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:
May. 15, 2001
Filed:
Apr. 20, 1998
Applicant:
Inventors:
Michael J. Virnig, Tucson, AZ (US);
Phillip L. Mattison, North Wales, PA (US);
Leroy O. Krbechek, Santa Rosa, CA (US);
J. Murdoch Mackenzie, Gisborne, AU;
Assignee:
Henkel Corporation, Gulph Mills, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/100 ; C22B 1/500 ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
C01B 3/100 ; C22B 1/500 ; C07C / ; C07C / ; C07C / ;
Abstract
Alternative equilibrium modifiers for use with aldoxime extractants, such as hydroxyl aryl aldoxime extractants, employed in the process for extraction of metal values, particularly copper values, in the extraction from aqueous solutions, in which the extractant and modifiers are employed in an organic solvent phase, the solvent being a water insoluble, water immiscible hydrocarbon solvent, such as a kerosene.