Experimental study of gold ore dressing with venezuela
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The test according to the test requirements, the whole mud cyanidation leaching and flotation test key, and gold concentrate on Flotation of cyanidation leaching experiment.
The process type ores are sulfide bearing quartz vein type. Mineral composition is relatively simple, the main metal mineral is pyrite, sphalerite, chalcopyrite, hematite etc.. Non metallic mineral alteration, mainly quartz, diopside, talc, chlorite etc.. There are also small amounts of zoisite.
The gold is mainly electrum, a small amount of gold and silver ore.
The distribution of gold in the ore is not uniform, fine grain. Gold and pyrite, quartz is most closely related.
The test results to achieve the desired purpose, completed the test requirements, test goal, can be used as a debug index basis.
Test the beneficiation indexes are as follows:
A, flotation technical index
The gold recovery rate: 97.52%, the gold concentrate grade of 128.87 g / ton, silver grade of 69.19 g / T, the recovery rate of silver is 88.63%.
Two, whole mud cyanidation leaching technology index
The leaching rate of gold: 97.45%, leaching slag grade: 0.32 grams / ton.
Three, cyanide leaching of gold concentrate on test technical index
1, direct cyanidation leaching rate: 90.77%.
2, grind again: cyanide leaching rate is 96.88%.
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