METHOD FOR PREPARING TITANIUM DIOXIDE Russian patent published in 2005 - IPC

Abstract RU 2255047 C1

FIELD: inorganic chemistry, chemical technology.

SUBSTANCE: invention relates to technology for preparing titanium dioxide. Method for preparing titanium dioxide involves electrochemical oxidation of metallic titanium in sodium hydroxide alkaline solution with the concentration 45-46.5 wt.-% at density of alternating sinusoidal current of industrial frequency 1.5-2.0 A/cm²and temperature 70-90°C and thermal treatment at 110-900°C. Invention provides enhancing quality of product due to diminishing particle sizes and elevating specific surface square.

EFFECT: improved method for preparing.

1 tbl, 8 ex

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RU 2 255 047 C1

Authors

Korobochkin V.V.

Khanova E.A.

Zhdanova N.V.

Dates

2005-06-27—Published

2004-04-06—Filed