STRONTIUM CARBONATE MANUFACTURE PROCESS Russian patent published in 2004 - IPC

FIELD: inorganic compounds technology. SUBSTANCE: strontium carbonate suitable for use in electronics, radio industry, high-temperature semiconductor engineering, as insecticides, and for antifriction alloys is prepared by treating calcium and strontium chloride- containing solution first with sodium or ammonium sulfate at 15-30 C and pH 1.5-3.0 and then, after washing and separation of strontium sulfate precipitate, treating the latter with sodium or ammonium carbonate for 30-45 min at 60-80 C. EFFECT: simplified technology, reduced undesired impurities, and increased content of base material in product. 1 dwg, 1 tbl