la Región, con acciones dirigidas a la educación ambiental y la movilización social. Las acciones e intervenciones condujeron a la creación de una red de comercialización de materiales reciclables denominada Red Sur Suroeste MG.Palabras clave: Economía Popular Solidaria; Recolectores de Desechos Reciclables; Proyecto Nuevo Ciclo; Participación y Ciudadanía.
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Wagh, Kishor V., und Bhalchandra M. Bhanage. „Greener approach for the synthesis of substituted alkenes by direct coupling of alcohols with styrenes using recyclable Bronsted acidic [NMP]+HSO4− ionic liquid“. RSC Adv. 4, Nr. 43 (2014): 22763–67. http://dx.doi.org/10.1039/c4ra01324g.

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A green protocol for the synthesis of substituted alkenes from alcohols and styrenes using recyclable [NMP]+HSO4− ionic liquid catalyst with higher atom efficiency has been developed.
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Yeh, Chewei, Yan-Ru Sun, Shing-Jong Huang, Yeun-Min Tsai und Soofin Cheng. „Alternating chiral selectivity of aldol reactions under the confined space of mesoporous silica“. Chemical Communications 51, Nr. 96 (2015): 17116–19. http://dx.doi.org/10.1039/c5cc07255g.

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The chiral selectivities were altered and high diastereo- and enantio-selectivities of the products were obtained in water medium without adding acid co-catalysts when a primary–tertiary diamine catalyst was immobilized on mesoporous SBA-15 to form a recyclable catalyst for the direct asymmetric aldol reaction of cyclohexanone with p-nitrobenzaldehyde.
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Yong, Fui-Fong, und Yong-Chua Teo. „Recyclable Siloxy Serine Organocatalyst for the Direct Asymmetric Mannich Reactions in Ionic Liquids“. Synthetic Communications 41, Nr. 9 (05.04.2011): 1293–300. http://dx.doi.org/10.1080/00397911.2010.481750.

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50

Xi, Zuwei, Haiping Wang, Yu Sun, Ning Zhou, Guoying Cao und Meng Li. „Direct epoxidation of olefins catalyzed by heteropolyoxometalates with molecular oxygen and recyclable reductant“. Journal of Molecular Catalysis A: Chemical 168, Nr. 1-2 (März 2001): 299–301. http://dx.doi.org/10.1016/s1381-1169(00)00189-8.

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