Manufacture of titanium dioxide by the sulphate process using nu

Details Manufacture of titanium dioxide by the sulphate process using nu Manufacture of titanium dioxide by the sulphate process using nu

1975-09-29

1977-05-03

Thomas, Earl C.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423612, 423615, 423462, C01G 2304

Patent

active

040215334

ABSTRACT:
A solution of active nuclei for the hydrolysis of titanium sulphate and for the rutilisation of titanium dioxide in the manufacture of titanium dioxide in tutile form in the method via sulphate is prepared by transforming titanium tetrachloride into a compound of the formula Ti(OH).sub.x Cl.sub.y, wherein x ranges from 1 to 3, y from 3 to 1 and x + y is equal to 4 by contact with steam in the vapor phase, and contacting the reaction products with an aqueous solution of sodium hydroxide to form an aqueous suspension of titanium hydroxide having a TiO.sub.2 content of from 10 to 30 grams/liter and a pH value of from 3 to 4.

REFERENCES:
patent: 1931380 (1933-10-01), Haber et al.
patent: 1967235 (1934-07-01), Ferkel
patent: 3253889 (1966-05-01), Wildt et al.
patent: 3310377 (1967-03-01), Stern et al.
patent: 3481703 (1969-12-01), Zirngibl
patent: 3862297 (1975-01-01), Claridge et al.

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