Gold Mining Rock Crusher

Gold smelting process is generally as follows: pre-treatment, extraction, recovery, refining. Wherein the ore pretreatment methods include: baking, chemical oxidation, microbial oxidation, other pretreatment methods. Leaching method is divided into physical methods, chemical methods into two categories, physical methods are divided into mercury amalgamation, flotation, gravity separation, cyanidation and chemical methods are divided into non-cyanidation. Method of recovering gold dissolution include: zinc substitution precipitation, carbon adsorption, ion exchange, other recovery methods. Hydrometallurgical refining methods include, including electrolysis, aqua regia method, chlorine method, chlorination, reduction of fire, wet a firing combined method.

A typical method briefly gold mining rock crusher for each process below. Pretreatment of the roasting method. Roasting is arsenic, antimony sulfide decomposition, so that the gold particles are exposed, so that the carbonaceous material inactive. It is one way to treat refractory gold ore of the most classic. Roasting is the advantage of simple process, easy operation, strong applicability, the disadvantage is serious environmental pollution. Auriferous arsenopyrite-pyrite ore roasting of limestone, arsenic can control pollution and sulfur; alkali roasting can be effectively fixed As other toxic substances. Leaching of the gravity separation. Gravity separation is the use of the density difference between gold and gangue gravity separation method, it is the oldest method of recovering gold from gold ore. Gravity separation or extraction process in the beneficiation vein gold deposits, mainly for grinding circuit coarse free gold recovered. Placer gold extraction of the Act dominated sands crude after the election to be re-re-election, magnetic separation, electrostatic separation or joint process Featured composed by these methods, and finally the use of pyrometallurgical obtain a fineness of 85% 92% of the finished gold.

Gold Mining Rock Crusher Work Characteristics

Gold mining rock crusher run stable and reliable performance, process simplification, simple structure, easy maintenance. Production capacity, hammer, long service life. Gold mining rock crusher investment lower than the same size of the traditional craft equipment 35% -50% higher than the same size of output efficiency of traditional craft equipment 35% -50%. Long-running maintenance costs are also lower than the same size of the traditional craft equipment 35% -50%, widely used mechanism for aggregate, highway, railway, water conservancy, airport, construction, cement, refractory, metallurgy and other industries producing high-quality stone.

Gold placer common beneficiation methods

After the primary gold deposit outcrops due to mechanical and chemical weathering, making gold or gold-bearing veins rock cuttings and become gradually broken gold particles and the like. Then, in the handling and sorting action of external forces, so that a large proportion of minerals (such as gold particles) deposited on the hillside, river, lake waterfront local shore, a certain enrichment, having a value of mining industry who would called placer deposits. Placer gold deposit, usually gold dredger mining, hydraulic mining excavator mining and underground (shaft) exploitation, of placer gold deposit in gold dredger mining based, also hydraulic mining excavators and mining. Placer beneficiation process includes preparation work before sorting and sorting operations, set-up job is mainly composed of granular and screening process two components. The main granular ore is mined in the ore particles and clay slimes dissociation, screening is screening the coarse free gold; common device with a flat screen, cylindrical screen cylinder scrubbing machines . Placer sorting mainly gravity separation method, which is significant because on the one hand placer gold ratio (average of 17.50 to 18.0), coarse grain size (typically 0.074 to 2 mm), on the other hand is due to gravity concentration method is relatively simple and economical . Re-election equipment commonly used types of chute, jigger and shaker (commonly used in the selection).

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