Purification of titania

Details Purification of titania Purification of titania

2002-08-09

2011-12-06

Ward, Jessica L (Department: 1735)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

Reexamination Certificate

active

08071069

ABSTRACT:
The invention relates to a process for the purification of titania by treating the titania with an aqueous solution having one or more ammonium compounds at elevated temperatures, separating the titania from the aqueous solution, drying the titania and, optionally, calcining the dried titania. More especially the invention relates to the removal of sulphur (mainly present in the form of sulphate compounds) from the titania. The titania purified according to the above process is especially suitable for use as a catalyst carrier.

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Ullmann's Encyclopedia of Industrial Chemistry, 5thEdition, vol. A7, pp. 308-309.
Ullmann's Encyclopedia of Industrial Chemistry, 5thEdition, vol. A20, pp. 271-281.

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