what is chemical separation in mining

separation techniques mining industry - niedenstein.eu- what is chemical separation in mining ,the chemical physical separation methods used in gold mining. Physical separation techniques depend on the physical properties of the South Africa is a world leader in the gold mining industry.ADVANCES IN COAL CLEANING - Argonne National LaboratoryADVANCES IN COAL CLEANING ... on the geologic conditions and mining technique ... coal cleaning methods are invariably based on physical separation; chemical