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. 29, 2000
Filed:
Aug. 02, 1996
Applicant:
Inventors:
Thomas J Shaniuk, Strongsville, OH (US);
Robert V Russo, Brooklyn, NY (US);
Arthur F Greene, Lakewood, OH (US);
Assignee:
Engelhard Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210683 ; 210660 ; 502414 ;
Abstract
Disclosed is a method for removing arsenic from aqueous systems containing arsenic which includes contacting said aqueous system with an adsorbent material comprising (i) activated bauxite and (ii) aluminum trihydrate, until the arsenic is substantially removed from said aqueous system. The adsorbent material is prepared by the steps including (i) mixing powders of activated bauxite and aluminum trihydrate in the presence of water to form granules; (ii) drying said granules; and (iii) calcining said dried granules.