Method for extraction of beryllium from raw genthelvite (danalite, genthelvite, helvite) and bertrandite (chryosberl, euclase, bertrandite) mineral groups when processing the raw minerals (ores, concentrates)

摘要

The invention relates to non-ferrous metallurgy and can be used for extracting beryllium from genthelvite and bertrandite groups when processing the raw minerals (ores, concentrates) by heap and vat leaching. The objective of the invention is to disclose a method of teaching beryllium from danalite (Fe₈(BeSiO₄)6S₂), genthelvite (Zn₈(BeSiO₄)6S₂), helvite (Mg₈(BeSiO₄)6S₂), chrysoberyl, euclase, and bertrandite, thus expanding the range of raw minerals used for processing and providing more economical production and improved environmental impact via use of an effective reagent at low temperatures by hydrochemical method. The offered method is beneficial both economically and ecologically, as the alternate modern pyrometallurgical method of beryllium extraction has the following drawbacks: emission of toxic gases, high energy requirements, and the need for fireproof materials. The newly developed method is recommended as a basis for the innovative technology of beryllium extraction from genthelvite and bertrandite concentrates and ores.