Aqueous slurries of carbonaceous materials

Details Aqueous slurries of carbonaceous materials Aqueous slurries of carbonaceous materials

1982-09-17

1984-03-13

Warren, Charles F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 62, 44 77, 406 47, 406 49, 406197, 252353, 252355, C10L 132

Patent

active

044365284

ABSTRACT:
Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of carbonaceous material 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 sodium alginate, guar gum, locust bean gum, carboxymethylhydroxypropyl guar gum, hydroxypropyl guar gum and guarpak guar gum. For example, a mixture of 96.8% by weight of ammonium naphthalenesulfonic acid formaldehyde condensate and 3.2% by weight of sodium alginate can be added to an aqueous coal slurry in an amount of 0.31% 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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