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.

Date of Patent:
Sep. 09, 2025

Filed:

Nov. 13, 2023
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Lawrence Bernard Kool, Clifton Park, NY (US);

Mark Alan Rhoads, Cincinnati, OH (US);

Assignee:

General Electric Company, Evendale, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 9/18 (2006.01); B22F 1/145 (2022.01);
U.S. Cl.
CPC ...
B22F 9/18 (2013.01); B22F 1/145 (2022.01); B22F 1/147 (2022.01); B22F 2301/052 (2013.01); B22F 2302/25 (2013.01);
Abstract

Methods for reducing a concentration of hexavalent chromium within a first aluminum slurry by adding a reducing agent to form a second aluminum slurry are provided. The reducing agent causes a chemical reduction reaction with the hexavalent chromium compound of the first aluminum slurry to form a trivalent chromium compound within the second aluminum slurry such that a first weight ratio of hexavalent chromium to trivalent chromium in the first aluminum slurry is decreased to a second weight ratio of hexavalent chromium to trivalent chromium in the second aluminum slurry, with the second weight ratio being less than the first weight ratio.


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