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:
Jan. 29, 2019
Filed:
Oct. 21, 2014
Applicant:
Glencore Technology Pty Ltd, Brisbane, Queensland, AU;
Inventors:
Michael Matthew Hourn, Carindale, AU;
Daniel Mallah, Brisbane, AU;
Paul Voigt, Brisbane, AU;
Duncan Turner, Brisbane, AU;
Assignee:
GLENCORE TECHNOLOGY PTY LTD, , AU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 1/11 (2006.01); C22B 3/12 (2006.01); C22B 3/14 (2006.01); C22B 1/14 (2006.01); C22B 3/00 (2006.01); C21B 15/00 (2006.01); C22B 30/04 (2006.01); C22B 34/22 (2006.01); C22B 34/24 (2006.01);
U.S. Cl.
CPC ...
C22B 30/04 (2013.01); C21B 15/00 (2013.01); C22B 1/11 (2013.01); C22B 1/14 (2013.01); C22B 3/12 (2013.01); C22B 3/14 (2013.01); C22B 11/04 (2013.01); C22B 34/22 (2013.01); C22B 34/24 (2013.01);
Abstract
A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of Pof less than 25 μm and leaching the mineral composition in the presence of lime and/or limestone and a soluble alkali complexing agent and in the presence of an oxygen containing gas at a pH in the range of from 3.5 to 6.