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Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 749-758 doi: 10.1007/s11705-022-2261-0

Abstract: Here, we describe a selective recovery process that can achieve economically efficient recovery and anacceptable lithium leaching yield.Adjusting the acid concentration and amount of oxidant enables selective recovery of lithium ions.Iron is retained in the leaching residue as iron phosphate, which is easy to recycle.of lithium and iron are comprehensively explored, and the mechanism of selective leaching is clarified

Keywords： lithium iron phosphate powder     stoichiometric number     selective leaching     lithium recovery    

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Electrochemistry during efficient copper recovery from complex electronic waste using ammonia based solutions

Zhi Sun, Hongbin Cao, Prakash Venkatesan, Wei Jin, Yanping Xiao, Jilt Sietsma, Yongxiang Yang

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 308-316 doi: 10.1007/s11705-016-1587-x

Abstract: Leaching selectivity during metal recovery from complex electronic waste using a hydrochemical processIt was recently improved by using ammonia-based leaching process, specifically for electronic waste enrichedelectrodeposition as the subsequent approach to effectively recover copper from the solutions after selectiveleaching of the electronic waste and focuses on recognising the electrochemical features of copper recoveryhave shown that electrochemical recovery of copper from ammonia-based solution under the conditions of selective

Keywords： copper recovery     electronic waste     end-of-life products     selective leaching     electrodeposition    

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Characteristics of the stabilized/solidified municipal solid wastes incineration fly ash and the leaching

Yan SHAO,Haobo HOU,Guangxing WANG,Sha WAN,Min ZHOU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 192-200 doi: 10.1007/s11783-014-0719-0

Abstract: mineralogical characteristics and the distributions of metals in matrices, were tested by toxic characteristic leachingContinuous acid extraction was utilized to extract metal ions and characterize their leaching behavior

Keywords： municipal solid waste incineration (MSWI) fly ash     blast furnace slag     leaching behavior     Cr     Pb    

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Assessment of leaching behavior and human bioaccessibility of rare earth elements in typical hospital

Chunfeng Wang, Guanfei Chen, Yanchen Zhu, Dan Yao, Wanfeng Wang, Lianjun Wang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0946-2

Abstract: Leaching behavior and gastrointestinal bioaccessibility of rare earth elements (REEs) from hospital wasteIn the same ash sample, the leaching concentrations of individual REEs determined by the Toxicity CharacteristicLeaching Procedure (TCLP) were higher than those detected by the European standard protocol (EN-typetest), thereby suggesting that the low pH value of leaching solution was an important factor influencing

Keywords： Assessment     Rare earth elements     Leaching behavior     Bioaccessibility     Hospital waste    

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Investigation of Cu leaching from municipal solid waste incinerator bottom ash with a comprehensive approach

Jun YAO, Wenbing LI, Fangfang XIA, Jing WANG, Chengran FANG, Dongsheng SHEN

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 340-348 doi: 10.1007/s11708-010-0131-9

Abstract: This study used a comprehensive approach to characterize the leaching behavior of copper (Cu) from theThe batch titration procedure was used to determine the acid neutralizing capacity and Cu leaching asThe Cu leaching pattern was not only affected by dissolved organic carbon, it was also limited by itsThese findings provide an important insight into predicting the leaching behavior of Cu from the MSWI

Keywords： MSWI bottom ash     Cu leaching     batch titration procedure     SEP    

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The influence of curing conditions on the mechanical properties and leaching of inorganic polymers made

Remus I. Iacobescu, Valérie Cappuyns, Tinne Geens, Lubica Kriskova, Silviana Onisei, Peter T. Jones, Yiannis Pontikes

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 317-327 doi: 10.1007/s11705-017-1622-6

Abstract: This study reports on the impact of the curing conditions on the mechanical properties and leaching ofGeochemical modelling and two leaching tests were performed, the EA NEN 7375 tank test, and the BS ENResults show that Cu, Ni, Pb, Zn and As leaching occurred even at high pH, which varied between 10 andLeaching values obtained were below the requirements for non-shaped materials of Flemish legislation

Keywords： inorganic polymer     geochemical leaching modelling     heavy metals     recycling     non-ferrous fayalitic slag     curing    

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Reinforcement of the two-stage leaching of laterite ores using surfactants

Peiyu Zhang, Hairui Wang, Jingcheng Hao, Jiwei Cui

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 562-570 doi: 10.1007/s11705-020-1946-5

Abstract: A two-stage leaching process, namely, high-pressure acid leaching-atmospheric acid leaching, was usedThe leaching ratio of Ni was low because of adsorption and incomplete leaching.In this work, surfactants were used as additives to boost the leaching ratio of Ni.Leaching results showed that stearyl trimethyl ammonium chloride (STAC) apparently increased the leachingKinetics analysis indicated that the leaching process was controlled by chemical reaction.

Keywords： laterite ore     Ni     surfactant     acid leaching    

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Oxidative leaching kinetics of molybdenum-uranium ore in H

T. A. Lasheen, M. E. El-Ahmady, H. B. Hassib, A. S. Helal

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 95-102 doi: 10.1007/s11705-013-1317-6

Abstract: The leaching temperature, hydrogen peroxide concentration, sulfuric acid concentration, leaching timeThe leaching kinetics of molybdenum showed that the reaction rate of the leaching process is controlledThe leaching process follows the kinetic model 1 ? (1?temperature, concentrations of H O and H SO and the mesh size are the main factors that influence the leaching

Keywords： leaching of molybdenum     leaching of uranium     kinetics    

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Research and development of the continuous pressure acid leaching technology for the pretreatment of

Wang Jikun,Feng Guilin

Strategic Study of CAE 2009, Volume 11, Issue 5,   Pages 18-22

Abstract: Small-scale and half-industrialized tests show that direct pressure acid leaching of copper anode slimeThe trends of Ag, Se and Te in continuous leaching process are obviously different from those in discontinuousleaching process, and the leaching results are better than those of discontinuous pressure leaching

Keywords： copper anode slime     comprehensive use     pressure acid leaching     continous leaching process    

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Leaching of aluminum from coal spoil by mechanothermal activation

Xiaoxue SUN,Yuzhu SUN,Jianguo YU

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 216-223 doi: 10.1007/s11705-015-1518-2

Abstract: This resulted in a high aluminum leaching activity in the mechanothermally activated CS.

Keywords： coal spoil     mechanothermal compound activation     leaching    

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Leaching toxicity characteristics of municipal solid waste incineration bottom ash

Khamphe PHOUNGTHONG,Yi XIA,Hua ZHANG,Liming SHAO,Pinjing HE

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 399-411 doi: 10.1007/s11783-015-0819-5

Abstract: The physico-chemical properties and leaching behavior of MSWIBA were studied, and ecotoxicological testingIn addition, the cluster of these variables indicated similar leaching behaviors.Overall, the research demonstrated that the ecotoxicological risks resulting from MSWIBA leaching could

Keywords： Municipal solid waste incineration     bottom ash     alternative material     leaching tests     toxicity     Vibrio    

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Leaching Mechanism of Slurry Electrolysis

Yang Xianwan,Zhang Yingjie,Deng Lunhao,Qiu Dingfan

Strategic Study of CAE 2000, Volume 2, Issue 6,   Pages 49-51

Abstract:

Leaching mechanism of refractory gold concentrate in slurry electrolysis process has been studied.It has been proved that the main way of lead leaching is chemical dissolution and chemical oxidation

Keywords： slurry electrolysis     leaching     mechanism    

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Recent advances in selective acetylene hydrogenation using palladium containing catalysts

Alan J. McCue, James A. Anderson

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 142-153 doi: 10.1007/s11705-015-1516-4

Abstract: Recent advances with Pd containing catalysts for the selective hydrogenation of acetylene are described

Keywords： acetylene     ethylene     selective hydrogenation     palladium     bimetallic    

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Preparation of polysulfone-based block copolymer ultrafiltration membranes by selective swelling and

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 745-754 doi: 10.1007/s11705-021-2038-x

Abstract: Selective swelling of block copolymers of polysulfone-b-poly(ethylene glycol) is an emerging strategyHerein, we prepared nanoporous polysulfone-b-poly(ethylene glycol) ultrafiltration membranes by selectiveSelective swelling was performed on the obtained block copolymer structures in the solvent pair of ethanol

Keywords： block copolymers     selective swelling     ultrafiltration     CaCO3 nanoparticles     sacrificial nanofillers    

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Semi-industrial Tests of Pressure Leaching on High-iron Sphalerite Concentrate

Wang Jikun,Zhou Tingxi,Wu Jinmei

Strategic Study of CAE 2005, Volume 7, Issue 1,   Pages 60-64

Abstract:

High-iron sphalerite was subjected to two-stage pressure leaching.The leaching rate of zinc and iron was 97.09 % and 15.2 % respectively.For the purpose of comparison, one-stage pressure leaching on average sphalerite was conducted.Leaching rate of zinc and iron was 98.09 % and 37.88 % respectively, and the yield of elemental sulphur

Keywords： high-iron sphalerite     pressure leaching     semi-industrial tests     elemental sulphur    

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Title Author Date Type Operation

Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone

Journal Article

Electrochemistry during efficient copper recovery from complex electronic waste using ammonia based solutions

Zhi Sun, Hongbin Cao, Prakash Venkatesan, Wei Jin, Yanping Xiao, Jilt Sietsma, Yongxiang Yang

Journal Article

Characteristics of the stabilized/solidified municipal solid wastes incineration fly ash and the leaching

Yan SHAO,Haobo HOU,Guangxing WANG,Sha WAN,Min ZHOU

Journal Article

Assessment of leaching behavior and human bioaccessibility of rare earth elements in typical hospital

Chunfeng Wang, Guanfei Chen, Yanchen Zhu, Dan Yao, Wanfeng Wang, Lianjun Wang

Journal Article

Investigation of Cu leaching from municipal solid waste incinerator bottom ash with a comprehensive approach

Jun YAO, Wenbing LI, Fangfang XIA, Jing WANG, Chengran FANG, Dongsheng SHEN

Journal Article

The influence of curing conditions on the mechanical properties and leaching of inorganic polymers made

Remus I. Iacobescu, Valérie Cappuyns, Tinne Geens, Lubica Kriskova, Silviana Onisei, Peter T. Jones, Yiannis Pontikes

Journal Article

Reinforcement of the two-stage leaching of laterite ores using surfactants

Peiyu Zhang, Hairui Wang, Jingcheng Hao, Jiwei Cui

Journal Article

Oxidative leaching kinetics of molybdenum-uranium ore in H

T. A. Lasheen, M. E. El-Ahmady, H. B. Hassib, A. S. Helal

Journal Article

Research and development of the continuous pressure acid leaching technology for the pretreatment of

Wang Jikun,Feng Guilin

Journal Article

Leaching of aluminum from coal spoil by mechanothermal activation

Xiaoxue SUN,Yuzhu SUN,Jianguo YU

Journal Article

Leaching toxicity characteristics of municipal solid waste incineration bottom ash

Khamphe PHOUNGTHONG,Yi XIA,Hua ZHANG,Liming SHAO,Pinjing HE

Journal Article

Leaching Mechanism of Slurry Electrolysis

Yang Xianwan,Zhang Yingjie,Deng Lunhao,Qiu Dingfan

Journal Article

Recent advances in selective acetylene hydrogenation using palladium containing catalysts

Alan J. McCue, James A. Anderson

Journal Article

Preparation of polysulfone-based block copolymer ultrafiltration membranes by selective swelling and

Journal Article

Semi-industrial Tests of Pressure Leaching on High-iron Sphalerite Concentrate

Wang Jikun,Zhou Tingxi,Wu Jinmei

Journal Article