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. 07, 1986
Filed:
Dec. 31, 1984
Applicant:
Inventors:
R Brantley Sudderth, Tucson, AZ (US);
Joseph M Sierakoski, Tucson, AZ (US);
Roy G Lewis, Tucson, AZ (US);
Assignee:
Henkel Corporation, Minneapolis, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ;
U.S. Cl.
CPC ...
204108 ; 204119 ; 7510 / ; 75103 ; 75117 ; 75120 ; 423 24 ; 423100 ;
Abstract
A process for recovery of zinc values from aqueous ammoniacal solutions employing certain alkylsalicylaldoximes or acetophenoximes as the extractant. The method also provides a means for separation of the zinc and copper values present in the aqueous ammoniacal solution. The zinc and copper values are separately recovered from the organic phase by pH controlled stripping.