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:
May. 24, 1988
Filed:
May. 15, 1987
Applicant:
Inventor:
Mildred M Newman, Littleton, CO (US);
Assignee:
Manville Corporation, Denver, CO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210688 ; 210912 ; 210913 ;
Abstract
Alkaline earth silicate solids with a surface area in the range of about 0.1-1000 m.sup.2 /g are used to remove Ag, Pb, Zn, Ni, and Cr (III) metal ions from contaminated waste waters. The foregoing metal ions are removed from the contaminated waste waters by a process involving the steps of contacting the contaminated waste waters at a pH in the range of 4 to 6 with the alkaline earth silicate solid and thereafter filtering the alkaline earth silicate solid from the contaminated waste waters to remove the metal ions.