Biological oxidation pretreatment process of Bosite gold ore, leaching process of arsenic-containing refractory gold concentrate

Bosite gold ore biological oxidation pretreatment process, arsenic-containing refractory gold concentrate leaching process
The beneficiation method of placer gold ore is relatively simple, and can be obtained through simple screening, gravity separation, selection and other processes Very good mineral processing effect, the selection of corresponding alluvial gold equipment according to specific conditions will have a greater impact on the alluvial gold mineral processing indicators.
The separation of placer gold mines mainly includes screening, gravity separation, purification and other processes.
Screening of placer gold mines is usually carried out by drum screens with good screening effect and thorough screening. According to the different mud content and the situation of bonding and agglomeration, you can choose to add water in the drum screen screening process to promote Disintegration makes the monomer gold free, which is conducive to gravity separation and recovery.
The screened placer gold material can enter the gravity separation process. Since the gold content in placer gold ore is extremely low, efficient, energy-saving and environmentally friendly gravity separation equipment must be used as roughing equipment. Gravity separation of placer gold ore It is mainly carried out using chute, jig and other equipment. Chute is mainly used for roughing and enrichment of placer gold ore with extremely low gold content. Its loss rate is high and the operation is complicated, but its cost is very low and the equipment investment is small. Jig machine It has large investment, continuous production, simple operation and high recovery rate. It is mainly used for roughing and enrichment of placer gold ore. The gold content of the coarse concentrate produced by the jig is also much higher than that produced by the chute.
The placer gold coarse concentrate obtained by the gravity separation equipment still contains other metals and impurities. In order to further increase the gold content for smelting, the coarse concentrate is generally purified by gravity separation or mercury mixing. This purification process mostly uses purification equipment such as shakers and mercury amalgamation cylinders. The shaker is the most common gravity separation equipment. Its concentrate grade is high, but the recovery rate is low and the processing capacity is small. It can only be used Selected. The mercury amalgamation cylinder has a high recovery rate, but the equipment operation is slightly complicated, and it is mostly used for the purification of small gold mines.
Henan Bosite Machinery Manufacturing Co., Ltd. specializes in the production and supply of molybdenum ore beneficiation equipment, lead-zinc ore beneficiation equipment, magnetite beneficiation equipment, placer gold ore beneficiation equipment, copper ore beneficiation equipment, limonite beneficiation equipment, gold Ore beneficiation equipment, steel slag iron beneficiation equipment, river sand iron beneficiation equipment, hematite beneficiation equipment, etc. If you have any needs for mineral processing equipment, please contact us: