Manufacture of titanium dioxide by the sulphate process

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

C - Chemistry, Metallurgy

01

G

23/263

C01G 23/053 (2006.01) C01G 23/047 (2006.01)

Patent

CA 1041735

ABSTRACT OF THE DISCLOSURE 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 transfer- ming titanium tetrachloride into a compound of the formula Ti(OH)xCly, 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 vapour phase, and contacting the reaction products with an aqueous solution of sodium hydroxide to from an aqueous suspension of titanium hydroxide having a TiO2 content of from 10 to 30 grams/liter and a pH value of from 3 to 4.

236467

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