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:
Mar. 28, 2000
Filed:
Jun. 24, 1998
Andrew Newell, Chatswood, AU;
Walter Hoecker, Rozelle, AU;
BOC Gases Australia Limited, New South Wales, AU;
Abstract
A method for reducing both reagent consumption and scale formation in a mineral separation circuit employing sulfoxy compounds as reagents. The method involves introducing into the mineral separation circuit a non-oxidizing gas in a quantity sufficient to reduce the degree of oxidation of the sulfoxy radical. Preferably the gas is introduced during the reagent conditioning and flotation stages, the stages where the presence of dissolved oxygen in a slurry is most likely to create the conditions conducive to oxidation of the sulfoxy radicals which result in reagent consumption and scale formation problems. The process is suitable for a wide range of mineral separation circuits which use sulfoxy reagents for the separation of sulfidic minerals including chalcopyrite, pentlandite, pyrite, sphalerite, pyrrhotite or galena.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile