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| Study on Sulfidation Roasting and Leaching Process of Chalcopyrite |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Chalcopyrite,Sulfidation roasting,Leaching,Copper solution |
| SONG Ning,YAN Ji-kang,DU Jing-hong |
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| Abstract: |
| A new technique of phase transformation of chalcopyrite by sulfidation roasting and deferrization by leaching are studied through the thermal analytical method and the mineral phase analytical method in lower temperature and Ar gas. The experimental data and the result of the thermal analysis indicate that phase transformation of chalcopyrite is complete. The X-ray diffraction and the mineral phase analysis of the roasting samples show that the transformed mineral phases are CuS and FeS_2, and the remained chalcopyrite is less. CuS is easy to oxidize and dissolve while FeS_2 is undissolved, therefore the pure CuS can be obtained. |
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