At start up, the copper concentration of the ore feed was about 0.4% Cu and the cyanide consumption was about 4 kg/t ore. During the first year, copper in the ore feed gradually increased, as did the cyanide consumption, until by July 2014, the ore was running at 0.65% Cu and the cyanide consumption had reached around 7 kg/t ore.
Flotation Process Thickener For Ores New Flotation is widely used to concentrate copper lead and zinc minerals which commonly accompany one another in their ores many complex ore mixtures formerly of little value have become major sources of certain metals by means of the flotation process this article was most recently revised and updated by chelsey parrottsheffer research editor.
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A mechano chemical process called Rapid Oxidative Leach® is the gamechanger for miners struggling to extract copper and gold from low grade ores. The technology leaches 97 99 percent copper directly on site in six to eight hours, from concentrates as low as 5 percent copper. In gold, ROL has the potential to unlock the value of undeveloped refractory gold deposits with less than 3 g/t gold head grade.
The common reagents for copper ore flotation are xanthates as collector, pine oil as frother, sodium cyanide as depressant, and lime to maintain slurry alkalinity. The concentrate in the form of froth and slurry contains +20% copper. It is thickened in a rake type unit from a level of 30% solid content to 60%.
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Bulk Flotation. Both the copper and moly sulfide ores together float in rougher flotation cells, then cleaner column cells, and often scavenger cells. These groups of flotation cells work together to give a high total yield of the bulk ore, which is sent on to be thickened. Tailings Thickening / Dewatering
Flowsheet for treatment of Copper Sulfide ores rich in minerals such as chalcopyrite with gold and silver as well as arsenopyrite The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60 65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.
Thickener can be widely used for thickening slime, waste water, and waste residue in metallurgy, mining, chemical industry, building materials, and environme...
June 10, 2020
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