METHOD OF PREPARATION OF COMPONENTS FOR MAKING OPTICAL AND SEMICONDUCTOR MATERIALS Russian patent published in 2000 - IPC

FIELD: manufacture of materials for making glass, optical fibers and semiconductors. SUBSTANCE: starting mixture containing silicon tetrachloride or germanium tetrachloride is subjected to isotope enrichment which is effected by gas centrifuging at 5 to 45 C. Enrichment is conducted by one of isotopes Ge⁷⁰ or Si²⁸. Introduction of pure chloride components for optical or semiconductor materials makes it possible to obtain atomically homogeneous chlorides, thus enhancing heat conductivity coefficient, reducing noise, increasing response of semiconductors and reducing absorption of optical materials. EFFECT: minimum expenses for realization of method due to used of chlorides of available technology. 4 cl, 2 tbl