· What are the main benefits of using optical sorting equipment for dry beneficiation? 1. Effectively reduce processing costs and improve product coal quality. The gangue is discharged in advance, which effectively reduces the processing cost of .
Dry beneficiation of Slovakian coal ScienceDirect. Sep 19, 2001· Electrostatic beneficiation of coal to remove minerals and sulfur has been investigated widely as an alternate to the expensivebustion cleaning technologies,,,,,,,,,, .Triboelectrostatic beneficiation of coal is a dry method that does not have the disadvantages of wet coal cleaning, subsequent drying, .