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2 139 882

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IPC

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Application

98123719/04, 1998-12-18

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Start date

1998-12-18

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Actual filing date

1998-12-18

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Published

1999-10-20

(72)

Inventor

Chernyshev E.A.Korneev N.N.Govorov N.N.Lavrinenko M.N.Gulevskij V.E.Baranko V.V.Gershberg M.I.Burov V.V.Lisin I.P.

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Holder

Gosudarstvennyj Nauchnyj Tsentr Rossijskoj Federatsii Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Khimii I Tekhnologii Ehlementoorganicheskikh SoedinenijZakrytoe Aktsionernoe Obshchestvo Giproplast

METHOD OF PREPARING BIS (TRIPHENYLSILYL)CHROMATE Russian patent published in 1999 - IPC

Abstract RU 2139882 C1

FIELD: chemical industry. SUBSTANCE: method comprises reacting chromic anhydride and triphenylsilanol in the presence of magnesium sulfate in carbon tetrachloride at elevated temperature and subsequently filtering reaction mixture at elevated temperature and isolating desired crystalline product. Reaction of chromic anhydride and triphenylsilanol is carried out in the presence of alkali metal halide. EFFECT: higher stability and increased yield of the desired product and also simplified process due to shorter process time. 4 cl, 14 ex, 1 tbl

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RU 2 139 882 C1

Authors

Chernyshev E.A.

Korneev N.N.

Govorov N.N.

Lavrinenko M.N.

Gulevskij V.E.

Baranko V.V.

Gershberg M.I.

Burov V.V.

Lisin I.P.

Dates

1999-10-20—Published

1998-12-18—Filed