铜离子在黄铜矿表面的吸附及活化作用：一个自活化的新观点

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Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 24; no. 12; pp. 3955 - 3963
Main Author 邓久帅 文书明 刘建 吴丹丹 丰奇成
Format Journal Article
LanguageEnglish
Published 2014
Subjects
吸附
自活化
铜离子
黄铜矿
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ISSN1003-6326

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Bibliography:43-1239/TG
chalcopyrite;copper ions;adsorption;self-activation
Jiu-shuai DENG, Shu-ming WEN, Jian LIU, Dan-dan WU, Qi-cheng FENG （State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China）
The adsorption behaviors of copper ions on chalcopyrite surfaces were investigated based on zeta potential measurements, X-ray photoelectron spectroscopy, copper ion adsorption experiments, first-principles calculations, and Hallimond tube cell flotation experiments. The results show that copper ions activate the chalcopyrite as a result of the interactions between copper ions and sulfur on the chalcopyrite surface. This adsorption increases the flotation rate under certain conditions, and this is beneficial for the flotation of chalcopyrite. The copper ions in the flotation pulp are mainly derived from surface oxidation dissolution and the release of fluid inclusions, and these effects enable chalcopyrite to be activated.
ISSN:1003-6326