Procedures for the extraction of copper and precious metals from copper sulphide and iron ore or concentrate

摘要

The procedure includes: (a) converting ore or ore concentrate into inert air, ranging from 300 ℃ to 600 ℃ in 5 minutes to 24 hours; (b) grinding reaction products; (c) At least partially separate sulfide containing copper from iron sulfide by voltage, gravity or magnetic procedures, air separation, particle size selection, water circulation or floating control procedures; and (d) treat sulfide containing copper, Copper is obtained by high temperature metallurgy or hydrometallurgy. (a) It's continuous,In a three camera system, in a tubular converter or fluidized bed reactor. (b) At least partially in tubular converters or in-situ fluidized bed reactors by incorporating grinding balls. Sulfur is produced from a geochemical perspective in a galactic, semigalactic, or catalytic way. During (a), precious metals are concentrated at the copper sulfide stage. The ore or concentrate of the ore is selected from the calcium (CuFeS2).Bornita（CU5FES4），Cubanita（Cufes4），Calcium (Cu2S),Ingenita (cu9s5) and / or coina (CUS). Iron sulfide is pyrite or pyrite