The introduction of gold cyanidation in beneficiation process

Since the 1960s, in order to promote the development of the national economy and large-scale develop the mineral gold, in some mines has intermittent mechanical agitation cyanidation mentioning arts and continuous stirred cyanidation mention arts to replace the infiltration cyanidation mention art.
The cyanidation mention art is contemporary major process for extracting gold from ore or concentrate. Cyanidation mention arts includes: cyanide leaching, leaching pulp cleaning, filter, gold extraction and smelting several fundamental processes. China's gold mines existing cyanidation plant take two types of mentioning the art processes and technologies. One is use dense machine hold continuous countercurrent washing, use zinc to replace the so-called general orders cyanidation that used to precipitate recovery of gold (CCD and CCF), and the other way do not have to filter cleaning, it uses activated carbon indirectly adsorb recovery gold from cyanide without filtering, that is the CIP process (CIP method and the CIL law).
General orders cyanidation arts in charge of the different materials has two ways: one is cyanidation plant that in charge of the flotation gold concentrate or in charge of amalgamation or the re-election of the tailings. This process is used in large state-run mines. As Hebei Jinchangyu; Wulong, Henan Yangzhaiyu; Henan Zhaoyuan, Metro Jiaojia, Island Gold. Another is gold extraction plant in charge of argillaceous oxide ores, mud agitation cyanidation., such as Jilin Trench; Heilongjiang Tuanjiegou; Anhui Newbridge gold and silver ore, and other mines.
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