Aqueous coal slurry composition

C - Chemistry – Metallurgy – 10 – L

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44/10

C10L 1/32 (2006.01)

Patent

CA 1190743

ABSTRACT OF THE DISCLOSURE An aqueous coal slurry composition is provided which comprises: (a) at least one compound selected from (a-1) a polyether polyol compound prepared by adding ethylene oxide and/or propylene oxide to an active hydrogen-containing compound, (a-2) a compound prepared by esterifying compound (a-1), (a-3) a compound prepared by phosphating, sulfating or carboxyalkylating compound (a-1) or a salt thereof, (a-4) a compound prepared by crosslinking compound (a-1) with a crosslinking agent, (a-5) a compound prepared by reacting compound (a-1) with epihalohydrin and (a-6) an isocyanate- -terminated compound prepared by reacting compound (a-13 with a polyvalent isocyanate, (b) at least one surface active agent selected from (b-1) a sulfonation product of naphthalene or its salt or an aliphatic aldehyde addition condensate thereof, (b-2 an aliphatic aldehyde condensate of a sulfonic acid group- -containing aminotriazine or its salt and (b-3) a sulfonation product of creosote oil or its salt or an aliphatic aldehyde addition condensate thereof, (c) water and (d) a coal powder. The aqueous coal slurry has good fluidity and static stability.

419707

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