Search Results - "Breuer, P.L."

Cyanide and copper cyanide recovery by activated carbon by Dai, X., Breuer, P.L.

“…A process is proposed to recover the cyanide and copper cyanides following the leaching and recovery of gold from copper-containing gold ores. Metallic copper…”
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An electrochemical study of gold leaching in thiosulfate solutions containing copper and ammonia by Breuer, P.L, Jeffrey, M.I

“…The electrochemistry of gold in thiosulfate solutions containing copper and ammonia was studied using a combination of standard electrochemical techniques and…”
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Thiosulfate leaching kinetics of gold in the presence of copper and ammonia by Breuer, P.L., Jeffrey, M.I.

“…In recent years a significant amount of research has focused on thiosulfate as an alternative lixiviant for gold. However few fundamental studies have been…”
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The impact of thiosulfate oxidation products on the oxidation of gold in ammonia thiosulfate solutions by Chu, C.K., Breuer, P.L., Jeffrey, M.I.

“…The continued use of cyanide in the recovery of gold is being questioned due to environmental and public concerns. The present paper describes research into…”
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The cyanide leaching of gold in solutions containing sulfide by Jeffrey, M.I., Breuer, P.L.

“…A large proportion of the gold processed in the 21 st century will be recovered from sulfide ores. Since the sulfide minerals are to some extent soluble in…”
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Monitoring and minimisation of HCN (g) emissions from a gold plant by Heath, J.L., Rumball, J.A., Breuer, P.L., Jeffrey, M.I.

“…Hydrogen cyanide (HCN (g)) which is emitted from all gold processing operations as part of the normal circuit operation creates a potential occupational,…”
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Leaching and electrochemistry of gold, silver and gold–silver alloys in cyanide solutions: Effect of oxidant and lead(II) ions by Dai, X., Breuer, P.L.

“…The leaching and electrochemistry of gold, silver and gold–silver alloys in cyanide solutions has been investigated using air, oxygen and/or hydrogen peroxide…”
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Review of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, Te) and their deportment in gold processing Part II: Deportment in gold ore processing by cyanidation by KYLE, J. H, BREUER, P. L, BUNNEY, K. G, PLEYSIER, R

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A mechanistic model of the equilibrium adsorption of copper cyanide species onto activated carbon by Dai, X., Jeffrey, M.I., Breuer, P.L.

“…A mechanistic model has been developed to describe the equilibrium adsorption of copper cyanide species onto activated carbon. This model was based on the…”
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Review of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, Te) and their deportment in gold processing. Part 1: Mineralogy, aqueous chemistry and toxicity by Kyle, J.H., Breuer, P.L., Bunney, K.G., Pleysier, R., May, P.M.

“…A literature review on the deportment of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, and Te) in gold processing by cyanidation is presented which…”
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Comparison of activated carbon and ion-exchange resins in recovering copper from cyanide leach solutions by Dai, X., Breuer, P.L., Jeffrey, M.I.

“…The use of activated carbon and ion-exchange resins for recovering copper cyanide from gold leach solutions is compared in detail. When using activated carbon,…”
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Mechanisms of sulfide ion oxidation during cyanidation. Part I: The effect of lead(II) ions by Breuer, P.L., Jeffrey, M.I., Hewitt, D.M.

“…The mechanisms and the reaction products for the oxidation of sulfide ions in the presence lead sulfide (formed by the addition of lead(II) ions) have been…”
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Mechanisms of sulfide ion oxidation during cyanidation. Part II: Surface catalysis by pyrite by Hewitt, D.M., Breuer, P.L., Jeffrey, M.I., Naim, F.

“…The mechanisms and the reaction products for the oxidation of sulfide ions in the presence of pyrite have been established. When the leach solution contains…”
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Review of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, Te) and their deportment in gold processing by Kyle, J.H., Breuer, P.L., Bunney, K.G., Pleysier, R.

“…The second part of a literature review on the deportment of trace toxic elements in gold processing by cyanidation is presented. Part 1 of this review collated…”
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Cyanide measurement by silver nitrate titration: Comparison of rhodanine and potentiometric end-points by Breuer, P.L., Sutcliffe, C.A., Meakin, R.L.

“…The measurement of cyanide using a silver nitrate titration with p-dimethylaminobenzylidene rhodanine indicator has been used for many years by the gold…”
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Leaching of gold and copper minerals in cyanide deficient copper solutions by Breuer, P.L, Dai, X., Jeffrey, M.I.

“…The concept of leaching copper–gold ores using leach solutions which contain Cu(CN) 3 2− was investigated. Gold leaching occurs in air saturated Cu(CN) 3 2−…”
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The reduction of copper(II) and the oxidation of thiosulfate and oxysulfur anions in gold leaching solutions by Breuer, P.L., Jeffrey, M.I.

“…Due to the increasing environmental and public concerns associated with cyanide leaching of gold, much of the current research in gold hydrometallurgy is…”
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A kinetic study that compares the leaching of gold in the cyanide, thiosulfate, and chloride systems by JEFFREY, M. I, BREUER, P. L, CHOO, W. L

“…Due to the increasing environmental and public concerns over cyanidation, there has been a large amount of research into viable alternative lixiviants. This…”
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Copper catalysed oxidation of thiosulfate by oxygen in gold leach solutions by Breuer, P.L., Jeffrey, M.I.

“…The environmental and public concern over the continued use of cyanide in the recovery of gold has grown in recent times due to a number of recently publicised…”
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The importance of controlling oxygen addition during the thiosulfate leaching of gold ores by Jeffrey, M.I., Breuer, P.L., Chu, C.K.

“…This paper presents a study of the copper–ammonia–thiosulfate system for the leaching of gold. The major problem with the thiosulfate system is that for…”
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