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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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Recycling indium and tin by treating ITO waste with sulphuric acid and hydrochloric acid leaching-sulfide

Wang Shukai

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 34-37

Abstract: The problems can be solved by treating ITO waste with sulphuric acid and hydrochloric acid leaching-sulfide

Keywords： ITO     waste     indium     tin     sulphuric acid and hydrochloric acid leaching-sulfide precipitation    

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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.The residual acid in the leachate was 3.95 g/L.For the purpose of comparison, one-stage pressure leaching on average sphalerite was conducted.The leachate with higher acid content (46.4 g/L) could be integrated into the existing traditional hydrometallurgical

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

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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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New Technology for Production of Synthetic Rutile by Pressure Leaching and Preparation of Sponge Titanium

Wang Haibei,Jiang Kaixi,Shi Youfu,Zhang Lei,Wang Yufang,Zhang Bangsheng

Strategic Study of CAE 2004, Volume 6, Issue 12,   Pages 91-93

Abstract: Experiments have been, conducted on preparation of synthetic rutile by pressure leaching and the content

Keywords： pressure leaching     synthetic rutile     molten-salt electrolysis     sponge titanium    

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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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Plasma-assisted oxidation of benzoic acid

Anna Khlyustova, Nikolay Sirotkin

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 513-521 doi: 10.1007/s11705-019-1825-0

Abstract: Oxidation of benzoic acid in aqueous solutions by the atmospheric pressure glow discharge and underwaterThe yields of hydroxyl radical were estimated on the kinetics data for the hydroxylation of benzoic acid

Keywords： atmospheric pressure glow discharge     underwater diaphragm discharge     oxidation     benzoic acid     hydroxyl radical    

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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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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 processing of molybdenum-uranium ore in a sulfuric acid solution using hydrogen peroxide as an oxidantThe leaching temperature, hydrogen peroxide concentration, sulfuric acid concentration, leaching timeThe optimum process operating parameters were: temperature: 95°C; H O concentration: 0.5 M; sulfuric acidThe leaching kinetics of molybdenum showed that the reaction rate of the leaching process is controlledThe leaching process follows the kinetic model 1 ? (1?

Keywords： leaching of molybdenum     leaching of uranium     kinetics    

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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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Development and Prospect of China Uranium Mining and Metallurgy

Que Weimin,Wang Haifeng,Niu Yuqing,Zhang Feifeng,Gu Wancheng

Strategic Study of CAE 2008, Volume 10, Issue 3,   Pages 44-53

Abstract: emphasizing investigation approaches and application levels of uranium mining technologies such as in-situ leachingand heap leaching, stope leaching.On the basis of analysis on status of uranium mining and metallurgy

Keywords： uranium mining     in-situ leaching     heap leaching     extraction     purification     development    

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Title Author Date Type Operation

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

Wang Jikun,Feng Guilin

Journal Article

Recycling indium and tin by treating ITO waste with sulphuric acid and hydrochloric acid leaching-sulfide

Wang Shukai

Journal Article

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

Wang Jikun,Zhou Tingxi,Wu Jinmei

Journal Article

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

Peiyu Zhang, Hairui Wang, Jingcheng Hao, Jiwei Cui

Journal Article

New Technology for Production of Synthetic Rutile by Pressure Leaching and Preparation of Sponge Titanium

Wang Haibei,Jiang Kaixi,Shi Youfu,Zhang Lei,Wang Yufang,Zhang Bangsheng

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

Plasma-assisted oxidation of benzoic acid

Anna Khlyustova, Nikolay Sirotkin

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

Oxidative leaching kinetics of molybdenum-uranium ore in H

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

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

Development and Prospect of China Uranium Mining and Metallurgy

Que Weimin,Wang Haifeng,Niu Yuqing,Zhang Feifeng,Gu Wancheng

Journal Article