skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Aqueous coal slurry composition

Patent ·
OSTI ID:6375641

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-erminated compound prepared by reacting compound (a-1) 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.

Assignee:
Kao Corporation (Japan); Lion Corporation (Japan)
Patent Number(s):
US 4470828
OSTI ID:
6375641
Resource Relation:
Patent Priority Date: Priority date 18 Jan 1983, Japan; Other Information: PAT-APPL-458920
Country of Publication:
United States
Language:
English