Results 11 to 20 of about 1,040,720 (337)
Experimental study on thiosulfate leaching of gold from a high copper gold concentrate [PDF]
E3S Web of Conferences, 2021 The conventional cyanide leaching process is used to extract gold from a high copper gold concentrate. Because the copper associated minerals consume sodium cyanide in large quantities, the cost of the reagents is high and the economic benefit is not ...
Yanbo Chen +10 more
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Recovery of Gold from the Refractory Gold Concentrate Using Microwave Assisted Leaching
Metals, 2020 Microwave technology has been confirmed to be suitable for use in a wide range of mineral leaching processes. Compared to conventional leaching, microwave-assisted leaching has significant advantages.
Kanghee Cho +5 more
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Experimental Study on Cyanidation Leaching of a Low-grade Gold Mine in Guangxi
Kuangchan zonghe liyong, 2023 Gold content of a low-grade gold ore in Guangxi is 1.29 g/t, the gangue minerals are mainly quartz, and the content of non-ferrous metals such as copper, lead, zinc and other harmful elements arsenic is extremely low.
Linsong Yuan +5 more
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Cyanide-free gold leaching in exceptionally mild chloride solutions
Journal of Cleaner Production, 2019 All the industrially applied gold leaching methods (historical chlorine gas based leaching, dominating state-of-the-art cyanide gold leaching, processes at precious metals plants) suffer from the characteristics related to aggressive and even toxic ...
Riina Ahtiainen, M. Lundström
semanticscholar +2 more sources
Intensification Behavior of Mercury Ions on Gold Cyanide Leaching
Metals, 2018 Cyanidation is the main method used to extract gold from gold raw materials; however, a serious problem with this method is the low leaching rate. In order to improve gold leaching, the intensification behavior of mercury ions on gold cyanide leaching ...
Qiang Zhong +5 more
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Technology for Aiding the Cyanide Leaching of Gold Ores
SeparationsCyanide leaching technology was studied for low-grade oxidized gold ores in Guangxi Province. The gold grade of the raw ores was 1.32 g/t. The gold leaching rate was 90.91% under the optimal conditions for the following conventional leaching process ...
Jiahong Han +4 more
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, 2019 This study focused on evaluating sodium thiocyanate as an alternative reagent to the conventional cyanidation process for leaching of gold ores. Goldcorp’s Coffee project in Yukon-Canada supplied three mineral samples namely, Supremo Oxide 68151, Supremo oxide 68151, Supremo Composite 72142 for this study.
Yeboah, Sarpomah Roselyn
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Minerals Engineering, 2021 Pyrite and arsenopyrite are known to be the most common gold-bearing sulfide minerals in refractory gold ores. Traditionally, these minerals have been first oxidized by roasting, acidic pressure oxidation or bio-oxidation to release gold, after which the
Riina Ahtiainen, J. Liipo, M. Lundström
semanticscholar +2 more sources
Simulation of leaching process of gold by cyanidation [PDF]
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Sodium Cyanide (NaCN) has been used to recover gold from gold bearing ores. This work aims to develop a simulation model of leaching process by using cyanide solvent for the dissolution of gold by using HSC simulator. The results from this simulation were compared with other researcher which employed Aspen Plus and it shows very
F N Yahya +3 more
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Application of Bio-Oxidation in Leaching of a Low-Grade Primary Gold Ore in Inner Mongolia
Kuangchan zonghe liyong, 2022 Bio-oxidation leaching test was conducted on a low-grade primary gold mine in Inner Mongolia. The acid consumption of ore, cyanidation, bio-oxidation stirred leaching, column leaching, add sulfur and sulfur concentrate to reduce acid consumption , and ...
Yongzhang Jian
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