Claims
- 1. A process for decomposition of chalcopyrite comprising reacting the chalcopyrite with an aqueous hydrochloric acid solution and a metallic reductant consisting of iron or lead to form insoluble metallic copper, solubilize the iron in the chalcopyrite, and convert a major proportion of the sulfur in the chalcopyrite to gaseous hydrogen sulfide, the mole ratio of acid to chalcopyrite being in the range of about 3:1 to 9:1 and the mole ratio of reductant to chalcopyrite being in the range of about 1:1 to 4:1.
- 2. The process of claim 1 in which the metalic reductant is iron.
- 3. The process of claim 1 in which the metallic reductant is lead.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 342,920, filed Mar. 19, 1973 and now abandoned.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
342920 |
Mar 1973 |
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