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2 450 969

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(51)

IPC

C01B33/107(2006-01-01)

(21) (22)

Application

2010145050/05, 2010-11-08

(24)

Start date

2010-11-08

(22)

Actual filing date

2010-11-08

(45)

Published

2012-05-20

(72)

Inventor

Shchelkonogov Anatolij Afanas'EvichShchelkonogov Maksim Anatol'EvichMal'Tsev Nikolaj AleksandrovichMal'Tsev Aleksandr Nikolaevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Magnij"

METHOD OF PRODUCING TETRACHLOROSILANE Russian patent published in 2012 - IPC C01B33/107

Abstract RU 2450969 C1

FIELD: chemistry.

SUBSTANCE: method involves chlorination of amorphous silicon dioxide in the presence of carbon, cooling and condensation of vapour. Amorphous silicon dioxide is chlorinated in a molten medium of potassium and sodium chlorides. The amorphous silicon dioxide is a product of leaching serpentinite mineral with hydrochloric acid. Liquid tetrachlorisilane is fed for removal of impurities.

EFFECT: ensuring uniform distribution of heat in the chlorination apparatus and low content of AlCl₃ and FeCl₃ impurities in the end product.

12 cl, 1 ex

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RU 2 450 969 C1

Authors

Shchelkonogov Anatolij Afanas'Evich

Shchelkonogov Maksim Anatol'Evich

Mal'Tsev Nikolaj Aleksandrovich

Mal'Tsev Aleksandr Nikolaevich

Dates

2012-05-20—Published

2010-11-08—Filed