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:
Jan. 26, 2016
Filed:
Sep. 23, 2010
Applicants:
Sathanjheri A. Ravishankar, Shelton, CT (US);
Bing Wang, Brookfield, CT (US);
Inventors:
Sathanjheri A. Ravishankar, Shelton, CT (US);
Bing Wang, Brookfield, CT (US);
Assignee:
CYTEC TECHNOLOGY CORP., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 25/16 (2006.01); C01B 25/22 (2006.01);
U.S. Cl.
CPC ...
C01B 25/22 (2013.01);
Abstract
Processes and reagents for inhibiting or eliminating scale formation during wet-process phosphoric acid production are provided and include adding to a wet-process phosphoric acid production stream a scale inhibiting amount of a reagent having an aliphatic or aromatic compound containing at least two hydroxy groups, and at least one amine.