Journal article

An investigation into the precipitation of copper sulfide from acidic sulfate solutions

T Hong, Y Wei, L Li, KA Mumford, GW Stevens

Hydrometallurgy | Elsevier | Published : 2020

Abstract

Due to the local and global supersaturation of metal sulfides in aqueous solutions, the industrial metal sulfurization processes using soluble sulfur resources (Na2S/Na2S2O3/(NH4)2S/H2S) and elemental sulfur have insurmountable defects, including the unfilterable fine precipitates, weak chemical selectivity, high reagent toxicity, and generation of soluble polysulfides. In order to develop a cleaner and green sulfurization method, a surface/heterogeneous sulfurization system using wetted sulfur particles and sulfur dioxide was investigated through single-factor experiments and reaction mechanism tests. The results of disproportionation tests indicated that reaction parameters, such as temper..

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Grants

Awarded by Natural Science Foundation of Shaanxi Province of China


Awarded by Basic Research Foundation of Xi'a University of Architecture Technology


Awarded by China Scholarship Council


Funding Acknowledgements

This work was financially supported by the Natural Science Foundation of Shaanxi Province of China (Grant No. 2016JM5025) and the Basic Research Foundation of Xi'a University of Architecture & Technology (Grant No. QN1724). Tao Hong was financially supported by the China Scholarship Council (No. 201707835003).