GOLD refers to gold or gold ore mining, gold mining refers to the place made gold ore by mining operations, while gold ore refers to the mineral aggregates with a certain gold content industry and can be utilized. Obtained by sorting Gold is a rare and precious metal stable value, it has been a symbol of wealth and status.

In addition to our most provinces outside Shanghai has a gold mine distribution, origin and distribution of the main deposit: Shandong, Henan, Guizhou, Heilongjiang, Shaanxi, Guangxi, Yunnan, Liaoning, Hebei, Xinjiang, Sichuan, Gansu, Inner Mongolia, Qinghai, Anhui and other provinces, including Shandong, China accounted for the majority of gold production. Gold placer gold deposits and rock are two gold mining processing plant often handled, where gold placer pretreated washing off the mud and then re-election method can get gold crude gold mine, and the gold mine rock by crushing, grinding to make the gold particles monomer dissociation, and then through a certain gold processing technology to achieve separation. GOLD ROCK conventional sorting process are: single amalgamation process, amalgamation - the joint process of re-election, re-election (amalgamation) - cyanidation joint process, a single flotation process, amalgamation - flotation process, full of mud cyanide process, flotation - re-election joint process, heap leaching.

Common gold processing Process description:

First, the crushing and screening stage

Typically GOLD content is low, Khenpo fine particle size, complex composition, crushing and screening procedures commonly used in the industry to three sections of a closed circuit mainly through rough broken, broken, crushing, sieving crushing the mineral to the appropriate size . The three sections of a closed-circuit Common flow is as follows:

Second, the grinding stage

GOLD ROCK grinding job usually a period or lattice-type ball mill + overflow type ball mill grinding two paragraphs, the second paragraph of grinding operations and spiral classifier or hydrocyclone constitute closed circulation, in order to ensure the grinding fineness. Traditional mill wear faster, energy consumption and other shortcomings, the large ball mill mining machine manufacturers a series of transformation, such as the use of new wear-resistant rubber lining, change the sliding Rolling bearings, mill and other large-scale measures to improve mill operating rate and also extend the useful life of equipment, for enterprises to create economic benefits. Common gold grinding equipment as shown below:

Third, the beneficiation stage

Common rock gold mine beneficiation process are: single mercury amalgamation, re-election (amalgamation) + cyanidation sorting method, a single flotation method, all slime cyanidation, heap leaching method.

Single amalgamation method: This process is suitable for processing quartz vein containing coarse native gold deposits and oxide ores, the mercury process utilizes selective wetting of the gold particles, when the mercury diffusion epigenetic gold grains become gold mercury in solid solution, and finally to remove mercury and gold amalgam method by heating. A lot of practice shows that using mercury amalgamation early part of the recovery of free gold particles can greatly reduce the loss of the gold particles, so amalgamation law still occupies a very important position.

Reselection (amalgamation) + cyanidation sorting method: This process combined for processing gold-bearing quartz veins of oxidized ores, ore re-election to another amalgamation, amalgamation or direct ore, coarse ore sorting income, in mine tailings cyanidation. Recycling gold leaching solution Finally CIP adsorption or resin exchange method.

Single flotation method: The process used to deal with Khenpo fine particle size, good floatability of sulfide bearing quartz vein gold ore and polymetallic sulfide ores and the carbon (graphite) ores.

All slime cyanidation: This gold mine beneficiation process is suitable for fine-grained or micro-fine gold in quartz veins and distribution, the high degree of oxidation of the ore, and does not contain Cu, As, Sb, Bi and carbonaceous material. Cyanide leaching process consists of leaching gold mine, your solid-liquid separation, resolve your liquid gold mud smelting composition. All slime cyanidation extraction of gold and silver is the most effective way, but the cyanide used in the process is highly toxic substances, the environment and the human body great harm, must strictly good management use.

Heap leaching: cyanide heap leaching gold extraction process is one, should be the main treatment of low grade, gold bearing ore processing capacity. It has a large capacity, low investment, simple technology, is an effective way to deal with low-grade ore.