2015年10月8日星期四

Gold cyanide extraction process improvement

As with cyanide leaching solution to extract gold cyanide is called gold extraction process, it is the main method of modern extracted from ore or concentrate in gold.
Basic steps of:
Cyanidation gold extraction process include: cyanide leaching, leaching pulp washing filter, pulp cyanide solution or cyanide gold extraction and smelting finished a few basic steps.
Process Improvement
1, used oxidant (oxygen or oxide) and extending oxygenase CIL process in the leaching process , such as epoxy resin extraction and the like. The benefits of using secondary oxidant: First, improve gold, silver leaching rate; second is to accelerate the leaching rate, shorten the leaching time; third is to reduce cyanide consumption, reduce the amount of lead nitrate. Our Longtoushan Gold leaching using help make the leaching rate increased by 4.31%. Secondary oxidant as the best technology to optimize applications have cyanide process, widely promoted around the world.
2, the use of ammonia - cyanide leaching of copper and gold ore system of gold and copper ore, copper concentrate containing cyanide leaching, the technology will show the strong vitality.
3, Edging leaching process can strengthen the leaching effect. Such as the recent Shanxi Bureau of Geology and Geological Team 216 TW-type tower mill using dip machine combined arsenic refractory gold concentrate is edging leaching, processing capacity of 30 tons / day, in the grinding fineness of 95% to 98% - Under conditions of 400 mesh, the gold leaching rate increased by 8%. If you use dip machine mill tower implement new technology edging dipped in gold mines can promote the use of cyanide gold extraction process would be a major innovation.

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