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:
Jul. 11, 1995
Filed:
Dec. 20, 1993
Russell J Morgan, Grand Island, NY (US);
Robert L Zeller, III, Youngstown, NY (US);
Joseph Dealmeida, Carrollton, TX (US);
Occidental Chemical Corporation, Niagara Falls, NY (US);
Abstract
Disclosed is a method of making hypophosphorous acid from sodium hypophosphite by performing electrodialytic water splitting upon an aqueous solution of sodium hypophosphite. The process can be tied into an existing process for producing sodium hypophosphite wherein the product of the sodium hypophosphite process is used as a starting material in the hypophosphorous acid process and the depleted sodium hypophosphite solution from the hypophosphorous acid process, which contains some hypophosphorous acid, is used to adjust the pH in the sodium hypophosphite process.