Method for preparing a non-aqueous dispersion of particles of a

Details Method for preparing a non-aqueous dispersion of particles of a Method for preparing a non-aqueous dispersion of particles of a

1992-12-28

2000-04-18

Wu, Shean C.

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous liquid or supercritical phase: colloid systems;...

Primarily organic continuous liquid phase

502173, 502339, 502344, 252 6257, B01D 1200, B01F 300

Patent

active

060516143

ABSTRACT:
Disclosed is a method for preparing a non-aqueous dispersion of particles of a metal and/or a metal compound, which comprises contacting an aqueous dispersion of particles of a metal and/or a metal compound with a water-immiscible, non-aqueous liquid in the presence of a surfactant and in the presence or absence of a water-soluble inorganic acid salt and/or a water-soluble organic acid salt exhibiting substantially no surface activity, wherein when the contacting of the aqueous dispersion with the non-aqueous liquid is conducted in the absence of the salt, the salt is added after the contacting, thereby causing the particles to be migrated from the aqueous dispersion into the non-aqueous liquid.

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