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Publikováno v:
Hydrometallurgy. 181:215-220
It is well known that the leaching of chalcopyrite has very slow kinetics. The generally higher reactivity of chalcopyrite in chloride as opposed to sulfate solutions has resulted in many studies of chloride systems for the hydrometallurgical treatme
Publikováno v:
Hydrometallurgy. 180:104-112
The acidic ferric sulphate system is the industrial standard for the acid leaching of uranium ores. Alternatives such as ferric chloride/hydrochloric acid have been investigated, but never used industrially. Selected ferric sulphate leaching experime
Autor:
J. Brent Hiskey, Isabel F. Barton
Publikováno v:
Hydrometallurgy. 207:105775
Chalcopyrite (CuFeS2) makes up a large and increasing fraction of the world's future copper resources, but is highly refractory to leaching with common lixiviants. Novel lixiviants, less common reagents recently proposed for chalcopyrite leaching and
Publikováno v:
Hydrometallurgy. 169:213-218
An ionic liquid reagent Cyphos IL 101 (trihexyltetradecylphosphonium chloride) was studied for the recovery of cobalt and manganese from the synthetic nickel laterite leach solution containing chloride. It is shown that cobalt and manganese were effe
Publikováno v:
Hydrometallurgy. 196:105428
The effect of a thermal pretreatment on the kinetic parameters and rate-controlling step for nickel leaching dissolution in hydrochloric acid‑sodium chloride solutions from a low – grade Colombian nickel laterite (1.15% Ni, 0.12% Co and 41.1% Fe)
Publikováno v:
Hydrometallurgy. 194:105360
Uranium is extracted from ore bodies by leaching with either sulfuric acid or sodium carbonate/bicarbonate (alkaline) solutions. Alkaline leaching is usually preferred for ores with gangue compositions that would otherwise result in excessive acid co
Autor:
Mohsen Hashemzadeh, Wenying Liu
Publikováno v:
Hydrometallurgy. 192:105245
Heap chloride leaching of low-grade copper sulfides with the use of seawater has been proposed as a feasible alternative to address challenges associated with water scarcity and depletion of oxides. Our previous study of leaching kinetics showed that
Publikováno v:
Hydrometallurgy. 142:56-59
In this research, chloride–hypochlorite leaching of gold from a highly refractory pyritic concentrate was conducted and effects of stirring speed, temperature and particle size on the leaching rate were investigated. Results showed that the particl
Autor:
Sneha Samal
Publikováno v:
Hydrometallurgy. 137:8-12
The effect of phenol and resorcinol on hydrochloric acid leaching of Ti-rich slag is investigated. The leaching rate is exponentially proportional to acid and phenol concentrations. Any metal–phenol complexes decomposed by chloride ions should cons
Publikováno v:
Hydrometallurgy. :117-123
The reactivity of ZnO during its dissolution by citric acid in different electrolytic environments was studied. It was observed that at low concentration (0.05 mol/L) citric acid was able to dissolve 90.4% of ZnO after 1 h at 50 °C. The addition of