Process for the production of titanium oxide
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United States of America Patent
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-
Jul 18, 2000
Grant Date -
N/A
app pub date -
Mar 24, 1997
filing date -
Apr 13, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for production of titanium oxide comprises digesting an ilmenite ore in which at least 92% by weight of the iron which is present is in the ferrous form, if necessary adding a reducing agent and subsequently precipitating hydrous titanium oxide. When a reducing agent is added the amount used is equivalent to less than 4.0% by weight metallic iron calculated with respect to ilmenite ore. The process enables an increased throughput on a pigment plant and less co-product in the form of iron compounds is produced.
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