Double refractory gold ore (DRGO) not only include ppt levels of gold grains locked in sulfide minerals but also a problematic amount of carbonaceous matter. This causes a significant recovery loss of gold during cyanidation because of the strong affinity of the Au(CN)2− with the carbonaceous matter. Combustion decreases the carbonaceous matter content, but …
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The metamorphic model explaining orogenic gold ore formation has become widely accepted. However, there has been extensive debate regarding whether a ... Close mobile search navigation. Article navigation. ... Kun-Feng Qiu; Fluid evolution and genesis of the Yidinan granitoid-hosted orogenic gold deposit (China). GSA Bulletin 2024; doi: https ...
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A "supergiant" deposit of high-quality gold ore containing an estimated 1,000 metric tons (1,100 US tons) of the precious metal has been discovered in central China, …
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Iron oxide copper gold ore refers to the symbiosis of copper ore and gold ore in gold ore in some form. Its amount is about 10 million to 4 billion tons. IOCG ore contains copper with a grade of 0.2% to 5% and gold with a …
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Flotation–preoxidation–cyanidation methods are used to improve recovery of refractory gold, but the gold recovery is limited to 72.2% after only treatment by the flotation process. 28 The development of oxidation roasting technologies has improved the market prospects of dealing with gold ore and other refractory ores despite the problems ...
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Arsenious and sulphur-bearing micro-disseminated gold ore is a kind of typical refractory Carlin-Type. The gold in Carlin-Type gold ore grains is distributed finely, existing as invisible or submicroscopic gold, encapsulated in arsenopyrite and pyrite. The technical difficulty of treatment Carlin-Type gold ore lies in how to release the fine gold wrapped in pyrite and …
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410083, China Keywords: Double refractory gold ore, Preoxidation, Flotation, Alkaline pressure oxidation. Abstract The treatment process of a low-grade refractory gold ore containing sulfide minerals and carbonaceous matters was studied in this work. The gold extraction of this ore by all-sliming cyanidation was only 11.75%.
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A recent discovery has shaken up the mining industry. A "supergiant" deposit of high-quality gold ore was uncovered in central China. According to Chinese state media, it contains an estimated at 1,000 metric tons (1,100 US tons) of the precious metal.If accurate, this massive reservoir could be the largest known deposit of gold left anywhere in the world.
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A monumental discovery in China's Hunan province has redefined the landscape of global gold mining. Beneath the Wangu gold field in Pingjiang County lies a staggering deposit of gold ore ...
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With its position as the world's largest producer and consumer of gold, China has the enviable position to reap full benefits from the Wangu deposit. In 2023, it produced around …
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Request PDF | On Oct 16, 2023, Saeede Kadivar and others published Assessing the environmental impact of gold production from double refractory ore in a large-scale facility | Find, read and cite ...
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Chinese scientists have uncovered a "supergiant" deposit of high-quality gold ore hidden near some of the country's existing gold mines.
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