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Conference Proceedings

Extractive Metallurgy of Gold and Base Metals Conference, Kalgoorlie, October 1992

Conference Proceedings

Extractive Metallurgy of Gold and Base Metals Conference, Kalgoorlie, October 1992

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Extraction of Gold in Hallide Media

A review of the literature indicated that several studies have been reported on the dissolution of gold using iodide/iodine, bromide/bromine leaching systems. Although the reagent costs are much cheaper for chloride/chlorine (or hypochlorite) this system has not been fully evaluated. This study was conducted to evaluate the fundamental chemistry of the chloride/hypochlorite leaching system. The CHEMIX program was used to model the stability of various gold species existing in the solution. The gold dissolution rate at different conditions was determined using gold strips immersed in various mixtures of chloride/hypochlorite. Leaching experiments were conducted to test the extraction of gold from various ores (oxidised and copper-gold ores), showing a promising prospect for this technique in various applications.
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  • Published: 1992
  • PDF Size: 0.544 Mb.
  • Unique ID: P199209023

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