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
C423S082000, C423S085000, C423S086000, C423S610000, C423S615000, C423S616000
Reexamination Certificate
active
07485268
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 characterised by controlling the hydrolysis step and forming a selected particle size distribution of hydrated titanium oxides from titanyl sulfate.
REFERENCES:
patent: 3067010 (1962-12-01), Long et al.
patent: 3760058 (1973-09-01), Langmesser et al.
patent: 4275040 (1981-06-01), Davis
patent: 4288415 (1981-09-01), Rahm et al.
patent: 4288416 (1981-09-01), Davis et al.
patent: 4288418 (1981-09-01), Davis et al.
patent: 4986742 (1991-01-01), Denecker et al.
patent: 5277816 (1994-01-01), Watanabe
patent: 5744108 (1998-04-01), Holle et al.
patent: 5821186 (1998-10-01), Collins
patent: 6048505 (2000-04-01), Miller et al.
patent: 6375923 (2002-04-01), Duyvesteyn et al.
patent: 2005/0180903 (2005-08-01), Roche et al.
patent: 2006/0153768 (2006-07-01), Roche et al.
patent: 2006/0177363 (2006-08-01), Roche et al.
patent: 2006/0233686 (2006-10-01), Roche et al.
patent: 2014485 (1990-10-01), None
patent: 1293356 (1991-12-01), None
patent: 2431257 (2002-06-01), None
patent: 05009029 (1993-01-01), None
patent: WO 02/48412 (2002-06-01), None
patent: WO 2004/035841 (2004-04-01), None
patent: WO 2004/035843 (2004-04-01), None
patent: WO 2004035842 (2004-04-01), None
patent: WO 2005038060 (2005-04-01), None
patent: WO 2006105611 (2006-10-01), None
patent: WO 2006105612 (2006-10-01), None
patent: WO 2006105613 (2006-10-01), None
patent: WO 2006105614 (2006-10-01), None
International Search Report of International Application No. PCT/AU03/01385, dated Dec. 15, 2003, 3 pages.
Roche et al., U.S. Application entitled “Titanium Intermediate Processing”, U.S. Appl. No. 11/868,676, filed Oct. 8, 2007.
Roche et al., U.S. Application entitled “Operating Titanium Precipitation Process”, U.S. Appl. No. 11/868,684, filed Oct. 8, 2007.
Roche et al., U.S. Application entitled “Metal Extraction”, U.S. Appl. No. 11/868,689, filed Oct. 8, 2007.
Roche et al., U.S. Application entitled “Titanium Precipitation Process”, U.S. Appl. No. 11/868,703, filed Oct. 8, 2007.
Grazier Ernest Philip
Liu Houyuan
Roche Eric Girvan
Stuart Alan David
BHP Billiton Innovation Pty. Ltd.
Bos Steven
Brinks Hofer Gilson & Lione
Nichols G. Peter
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