With ores of higher gold content , cyanidation is accomplished by vat leaching, which involves holding a slurry of ore and solvent for several hours in large tanks equipped with agitators. For extracting gold from low grade ores, heap leaching
The heap leaching process being employed at Lomati Mine is a commonly used process to extract gold from the ore. Generally, the ore is crushed into fine particles before being heaped and sprayed with a leaching solution which liquefies and separates the gold from the ore.
Much thought and design goes into the making of a heap leach, to derive the best, most economical solution for recovering the gold from the ore. Once the gold has been dissolved in the cyanide, and the ore body has been reasonably depleted of its gold, there are two main processes for recovering the gold from the pregnant cyanide solution.
The tank leaching method is commonly used to extract gold and silver from ore, such as with the PINEER GOLD LEACHING TANKS. AND SUCH TANK LEACHING, SPECIALLY CHOOSE CARBON IN LEACH METHOD FOR ROCK GOLD ORE EXTRACTION.
A slurry of ground ore, water and a weak cyanide solution is fed into large steel leach tanks where the gold and silver are dissolved. Following this leaching process the slurry passes through six adsorption tanks containing carbon granules which adsorb the gold and silver. This process removes 93% of the gold and 70% of the silver.
Leaching, often gold, is the process of extracting a soluble constituent from a solid by means of a solvent. In extractive metallurgy, of gold, it is the process of dissolving a certain mineral from an ore or a concentrate, or dissolving certain constituents from materials such as a calcines, mattes, scrap alloys, anodic slimes, etc., to achieve either one or two purposes ...
June 10, 2020
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