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. 13, 2022
Filed:
May. 28, 2020
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23F 11/167 (2006.01); C22C 9/06 (2006.01); C22C 38/00 (2006.01); C23F 11/08 (2006.01); C23F 11/173 (2006.01);
U.S. Cl.
CPC ...
C23F 11/1676 (2013.01); C22C 9/06 (2013.01); C22C 38/00 (2013.01); C23F 11/08 (2013.01); C23F 11/173 (2013.01);
Abstract
A method of inhibiting corrosion of a metal surface in contact with geothermal system is provided. The method may include contacting the metal surface with a corrosion inhibitor composition by adding the composition to geothermal process water. The corrosion inhibitor composition may include an organic phosphonate, an ortho phosphate, and zinc or a salt thereof.