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:
Apr. 22, 1997
Filed:
May. 22, 1995
Applicant:
Inventors:
E Michael Kerr, Aurora, IL (US);
Manian Ramesh, Lisle, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
252194 ; 210734 ; 44620 ; 44626 ;
Abstract
A method for dewatering coal tailings, clean coal products and mineral slurries, as well as for the clarification of water contained in coal refuse slurries, employing a copolymer of diallyldimethlylammonium halide and a vinyl alkoxysilane, which is preferably a copolymer of diallyldimethylammonium chloride and vinyltrimethoxysilane as a coagulant is disclosed.