发明名称 |
METHOD OF PRODUCING SILICON OXIDE COMPOUNDS DOPED WITH ALUMINIUM AND RARE-EARTH ELEMENTS |
摘要 |
<p>FIELD: chemistry. ^ SUBSTANCE: invention relates to chemistry and can be used to produce silicon oxide compounds doped with aluminium and rare-earth elements which are used in quartz and optical glass manufacturing and in fibre optics for making laser and luminescent glass. A solution of salts of rare-earth elements and an aluminium-containing compound are simultaneously added to an alkaline solution of tetraalkoxy silane with pH 7.5-9.0. The reaction mixture is intensely stirred at temperature 10-60C. The formed sol is evaporated at temperature not higher than 100C to a powdered state. The salts of rare-earth elements used are corresponding nitrates, chlorides or acetates. Isopropylate or aluminium fluoro-butylate is used as the aluminium-containing compounds. ^ EFFECT: invention enables to obtain highly-pure homogeneous powder not containing carbonaceous inclusions. ^ 4 cl, 4 ex</p> |
申请公布号 |
RU2436731(C1) |
申请公布日期 |
2011.12.20 |
申请号 |
RU20100121086 |
申请日期 |
2010.05.26 |
申请人 |
ROSSIJSKAJA FEDERATSIJA , OT IMENI KOTOROJ VYSTUPAET MINISTERSTVO OBRAZOVANIJA I NAUKI ROSSIJSKOJ FEDERATSII;FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "GOSUDARSTVENNYJ ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO-ISSLEDOVATEL'SKIJ INSTITUT KHIMICHESKIKH REAKTIVOV I OSOBO CHISTYKH KHIMICHESKIKH VESHCHESTV" |
发明人 |
GRINBERG EVGENIJ EFIMOVICH;ISKHAKOVA LJUDMILA DMITRIEVNA;EGOROVA OL'GA NIKOLAEVNA;VEL'MISKIN VLADIMIR VLADIMIROVICH |
分类号 |
C01B33/14 |
主分类号 |
C01B33/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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