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:
Feb. 01, 2005
Filed:
Dec. 10, 2002
Applicant:
Thomas J. Shaniuk, Strongsville, OH (US);
Inventor:
Thomas J. Shaniuk, Strongsville, OH (US);
Assignee:
Engelhard Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 128 ;
U.S. Cl.
CPC ...
Abstract
Disclosed is a heavy metal removal media containing ferric hydroxide having unique levels of microporosity and mesoporosity/macroporosity, and/or a specific average particle size and/or granule size. The ferric hydroxide is made by simultaneously combining in a vessel at least one iron salt and at least one hydroxide compound, and then recovering the ferric hydroxide. The ferric hydroxide made by simultaneous mixing is effective in removing heavy metals, such as arsenic, from aqueous systems.