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Start Over Author "Guo, Wenxiang" Journal hydrometallurgy
2 results on '"Guo, Wenxiang"'

2. Study of in-situ precipitation of arsenic bearing crystalline particles during the process of copper electrorefining

Author

Yan Yang, Yang Jianguang, Guo Wenxiang, Ruiyang Xiao, Liu Shan, Hu Hui, Weizhi Zeng, Changqi Xiong, and Lin Wu

Subjects
In situ, Bearing (mechanical), Precipitation (chemistry), Chemistry, 0211 other engineering and technologies, Metals and Alloys, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, Industrial and Manufacturing Engineering, law.invention, 020401 chemical engineering, Impurity, law, Phase (matter), Materials Chemistry, 0204 chemical engineering, Current density, Arsenic, Seed crystal, 021102 mining & metallurgy
Abstract

A series of ex-situ precipitation experiments were firstly performed to investigate the effects of Eh/pH and impurity molar ratio on the transition of arsenic bearing precipitates from amorphous phase to crystalline phase. Based on the analyses of the ex-situ experiments, another series of in-situ precipitation experiments were designed and conducted to explore the effects of current density, circulation pattern, inlet position, seed crystals' concentration, and impurity molar ratio on the formation and growth of crystalline precipitates containing arsenic. It was found that higher Eh and pH values, as well as the impurity ratio of Sb/Bi

Published
2021
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