Dispersing agent

Details Dispersing agent Dispersing agent

B - Operations, Transporting

01

F

260/124, 134/56

B01F 3/12 (2006.01) B01F 17/00 (2006.01) B01F 17/52 (2006.01) C10L 1/32 (2006.01)

Patent

CA 1225085

ABSTRACT. A dispersing agent for solid particles in water, which is a tall oil pitch partially esterified with a poly- alkylene glycol mainly composed of ethylene oxide units of a molecular weight of above 600 or a monoester or mono- ether thereof and optionally also aminated having a re- sidual acid value higher than 3, and a process for pre- paring said dispersing agent which comprises heating the two reactants at 200-285°C for so long that the maximum acid value of the reaction mixture at this temperature is reduced at least 2 units. The dispersing agent can be used to disperse coal particles in water.

448410

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