METHOD FOR EXTRACTION OF DIAMONDS FROM A DIAMOND-CONTAINING DETONATED CHARGE

摘要

A method for extraction of diamonds from a diamond-containing detonated charge provides for treating the charge with an oxidizing mixture of sulphuric and nitric acids at a temperature of 230-305 DEG C. The content of the nitric acid in the oxidizing mixture amounts to 5-40 per cent by weight. The weight ratio between the diamond-containing charge and the acid mixture is 1:25-50.