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:
Sep. 28, 2010
Filed:
Nov. 04, 2004
Vaikuntum I. Lakshmanan, Mississauga, CA;
Ramamritham Sridhar, Mississauga, CA;
G. Bryn Harris, Montreal, CA;
George Puvvada, Markham, CA;
Vaikuntum I. Lakshmanan, Mississauga, CA;
Ramamritham Sridhar, Mississauga, CA;
G. Bryn Harris, Montreal, CA;
George Puvvada, Markham, CA;
Process Research Ortech, Inc., Ontario, CA;
Abstract
A process for leaching a value metal from a titanium-bearing ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising a chloride and hydrochloric acid is disclosed. The leaching conditions are such that titanium is leached and remains in solution. The temperature is maintained at less that 85° C., and the concentration of hydrochloric acid is preferably less than 20% (mass ratio). The preferred chloride is magnesium chloride. The lixiviant may contain oxidant e.g. sodium chlorate or chlorine.