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2 165 889

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C1

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IPC

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Application

99120408/12, 1999-09-28

(24)

Start date

1999-09-28

(22)

Actual filing date

1999-09-28

(45)

Published

2001-04-27

(72)

Inventor

Shundikov N.A.Laukart N.F.Kurnosenko V.V.Firstov G.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Titano-Magnievyj Kombinat"

METHOD OF PREPARING TITANIUM DIOXIDE Russian patent published in 2001 - IPC

Abstract RU 2165889 C1

FIELD: inorganic chemistry, more particularly preparation of titanium dioxide by vapor- phase oxidation of halides. SUBSTANCE: natural gas and air are burned out in furnace. Water is added to combustion products in amount of up to 20% exceeding stoichiometric amount required to react with titanium tetrachloride vapors. Aqueous gas mixture is fed at rate of 400-1500 cubic m/h perpendicular to movement of titanium tetrachloride vapors. Titanium tetrachloride to aqueous gas mixture ratios is 1:(2-4). Combustion and thermohydrolysis processes are carried out at vacuum gauge pressure. EFFECT: improved coloring properties of titanium dioxide. 3 cl

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RU 2 165 889 C1

Authors

Shundikov N.A.

Laukart N.F.

Kurnosenko V.V.

Firstov G.A.

Dates

2001-04-27—Published

1999-09-28—Filed

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