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:
Dec. 26, 1978
Filed:
Nov. 21, 1974
Applicant:
Inventors:
Kestutis A Keblys, Southfield, MI (US);
John M McEven, Lake Orion, MI (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423501 ; 210 32 ;
Abstract
Iodine is recovered from an aqueous solution containing iodide such as underground brine by repeated cycles of (1) passing the brine through a basic anion exchange resin to adsorb iodide, and (2) oxidizing adsorbed iodide to iodine by passing an acidified aqueous iodate solution (e.g., NaIO.sub.3) through the resin. The cycle is repeated many times until the resin is iodine-loaded. Iodine is then eluted from the resin, for example, with aqueous NaOH and recovered from the eluate by conventional means.