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:
Mar. 18, 1986
Filed:
Sep. 04, 1984
Applicant:
Inventor:
William B Hughes, Dallas, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05B / ;
U.S. Cl.
CPC ...
71 41 ; 71 43 ; 71 33 ; 423306 ;
Abstract
A process is provided for the recovery of one or more useful products including fertilizer, salt, and/or purified process water from brines. The source of the brines can be oil field wastes, seawater, or other inland brine sources. Phosphoric acid is initially added to the brine followed by addition of ammonia or a basic form of potassium. The resulting precipitate is useful as a fertilizer. The remaining salt in the brine may then be removed and recovered along with purified process water.