Patent ID: 6194473
Filing Date: 2001-02-27
Classification: B01F,C09K,Y10S

Abstract:
An improved dispersant formulation which is effective in water having a wide range of salinity, which comprises:(a) a sorbitan monoester of a C.sub.10 -C.sub.20 aliphatic monocarboxylic acid;(b) a polyoxyethylene adduct of a sorbitan monoester of a C.sub.10 -C.sub.20 aliphatic monocarboxylic acid, said adduct having from 6 to 30 ethyleneoxide units per mole of ester;(c) an alkali metal salt of a dialkyl sulfosuccinate wherein the alkyl group is a branched chain radical containing 4 to 13 carbon atoms;(d) a polyoxyethylene adduct of a sorbitan triester of a C.sub.10 -C.sub.20 aliphatic monocarboxylic acid having from 6 to 30 ethyleneoxide units per mole of triester or a polyoxyethylene adduct of a sorbitol hexaester of C.sub.10 -C.sub.20 aliphatic monocarboxylic acid, said having from 6 to 30 ethyleneoxide units per mole of hexaester;(e) a glycol ether solvent selected from the group consisting of ethylene glycol ether, propylene glycol ether, dipropylene glycol ether, tripropylene glycol ether and mixtures thereof; and(f) a divalent inorganic salt.