Dispersant for aqueous slurry of carbonaceous solid

Details Dispersant for aqueous slurry of carbonaceous solid Dispersant for aqueous slurry of carbonaceous solid

C - Chemistry, Metallurgy

08

F

44/10, 402/321

C08F 220/30 (2006.01) C08F 220/04 (2006.01) C08F 220/28 (2006.01) C10L 1/32 (2006.01)

Patent

CA 1328143

ABSTRACT OF THE DISCLOSURE This invention discloses a dispersant for an aqueous carbonaceous solid slurry, which comprises a water- soluble copolymer having an average molecular weight of 1,000 to 500,000 and obtained by polymerizing (A) 0.1 to 7 mol% of a polyalkylene glycol mono(meth)acrylate type monomer, (B) 5 to 94.9 mol% of a sulfoalkyl (meth)acrylate type monomer, (C) 5 to 94.9 mol% of an unsaturated carboxylic acid type monomer, and (D) 0 to 20 mol% of other monomer (providing that the total amount of the monomers is 100 mol%) and/or a salt of the water-soluble copolymer. -57-

534879

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