It has, surprisingly, been found that the problems associated with concentrating a gold bearing sulfide ore by conventional flotation may be significantly reduced by the use of a flotation gas which comprises a lower volume fraction of oxygen gas than is present in ambient air.
18/04/2016· Two examples are the large low grade ore bodies which require very fine grinding and refractory sulphides which have to be concentrated and roasted to expose gold to cyanide action. A Flowsheet to recovery gold from sulfide ores. There are many arrangements and combinations using flotation in conjunction with treatment of gold ores.
concentrating crushed gold ore rütti garage gold processing mining and concentrating britannica. these deposits are mined, crushed and ground, and then concentrated first by gravity separation to recover coarse particles of native gold before being subjected to froth flotation to concentrate the sulfide mineral fraction that contains the gold.
17/03/2020· Because flotation can maximize the enrichment of gold into sulfide concentrates. According to the nature of high sulfide gold ore, sulfide suppression flotation process is preferred. The sulfide suppression flotation process preferentially recovers gold, which aims to maximize the recovery of gold and sulfide.