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. 11, 1986
Filed:
Feb. 11, 1985
Applicant:
Inventor:
Mark J McKinley, Linwood, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210727 ; 209-5 ; 210734 ;
Abstract
An improved method for flocculating suspended particulate solids from an acidic aqueous medium and for clarifying said aqueous medium comprises initially contacting the suspension with a water-soluble polymer having an anionic character followed by contacting the suspension with a water-soluble polymer having a cationic character. Such method is particularly useful in clarifying acidic aqueous media used in mining operations, etc.