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. 25, 1982
Filed:
May. 21, 1981
Applicant:
Inventor:
James R King, Jr, Rochester, NY (US);
Assignee:
Ktrom Industries, Inc., Wilmington, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75109 ; 266170 ; 428313 ; 428407 ; 428461 ;
Abstract
A first metal is removed from solutions such as polluted water by contacting the solution with a metallic exchange medium. The metallic exchange medium comprises a plurality of buoyant elements, each comprising a substrate coated with a second metal sufficiently reactive to undergo an electrochemical exchange reaction with the first metal. The substrate can be expanded polystyrene beads and the metal can be iron such as sponge iron of small particle size.