The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2008
Filed:
Apr. 15, 2005
Eric Girvan Roche, Shortland, AU;
Alan David Stuart, Shortland, AU;
Philip Ernest Grazier, Shortland, AU;
Sarah Nicholson, Ripley, AU;
Eric Girvan Roche, Shortland, AU;
Alan David Stuart, Shortland, AU;
Philip Ernest Grazier, Shortland, AU;
Sarah Nicholson, Ripley, AU;
BHP Billiton Innovation Pty Ltd., Melboune, Vic, AU;
Abstract
A sulfate process for producing titania from titaniferous material is disclosed. The process includes precipitating titanyl sulfate from leach liquors containing acidic solutions of titanyl sulfate. The process is characterised by: (a) multiple stage leaching to produce leach liquors containing acidic solutions of titanyl sulfate; (b) using depleted leach liquor from a titanyl sulfate precipitation reactor in the leach steps; and (c) controlling acid concentration in the leach steps to avoid premature hydrolysis and premature precipitation.