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:
Aug. 02, 1977
Filed:
Jul. 07, 1975
Applicant:
Inventors:
Perry A Argabright, Larkspur, CO (US);
Larry M Echelberger, Robinson, IL (US);
Brian L Phillips, Littleton, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C22B / ;
U.S. Cl.
CPC ...
260 / ; 7510 / ; 260 / ; 260 / ; 260 / ;
Abstract
Metals can be removed from aqueous solutions by contacting such solutions with a composition formed by reacting polyisocyanurate salts with synthetic resins. The resulting composition contains polyisocyanurate salt groups which act as exchange sites for removing the metals from solution. Regeneration by treatment with suitable inorganic metal salts and use of chloromethylated synthetic resins in the forming of the polymer are utilized in preferred embodiments.