rare earth ore benefication

Rare earth ore mineral in the crust to form the main, based on rare-earth minerals and associated gangue minerals, and other physical and chemical properties of different rare earth ore beneficiation usually have the following:

1, the radiation processing method

The main use of rare-earth ore mineral and gangue minerals in the different thorium content, using γ-ray concentrator, the rare-earth minerals and gangue minerals separately. Radiation processing method used for pre-selection of rare earth minerals. Currently, this method is not widely used in industry.

2, the gravity separation method

The use of rare earth minerals and gangue minerals of different density sorting. Equipment commonly used in re-election cone concentrator, spiral concentrator, shaking and so on. The use of re-election mainly to the low density of rare earth minerals and quartz, calcite and other gangue minerals of the separation, in order to achieve pre-enrichment purposes or to obtain rare earth concentrate. GF for re-election beach sands production; in rare-earth ore mineral in the veins is sometimes used as a means of pre-enrichment. vibrating screen

3, the magnetic separation

Some have weak magnetic rare-earth minerals. They can be used with other minerals and associated gangue different than the magnetic factor, magnetic field strength of the different magnetic separator to separate rare earth minerals and other minerals. In the coastal sands ore, often with weak magnetic separation of the ilmenite and monazite; intensity magnetic separation can also be used to make monazite and zircon, quartz light mineral separation. In the rare-earth ore mineral veins in order to streamline processes and save flotation flotation agents, sometimes with strong magnetic pre-enrichment of rare earth minerals. With the continuous development of magnetic technology, high intensity magnetic separation will be more widely used rare earth ore beneficiation processes. mobile impact crusher sale

4, the flotation

The use of rare earth minerals and associated physical and chemical properties of the mineral surface differences, the use of flotation to make it with their associated gangue mineral separation obtained concentrate, is the production of rare earth ore vein is widely used in the main beneficiation methods. Mountain Pass rare earth mine in the United States is the production of rare earth ore flotation concentrates. The production of sand on the beach, in the sand for re-use after re-election, are often used to get sand flotation heavier rare earth concentrate. flotation mills for sale

5, the electrostatic separation method

Rare earth minerals are non-good conductor, its conductivity can be used with the associated minerals are different, the use of electrostatic separation method to make good with conductive minerals to be separated. Electrostatic re-election commonly used in the selection of beach sands operations.