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Application

99119878/12, 1999-09-16

(24)

Start date

1999-09-16

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Actual filing date

1999-09-16

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Published

2000-12-27

(72)

Inventor

Vinogradov V.V.Bylkov A.A.

(73)

Holder

Vinogradov Viktor VladimirovichBylkov Aleksandr Aleksandrovich

METHOD OF PREPARING RICE HUSK FOR HIGH-PURE SILICON DIOXIDE PRODUCING Russian patent published in 2000 - IPC

Abstract RU 2161124 C1

FIELD: chemical industry. SUBSTANCE: invention relates to production of amorphous silicon dioxide. Method of preparing rice husk for production of high-pure amorphous silicon dioxide involves rice husk sifter, collection and removal of floated particles after each husk washing out in cold and hot water, husk squeezing under pressure 0.01-10 MPa after washing out in hot water or after washing out in acid solution. Then after squeezing washing out in cold water, acid solution and then in hot and cold distilled water is carried out. Method provides the complete removal of husk from organic components. EFFECT: improved method of preparing. 1 tbl

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RU 2 161 124 C1

Authors

Vinogradov V.V.

Bylkov A.A.

Dates

2000-12-27—Published

1999-09-16—Filed

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