2001
DOI: 10.1016/s0892-6875(00)00172-2
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Thiosulfate leaching of gold—A review

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Cited by 516 publications
(312 citation statements)
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References 30 publications
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“…In arid, surficial environments (down to 500 m below the land surface; [75]) chemolithoautotrophic iron-and sulfur-oxidizing bacteria, e.g., A. ferrooxidans and A. thiooxidans, and archaea, are known to form biofilms on metal sulfides (e.g., gold-bearing pyrites and arsenopyrites), and obtain metabolic energy by oxidizing these minerals [3,76]. During this process thiosulfate is produced, which in the presence of oxygen leads to gold oxidation and complexation [77]. Mobile gold complexes can then be taken up by plants and incorporated into plant tissue as nano-and micro-clusters of metallic gold or gold(I) bound to sulfur and nitrogen containing macromolecules.…”
Section: Geobiological Formation Of Gold Anomalous Calcretementioning
confidence: 99%
“…In arid, surficial environments (down to 500 m below the land surface; [75]) chemolithoautotrophic iron-and sulfur-oxidizing bacteria, e.g., A. ferrooxidans and A. thiooxidans, and archaea, are known to form biofilms on metal sulfides (e.g., gold-bearing pyrites and arsenopyrites), and obtain metabolic energy by oxidizing these minerals [3,76]. During this process thiosulfate is produced, which in the presence of oxygen leads to gold oxidation and complexation [77]. Mobile gold complexes can then be taken up by plants and incorporated into plant tissue as nano-and micro-clusters of metallic gold or gold(I) bound to sulfur and nitrogen containing macromolecules.…”
Section: Geobiological Formation Of Gold Anomalous Calcretementioning
confidence: 99%
“…This slight quenching from thiosulfate might come from the thermodynamically possible (as in gold leaching), but very slow, reaction between gold and thiosulfate at room temperature. 28 …”
Section: Selectivity Of the Developed Sulfide Sensormentioning
confidence: 99%
“…При работе с тонкими фракциями золота эффективность извлечения золота обратно-пропорциональна размеру золотин, а золото крупностью менее 0,03 мм вообще не улавливается известными способами механического обогащения [8]. Поэтому решение проблемы извлечения золота К вопросу о получении золота из техногенных объектов месторождения "Нагима" такого типа следует искать в применении методов гидрометаллургии.…”
Section: аммиачно-тиосульфатное выщелачивание золота из техногенных оunclassified