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Chengyan Wang

University of Science and Technology Beijing

30 Xueyuan Road, Haidian District

beijing, 100083

China

SCHOLARLY PAPERS

18

DOWNLOADS

1,230

TOTAL CITATIONS

9

Scholarly Papers (18)

1.

Ammonia Leaching Process For Selective Extraction Of Nickel and Cobalt From Polymetallic Mixed Hydroxide Precipitate

Number of pages: 27 Posted: 23 Aug 2022
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 311 (244,299)
Citation 3

Abstract:

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Mixed hydroxide precipitate, Reductive ammonia leaching, Ternary ammonia leaching system, Dynamic model

Investigation of the Thermal Behavior of Ca(No3)2·4h2o and its Application for the Regeneration of Hno3 and Cao

Number of pages: 33 Posted: 28 Jun 2023
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 96 (721,228)
Citation 1

Abstract:

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Thermodynamic analysis, Calcium nitrate tetrahydrate, Nitric acid pressure leaching, Regeneration, Pyrolysis kinetics

Investigation of the Thermal Behavior of Ca(No3)2·4h2o and its Application for the Regeneration of Hno3 and Cao

Number of pages: 33 Posted: 16 May 2023
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 37 (1,252,562)

Abstract:

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Thermodynamic analysis, Calcium nitrate tetrahydrate, NAPL, Regeneration, Pyrolysis kinetics.

3.

Separation and Recovery Of Ni, Co, Al And Sc From Mixed Hydroxide Precipitate Derived From Limonitic Laterite

Number of pages: 23 Posted: 12 May 2023
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 95 (725,554)

Abstract:

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Aluminum, Scandium, Nickel, Cobalt, Leaching, Solvent extraction, Precipitation

4.

Separation and Recovery of Valuable Metals from Ammonia Leaching Solution of Spent Lithium-Ion Batteries

Number of pages: 33 Posted: 24 Feb 2023
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 75 (852,604)

Abstract:

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spent lithium-ion batteries, Ammonia leaching solution, Resource recovery, Solvent extraction, Ammonia distillation

5.

An Efficient Process for Recovering Copper as Cuo Nanoparticles from Acidic Waste Etchant Via Chemical Precipitation and Thermal Decomposition: Turning Waste into Value-Added Product

Number of pages: 27 Posted: 16 Feb 2022
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 72 (924,743)

Abstract:

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Acidic waste etchant, copper recovery, CuO nanoparticles, precipitation, thermal decomposition

6.

Regenerating Anode Materials from Scrapped Lithium-Ion Battery by High-Temperature Treatment

Number of pages: 29 Posted: 08 Nov 2021
Yang Gao, Jialiang Zhang, Yongqiang Chen and Chengyan Wang
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 67 (916,100)
Citation 5

Abstract:

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Recycling spent graphite, high-temperature treatment, physical properties, initial charge capacity, cycle stability

7.

Regeneration of Graphite Anode from Spent Lithium Iron Phosphate Batteries: Evolution of Microstructure and Morphology of Graphite in Heat Treatment Process

Number of pages: 33 Posted: 24 Jun 2023
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 62 (951,658)

Abstract:

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Spent LFP batteries, Spent graphite anode, Purification, Regeneration, High temperature treatment

Morphology Evolution and Agglomeration Mechanism of Fe5si3 Precipitated Phase after Fe-Si Microalloying and its Effect on the Properties of Brasses

Number of pages: 39 Posted: 28 Mar 2023
Xiang Li, Baozhong Ma, Chengyan Wang and Yongqiang Chen
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 41 (1,210,354)

Abstract:

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Microstructure evolution, Iron-silicon microalloying, Recycling of scrap brasses, Agglomeration mechanism, crystal growth

Morphology Evolution and Agglomeration Mechanism of Fe5si3 Precipitated Phase after Fe-Si Microalloying and its Effect on the Properties of Brasses

Number of pages: 38 Posted: 16 May 2023
Xiang Li, Baozhong Ma, Chengyan Wang and Yongqiang Chen
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 20 (1,500,232)

Abstract:

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Microstructure evolution, Iron-silicon microalloying, Recycling of scrap brasses, Agglomeration mechanism, Crystal growth

Efficient Extraction of Iron and Chromium from Laterite Residue Through Molten Reduction Employing Biomass Reductant

Number of pages: 30 Posted: 23 Apr 2025
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 23 (1,473,203)

Abstract:

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Laterite residue, iron recovery, chromium recovery, biomass reduction, thermodynamic analysis

Efficient Extraction of Iron and Chromium from Laterite Residue Through Molten Reduction Employing Biomass Reductant

Number of pages: 30 Posted: 21 Apr 2025
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 18 (1,537,408)

Abstract:

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Laterite residue, iron recovery, chromium recovery, biomass reduction, thermodynamic analysis

Efficient Extraction of Iron and Chromium from Laterite Residue Through Molten Reduction Employing Biomass Reductant

Number of pages: 30 Posted: 22 Apr 2025
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 17 (1,548,841)

Abstract:

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Laterite residue, iron recovery, chromium recovery, biomass reduction, thermodynamic analysis

10.

Removal of Fluoride From Waste Acid Using Lanthanum Chloride: Defluoridation Behavior and Reaction Kinetics of Recovery Process

Number of pages: 34 Posted: 05 Apr 2022
affiliation not provided to SSRN, University of Science and Technology Beijing, University of Science and Technology Beijing, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 58 (980,173)

Abstract:

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waste acid, fluoride removal, rare earth, defluoridation behavior, reaction kinetics

11.

Residue Carbon Removal for the High-Quality and Sustainable Direct Regeneration of Spent Lifepo4 Materials

Number of pages: 28 Posted: 13 Oct 2024
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 47 (1,097,529)

Abstract:

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Lithium-ion batteries, Spent LFP materials, Carbon removal, Regeneration, Oxidation roasting

12.

One-Step Recovery of Cobalt from Ammonia Leaching Solution of Spent Lithium-Ion Batteries

Number of pages: 30 Posted: 12 Dec 2022
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 45 (1,121,190)

Abstract:

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NH3-(NH4)2CO3 solution, ammonia distillation, cobalt recovery, Co3O4, CoCO3

13.

Atmospheric-pressure oxidative leaching of copper-cobalt sulfide concentrates using Fe3+ and sulfur dispersing agents

Number of pages: 27 Posted: 06 Sep 2025
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 41 (1,170,409)

Abstract:

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Copper-cobalt sulfide concentration, Atmospheric pressure leaching, Sulfur dispersing agent, Extraction

14.

Thermodynamic Analysis and Application for Extracting Valuable Metals from the Disposal of Spent Catalyst Residue Via Atmospheric Leaching

Number of pages: 25 Posted: 25 Apr 2023
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 29 (1,332,057)

Abstract:

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Spent catalyst, Iron phosphate residue, Thermodynamic analysis, Atmospheric leaching, extraction

15.

Closed-loop upcycling of iron phosphate residue into LiFePO4 via phosphoric acid leaching and multi-parameter-controlled oxidative crystallization

Number of pages: 32 Posted: 07 Jan 2026
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 23 (1,411,822)

Abstract:

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Spent lithium iron phosphate batteries, Iron phosphorus residue, Leaching, Oxidative precipitation

16.

Chloridizing Leaching of Lead Anode Mud: Rapid Gold Enrichment and Fluorosilicate Removal

Number of pages: 33 Posted: 08 Oct 2024
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 21 (1,448,301)

Abstract:

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Lead anode mud, rapid Au enrichment, Chloridizing leaching, Fluorosilicate

17.

Disparity in Leaching Behavior of Representative Copper Sulfide Minerals with Dilute H2so4 and the Underlying Microscopic Mechanism

Number of pages: 41 Posted: 03 Jun 2024
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 16 (1,500,778)

Abstract:

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Copper sulfide minerals, Dilute sulfuric acid, Density functional theory, X-ray photoelectron spectroscopy, Hydrogen adsorption, Passivation

18.

High Value-Added Regeneration of Anode Materials from Retired Lithium-Ion Batteries: Structural Design And Synthesis Process

Number of pages: 33 Posted: 08 May 2023
Yang Gao, Jialiang Zhang, Yongqiang Chen and Chengyan Wang
University of Science and Technology Beijing, University of Science and Technology Beijing, University of Science and Technology Beijing and University of Science and Technology Beijing
Downloads 16 (1,500,778)

Abstract:

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Retired lithium-ion batteries, anode materials, silicon/recovered-graphite composites, spray-pyrolysis technology, value-added utilization