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Publication numberCA2128173 A1
Publication typeApplication
Application numberCA 2128173
Publication date20 Jan 1995
Filing date15 Jul 1994
Priority date19 Jul 1993
Also published asCA2128173C, DE69410361D1, DE69410361T2, EP0635602A1, EP0635602B1, US5431783
Publication numberCA 2128173, CA 2128173 A1, CA 2128173A1, CA-A1-2128173, CA2128173 A1, CA2128173A1
InventorsDan Stephen Honig
ApplicantDan Stephen Honig, Cytec Technology Corp., Ciba Specialty Chemicals Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: CIPO, Espacenet
Compositions and methods for improving performance during separation of solids from liquid particulate dispersions
CA 2128173 A1
Abstract
A method for providing improved liquid-solid separation performance in liquid particulate dispersion systems. The method comprising adding to a liquid system containing a plurality of finely divided particles (i) from about 0.05 to about 10 pounds per ton, based upon the dry weight of the particles, of an ionic, organic crosslinked polymeric microbead with a diameter of less than about 500 nm, and (ii) from about 0.05 to about 20 pounds per ton, same basis, of a polymeric material selected from the group consisting of polyethylenimines, modified polyethylenimines and mixtures thereof. In addition to the compositions described above, additives such as organic ionic polysaccharides (e.g., a starch), may also be combined with the liquid system to facilitate separation of the particulate material therefrom.
Description  available in
Claims  available in
Classifications
International ClassificationB01D21/01, D21H21/10, D21H21/54, D21H17/56, D21H17/38
Cooperative ClassificationD21H17/56, D21H21/10, D21H21/54
European ClassificationD21H21/10, D21H17/56, D21H21/54
Legal Events
DateCodeEventDescription
6 Jun 2001EEERExamination request
27 Aug 2013MKLALapsed
Effective date: 20130716