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.:

US 7753212 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 13, 2010

Filed:

Sep. 16, 2003
Applicants:

Brendan Pyke, Yokine, AU;

Geoff Senior, Mount Claremont, AU;

Scott Thomas, Mount Hawthorn, AU;

Inventors:

Brendan Pyke, Yokine, AU;

Geoff Senior, Mount Claremont, AU;

Scott Thomas, Mount Hawthorn, AU;

Assignee:

WMC Resources Ltd., Southbank, Victoria, AU;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/008 (2006.01); B03D 1/012 (2006.01); B03D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A continuous flotation process and apparatus for iron-containing sulphides in ores and concentrates of ores are disclosed. The process includes adjusting the pH of an aqueous pulp of the ores or concentrates of the ores to be in the range of 6.5-8.5 and thereafter adding a reducing agent to modify an iron hydroxide film on the surface of iron-containing sulphides in the ores or ore concentrates to enable adsorption of a collector onto iron-containing sulphides. The process also includes adding the collector to the pulp prior to, during, or after adding the reducing agent. The process also includes aerating the pulp to increase the pulp potential to a level sufficient to allow collector adsorption onto the iron-containing sulphides and thereafter bubbling gas through the pulp and subjecting the aqueous pulp to froth flotation to produce a froth containing said sulphide containing minerals.


Find Patent Forward Citations

Pyke, Brendan. (2010). Recovery of valuable metals (U.S. Patent No. 7753212). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7753212

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