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:
Feb. 06, 2001
Filed:
Mar. 11, 1998
Applicant:
Inventor:
James A. King, West Vancouver, CA;
Assignee:
Placer Dome, Inc., Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 1/100 ; C22B 1/500 ; C22B 1/900 ; B01F 1/302 ;
U.S. Cl.
CPC ...
C22B 1/100 ; C22B 1/500 ; C22B 1/900 ; B01F 1/302 ;
Abstract
A method is disclosed for recovering a metal from a metal containing material by autoclaving with an autoclave which includes an agitator that includes a first inlet for a recycled oxygen-containing gas, a second inlet for a fresh oxygen-containing gas, an impeller having a plurality of outlets to recirculate or introduce the oxygen-containing gases into the slurry and a set of mixing blades located below the outlets to radially disperse gas bubbles substantially uniformly throughout the slurry. The outlets for the gas can be located in an intermediate set of blades for thorough dispersion of the gas bubbles in the slurry.