FIELD: mining industry and industrial inorganic synthesis.
SUBSTANCE: invention relates to production of zirconium compounds and may be used for preparation of silicon fluoroxide compounds useful as catalysts in production of organosilicon compounds and polymers. Zircon concentrate processing comprises fluorination thereof with elementary fluorine used in excess of stoichiometrically needed amount, processing of emission gases while reusing unreacted fluorine and performing perhydrolysis of silicon tetrafluoride formed in the fluorination process. Emission gasses accompanying fluorination process are supplemented by oxygen and brought into reaction with hydrogen at molar ratio SiF4 : F2 : O2 : H2 = 1:1:(5-9):11. Content of fluorine oxide compounds of silicone obtained are changed by varying proportion of oxygen in indicated gas mixture.
EFFECT: simplified processing technology and enabled preparation of fluorine-alloyed silicon oxide compounds.
5 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PROCESSING ZIRCONIUM CONCENTRATE | 0 |
|
SU1754659A1 |
| TETRAFLUOROSILANE PRODUCTION PROCESS, METHOD FOR ASSAYING IMPURITIES IN TETRAFLUOROSILANE, AND GAS BASED THEREON | 2002 |
|
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|
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|
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| TREATMENT OF CHEMICAL FEEDSTOCKS | 2012 |
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| METHOD OF PREPARING HIGH-PURITY SILICON POWDER FROM SILICON PERFLUORIDE WITH SIMULTANEOUS PREPARATION OF ELEMENTARY FLUORINE, METHOD OF SEPARATING SILICON FROM SALT MELT, SILICON POWDER AND ELEMENTARY FLUORINE OBTAINED BY INDICATED METHOD, AND SILICON TETRAFLUORIDE PREPARATION PROCESS | 2004 |
|
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| METHOD OF PRODUCTION OF AGENT SELECTED FROM SERIES: BORON, PHOSPHORUS, SILICON AND RARE-EARTH METALS (VERSIONS) | 2005 |
|
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| METHOD OF OBTAINING ZIRCON DIOXIDE | 2013 |
|
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| METHOD OF CONVERTING URANIUM HEXAFLUORIDE TO URANIUM TETRAFLUORIDE AND ANHYDROUS HYDROGEN FLUORIDE | 2015 |
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RU2594012C1 |
