Method for extracting gold from auriferous ores through potassium ferricyanide
A technology for potassium ferricyanide and gold ore is applied in the extraction field to achieve the effects of less environmental pollution, less equipment requirements and saving gold leaching cycles
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[0015] Example: The process of extracting gold from potassium ferricyanide:
[0016] A flotation refractory gold concentrate in Sichuan (including 58.5g / t gold, 36.85% sulfur, 7.45% arsenic, and 1.04% carbon) was ground to 0.074mm; roasted at a certain temperature and time; Add 60ml of K to the calcined sand 3 Fe(CN) 6 5%, CaO 2 It is 3g / L alkaline leaching solution, after leaching for a certain period of time at normal temperature, it is filtered to obtain a noble solution with a gold leaching rate of 94.5%, and the precious solution is recovered by metal reduction.
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