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:
Oct. 06, 2009
Filed:
Mar. 16, 2007
Houyuan Liu, Shortland, AU;
Alexey Duarte, Perth, AU;
Wolf Meihack, Brisbane, AU;
Ivan P. Ratchev, Jesmond, AU;
Houyuan Liu, Shortland, AU;
Alexey Duarte, Perth, AU;
Wolf Meihack, Brisbane, AU;
Ivan P. Ratchev, Jesmond, AU;
BHP Billiton SSM Technology Pty Ltd., Perth, AU;
Abstract
A process for the production of ferro-nickel or nickel matte from a product liquor solution containing at least nickel, cobalt, iron and acid soluble impurities, said process including the steps of: (a) contacting the product liquor solution () containing the nickel, cobalt, iron and acid soluble impurities with an ion exchange resin (), wherein the resin selectively absorbs nickel and iron from the solution leaving the cobalt and the acid soluble impurities in the raffinate (); (b) stripping the nickel and iron from the resin with a sulfuric acid solution to produce an eluate () containing nickel and iron; (c) neutralising the eluate to precipitate a mixed nickel iron hydroxide product (); and (d) reducing and smelting the mixed nickel iron hydroxide product to produce ferro-nickel () or nickel matte ().