Methods thermoadhesive

Use of specific forms of radiant energy, infrared, ultraviolet, dielectric heating, etc., can allow specific separations to be made. The separation of clear and colored grains of glass and the separation of different metals are possible apphcations of the thermoadhesive method being considered in the field of solid-waste processing. 

Other Methods of Beneficiation. Analogous to the triboadhesive technique of separation is the thermoadhesive method described in [328], based on the fact that different particles of the original mineral are heated differently when exposed to infrared radiation specifically, opaque particles will be heated more than transparent particles. If a mineral that has thus been heated is fed into a belt covered with a polystyrene resin, the particles that have been heated to a temperature corresponding to plastic flow of the resin will adhere to the surface since the layer is tacky with respect to these particles the cooler particles will not adhere. This technique has been used in commercial treatment of rock salt to remove dolomite and anhydrite (2-5% impurities) the capacity of such a unit is one metric ton per hour, with a polystyrene resin consumption of 50 g per metric ton of product. 

---

See also in sourсe #XX -- [ ]

---