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. 27, 2022
Filed:
Jul. 10, 2022
Applicant:
Hmr Solutions, Inc., Brooklyn, NY (US);
Inventor:
Karl William Yost, Anacortes, WA (US);
Assignee:
HMR Solutions, Inc., Brooklyn, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 25/00 (2006.01); A62D 3/33 (2007.01); A62D 3/36 (2007.01); A62D 3/38 (2007.01); B09C 1/08 (2006.01); A62D 101/43 (2007.01);
U.S. Cl.
CPC ...
C01B 25/00 (2013.01); A62D 3/33 (2013.01); A62D 3/36 (2013.01); A62D 3/38 (2013.01); B09C 1/08 (2013.01); A62D 2101/43 (2013.01); A62D 2203/02 (2013.01);
Abstract
A reagent system for treating heavy metal-contaminated materials is provided and includes an oxidizer, a soluble phosphate, and an alkaline hydroxide source, such as a caustic soda or lime. A method of treating mine waste bearing one or more heavy metals is also provided and includes the step of admixing a reagent system with heavy metal-containing material to preferentially reduce the leachability of heavy metals and form precipitates and complexes of low metal solubility that remain stable within the host solid matrix for long durations in acidic and abrasive conditions.