Results 21 to 30 of about 1,040,720 (337)
Experimental Study on the Dressing and Smelting of a Pyrrhotite-bearing Primary Gold Ore [PDF]
E3S Web of Conferences, 2023 The content of pyrrhotite in a primary gold mine containing pyrrhotite is 0.68%. In the process of alkaline leaching pretreatment, there are problems such as large ore quantity and high alkali consumption.
Chen Yanbo, Wang Junjie
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Review of gold leaching in thiosulfate-based solutions
Transactions of Nonferrous Metals Society of China, 2021 : Numerous non-cyanide leaching lixiviants have been developed, among which thiosulfate is considered the most promising alternative to cyanide due to its non-toxicity, low price, high leaching rate and excellent characteristics in dealing with ...
F. Xie, Jun-nan Chen, Jian Wang, W. Wang
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Experimental Research on Environmental Friendly Gold Leaching of a Refractory Gold Ore in Laos
Kuangchan zonghe liyong, 2022 The gold ore type of the gold mining in Laos is altered rock. Gold is the only recyclable element in the ore. Metal minerals are mainly iron sulfides. Part of the gold is wrapped in sulfide, which belongs to the refractory gold ore.
Weigang Kang, Jingyu Chen
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Kuangchan zonghe liyong, 2022 This article was aimed at a certain tellurium-bearing gold ore and its samples after alkaline leaching. Through the process mineralogical analysis of two samples, the elemental composition, mineral composition and minerals of the ore in the sampleswere ...
Chao Xu +5 more
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Selective Pre-leaching of Tellurium From Telluride-Type Gold Concentrate
Frontiers in Chemistry, 2021 With a telluride-type gold ore flotation concentrate as the research object, the Na2S + NaOH collaborative leaching process was applied to selectively separate tellurium before the cyanide leaching of gold and silver.
Wei Yang +9 more
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Combined leaching of Carlin-type gold deposit in Guizhou by potassium chlorate and bleaching powder
Materials Research Express, 2022 Cyanidation has been considered an effective process for extracting gold from gold-bearing ores for over 100 years. However, this process also has several disadvantages including it being toxic, inefficient, and unsuitable for leaching gold from ...
Xin Yuan +4 more
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Kuangchan zonghe liyong, 2022 A gold in Henan Province is a complex and argillaceous high oxidation gold mines, and it has the characteristics of complex embedment characteristics, high oxidation rate and serious argillization, which lead to the poor beneficiation indexes .
Ning Yang
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Metals, 2022 The nature of gold (Au) ore deposits plays an essential role in determining the best gold recovery method as an alternative to cyanidation, considering environmental concerns.
Jeanne Pauline Munganyinka +8 more
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Research progress on non-cyanide leaching of refractory gold ores
工程科学学报, 2019 With the increasing demand for gold and the decreasing of easily treated gold resources, refractory gold ores, which are characterized by low gold recovery and high cyanide consumptions when subjected to direct cyanide leaching, have gradually become the
JIA Yu-juan +3 more
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Thiourea Leaching: An Update on a Sustainable Approach for Gold Recovery from E-waste
Journal of Sustainable Metallurgy, 2022 Electronic waste is a dominant global issue with over 50 million tons generated annually. Still, as an amalgamation of precious and rare raw materials, electronic waste is a considerable economic resource with the most valuable components located on the ...
D. Ray +4 more
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