Aqueous carbonaceous slurries

Details Aqueous carbonaceous slurries Aqueous carbonaceous slurries

1982-06-10

1983-11-15

Warren, Charles F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 62, 406 47, 406 49, 406197, 252353, 252355, C10L 132

Patent

active

044153384

ABSTRACT:
Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of coal in water and improved pumpability are obtained by having present a salt of naphthalenesulfonic acid formaldehyde condensate and at least one water soluble polymer selected from the group consisting of gum karaya, mixtures of gum karaya and polyacrylamide and polysaccaride modified with polyacrylate. For example, a mixture of 61.5% by weight of ammonium naphthalenesulfonic acid formaldehyde condensate and 38.5% by weight of gum karaya can be added to an aqueous coal slurry in an amount of 0.13% by weight of the slurry.

REFERENCES:
patent: 4195975 (1980-04-01), Hamuro et al.
patent: 4242098 (1980-12-01), Braun et al.
patent: 4282006 (1981-08-01), Funk
patent: 4330301 (1982-05-01), Yamamura et al.

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