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- W2247604089 abstract "The current mining industry requires more efficient and environmentally friendly methods in order to recover precious metals encapsulated in sulphide ores. As sulphides of iron, copper and zinc are most found in these mines, the study of its dissolution by leaching using hydrogen peroxide as oxidizing agent and a sulfuric acid as leaching agent has been proposed.In this study, experiments were conducted by varying the concentration of hydrogen peroxide and sulfuric acid. The concentration of the reactants was monitored by titration methods during the course of the experiments, and the samples were analyzed by Atomic Absorption Spectrophotometry to measure the amount of iron, copper and zinc dissolved in each experiment, reaching to a maximum dissolution value of 6,53% for iron, 37% for copper and 48% for zinc.As a final application, experiments were performed using ethylene glycol as dispersing agent for the elemental sulfur that deposits in the surface of the sulphide particles. Different concentrations of ethylene glycol were tested with the combination of concentrations which resulted in higher yields of earlier experiments getting to the conclusion that the hydrogen peroxide reacts slower in presence of ethylene glycol. In addition, there have been made studies that suggest that this compound controls the high reactivity of hydrogen peroxide which would produce a higher reaction yield." @default.
- W2247604089 created "2016-06-24" @default.
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- W2247604089 date "2013-01-01" @default.
- W2247604089 modified "2023-09-23" @default.
- W2247604089 title "Disolución de Sulfuros Metálicos Utilizando Peróxido de Hidrógeno como Agente Oxidante en Medio Ácido" @default.
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- W2247604089 hasPublicationYear "2013" @default.
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