Rare-Earth Ore Processing

Rare-earth metals are widely used in many areas, such as electronic, petroleum chemical industry, metallurgy, machinery, energy, light industry, environmental protection and agriculture. The application rare earth can produce fluorescent material, rare earth metal hydride battery materials, electric light source materials, permanent magnetic materials, hydrogen storage material, catalytic materials, precision ceramic material, laser materials, superconducting materials, magnetostrictive material, magnetic cooling material, magnetic optical storage material, optical fiber materials, etc.

Separation is often used for rare-earth ore processing. The different density of rare earth minerals and gangue minerals is used to do separation. Commonly used gravity separation equipments are: cone concentrating machine, spiral concentration machine, shaking table, etc. High efficiency concentrating machine can do coarse concentrating, fine concentrating and scavenging in one machine set. Spiral chute machine is that a chute is bent into heliciform around the vertical axis. To improve the quality of rare earth mineral heavy product, several watering points are set in inner edge, called washing water. The washing water in inner edge can rush out part of light minerals, which is mixed in the heavy product. So the quality of the concentrates can be improved. The tailings are discharged by the end of the bottom slot. Shaking table is gravity separation equipment that used to select fine grain materials, such as rare earth ores. Longitudinal reciprocating motion of the bed surface can be realized by crank connecting type transmission mechanism.

The main machines applied in rare earth ore dressing included the separator, the high efficiency concentrator, spiral chute, and the shaking table. Henan Hongxing Mining Machinery Co., Ltd develops the mining equipments adopting advanced techniques and many years’ experiences.

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