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Dissolution kinetics of malachite in sulphuric acid
(ELSEVIER SCIENCE BV, 2004)
A kinetic study of the sulphuric acid leaching of oxidised copper ore, primarily malachite, was carried out. The effects of leaching time, stirring speed, acid concentration, solid to liquid ratio, reaction temperature, ...
Dissolution kinetics of sphalerite in acidic ferric chloride leaching
(ELSEVIER SCIENCE SA, 2005)
This paper presents a study for leaching kinetics of sphalerite concentrate in FeCl3-HCl solution. The shrinking core model was applied to the results of experiments investigating the effects of stirrer speed of 200-600 ...
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 ...
Leaching of celestite with sodium sulfide
(TAYLOR & FRANCIS INC, 2006)
Leaching of celestite mineral, SrSO4 , with sodium sulfide, Na2S, was investigated from the point of strontium carbonate, SrCO3, production. Experiments were carried out to explain the conversion mechanism of celestite to ...
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 ...