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:
Nov. 19, 2002
Filed:
Dec. 22, 2000
Applicant:
Inventors:
Edward Robakowski, Jr., Brecksville, OH (US);
Lyle E. Kirman, Cleveland Heights, OH (US);
Assignee:
Kinetico Incorporated, Newbury, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C22B 1/100 ; C22B 2/500 ;
U.S. Cl.
CPC ...
C22B 1/100 ; C22B 2/500 ;
Abstract
A method for selectively separating and recovering palladium from an aqueous palladium/tin catalyst solution. The method includes the steps of adjusting the pH of the aqueous solution to a specified pH range thereby precipitating the tin, and producing a soluble form a palladium. The solution can be either pre-filtered or settled and subsequently processed through ion exchange resin in a conventional manner, or processed in an upflow direction through an at least partially fluidized bed of ion exchange resin to remove and concentrate the palladium for recovery.