What is alluvial gold mining?

Alluvial gold ore in the gold mining ship and small open-pit concentrator, generally can only get the rough concentrate of gold. In order to obtain pure alluvial gold, need to further enrichment and separation, this process is called selection.

Selected feed, if only a single alluvial gold as a useful mineral recovery, the use of re-election method can be applied, the application of the selection of equipment has a chute, elution tanks, jigging machines and shaking table and other equipment. If the selected feed in addition to alluvial gold and other heavy sand minerals to be comprehensive recovery, we must use the gold and associated minerals of certain properties, such as specific gravity, magnetic conductivity, electrical conductivity, as well as by the wetting of mercury to be separated. For example, the use of re-election - magnetic separation - electro-election process or amalgamated mercury river and other joint selection process.

Reselection - magnetic separation - amalgamated mercury heavy sand separation process. It is a gold mine in China to use the heavy sand separation process, used to deal with gold mining ship and other methods to obtain heavy sand products. The vast majority of natural gold in this product has been selected on site by artificial panning method, which contains the remaining alluvial gold is a small amount. So the main purpose of treating this ore is to try to obtain ilmenite, monazite, garnet and zircon from it.

One of the mines in China used magnetic separation - re-election - electro-election heavy sand separation test process. It was determined that the recovery rate of various minerals in this process were: 59.59% for zirconium concentrate, 38.77% for rare earth concentrate and 79.2% for titanium concentrate.

What is alluvial gold ore?

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