Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ivb metal
Reexamination Certificate
2003-10-17
2009-02-03
Bos, Steven (Department: 1793)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ivb metal
C423S070000, C423S085000, C423S086000, C423S610000
Reexamination Certificate
active
07485269
ABSTRACT:
A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, separating titanyl sulfate from leach liquor, hydrolysis of the extracted titanyl sulfate, and thereafter calcining the solid phase produced in the hydrolysis step. The process is characterized by multiple stage leaching of the titaniferous material.
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Grazier Philip Ernest
Roche Eric Girvan
Stuart Alan David
BHP Billiton Innovation Pty. Ltd.
Bos Steven
Brinks Hofer Gilson & Lione
Nichols G. Peter
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