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:
Mar. 25, 1980
Filed:
Apr. 07, 1977
Applicant:
Inventor:
Lawrence V Gallacher, East Norwalk, CT (US);
Assignee:
King Industries, Inc., Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C22B / ; C22B / ;
U.S. Cl.
CPC ...
7510 / ; 75117 ; 75119 ; 75120 ; 75121 ; 423 24 ; 423 99 ; 423139 ;
Abstract
Solvent-extraction processes to recover metal values are improved by use as a component of the solvent-extractant of didodecylnaphthalene sulfonic acid. Especially important applications for the improved solvent-extractant which can include a .alpha.-hydroxy oxime are in the separation recovery of copper, nickel, zinc and cobalt and the selective separation of these metals, one from the other, and from iron, in acidic aqueous media.