METHOD FOR PROCESSING DIAMOND-CONTAINING MINERAL CONCENTRATES AND FOR CHEMICALLY CLEANING THE DIAMOND SURFACES

摘要

The invention relates to mineral dressing and can be used by diamond-mining companies. The inventive method consists in loading and chemically enriching a concentrate and in cleaning and unloading a target product. The concentrate enrichment is carried out by single or several treatments in an acid or acids, and afterwards in an alkali or in an alkali mixture by heating it up to a temperature ranging from 900 to 1000 °C and holding and agitating in an inert gas atmosphere at said temperature. Said invention makes it possible to increase the diamond cleaning degree.