Bosite low-grade gold-containing sulfur concentrate thiourea method for gold leaching, gold ore leaching methods and leaching chemicals

Gold leaching of low-grade gold-containing sulfur concentrate by thiourea method, gold ore leaching method and leaching agent
1. Mineral processing method of placer gold ore
The gold content in placer gold ore is extremely low, so it must be After sorting and purification, the next step of smelting and processing can be carried out. Therefore, the beneficiation of placer gold must include the process of sorting and purification. In actual situations, since there are inevitably some large pieces of waste rock that do not contain gold in placer gold mines, screening this part of waste rock in advance is of extremely important significance for improving the efficiency and processing capacity of mineral processing equipment.
The processing of placer gold ore includes three steps: screening, sorting and purification.
The processing steps for placer gold ore have been determined, but what still needs to be determined is the method to be used to enrich and purify the placer gold ore. As we all know, the specific gravity of gold is much greater than that of sand and gravel, and they have a huge difference in specific gravity. Gold in placer gold mines basically exists in a free state, so the gravity separation method is the simplest and most effective method. In the actual production process, it has also been proved that the gravity separation method is indeed the most effective and simple method for processing placer gold ore.
Purification is to further purify the placer gold that has been enriched to a certain extent to achieve higher quality. This step can be purified using the mercury amalgamation method. The mercury amalgamation method is one of the oldest and most effective methods for purifying placer gold. Internal mercury amalgamation equipment manufactured with modern technology is used to purify gold concentrate from placer gold mine gravity separation, with a recovery rate of over %.
2. Placer gold ore beneficiation equipment
There are three different types of equipment for the three steps of placer gold ore beneficiation, one is screening equipment, the other is sorting equipment, and the third is purification equipment.
The screening equipment for placer gold mines generally uses drum screens. The drum screens have many advantages such as thorough screening, anti-clogging, energy saving, and high efficiency. They are ideal screening equipment for raw gold placer mines.
There are many different gravity separation equipment to choose from, but the most widely used equipment at present is the jig, which has the characteristics of large processing capacity, high recovery rate, energy saving and high efficiency. Environmental protection and other advantages, its recovery rate can generally reach more than %.
The purification equipment is relatively simple. The mercury amalgamation cylinder of the internal amalgamation equipment is used to amalgamate the gravity separation gold concentrate for purification. This purification method has low investment, quick results, and the recovery rate of gold is as high as % or above.
In addition, belt conveyors, vibrating feeders, etc. are all auxiliary equipment and are processed and produced by professional manufacturers. Product quality and life are reliably guaranteed.
3. Characteristics of placer gold ore beneficiation process
The core equipment of this beneficiation process is a jig, and the main separation method is gravity separation. Therefore, this process has the characteristics of a general gravity separation process. : Energy saving, high efficiency and environmental protection.
This process uses mercury amalgamation cylinders for mercury amalgamation purification, which has high purification efficiency, low investment, quick results, and high gold recovery rate. In addition, the mercury paste can be reused and has almost no harm to the environment and workers' health.
This placer gold gravity separation process is currently the simplest, most economical and most effective placer gold beneficiation process. This method is used to process placer gold in large gold mining ships and large placer gold dressing plants.
The main products of the complete set of equipment produced by Henan Bosite Machinery Manufacturing Co., Ltd. are: jaw crusher, hammer crusher, roller crusher, impact crusher, vertical crusher, high-efficiency and energy-saving cone bearings Ball mill, vibrating screen, automatic anti-sand spiral polarizer, high-efficiency energy-saving flotation machine, mining mixing tank, feeder, thickener, mining elevator, mining conveyor, pre-added water ball tray, spiral chute, Ore dressing shaker, ore washing machine and other equipment.
<=_