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Dissolution kinetics of malachite in ammonia/ammonium carbonate leaching
(ELSEVIER SCIENCE BV, 2005)
The leaching of oxide copper ore containing malachite, which is the unique copper mineral in the ore, by aqueous ammonia solution has been studied. The effect of leaching time, ammonium hydroxide, and ammonium carbonate ...
Dissolution kinetics of chalcopyrite in acidic potassium dichromate solution
(ELSEVIER SCIENCE BV, 2006)
The dissolution of chalcopyrite in acidic potassium dichromate solution has been investigated with respect to the effects of sulphuric acid and potassium dichromate concentrations, by changing stirring speed, leaching ...