2000•Unpublished venueRequires access
Research on gold extraction process for Dongbeizhai refractory gold ore
Zhang De, Uist Baotou
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Abstract
Dongbeizhai gold ore,as a low grade arsenic bearing carbonaceous ore,is a refractory ore.Au recovery is nearly zero by direct cyanidation from ore.The gold concentrate containing Au 18.02 g/t,91.52% recovery can be gained by the process of stage grinding and carrier flotation.Large amount of tailings are discharged.Better results can be obtained by roasting flotation concentrate cyanidation gold extraction process and the recovery of total gold has achieved up to 85.32%.