Coal-water slurry viscosity reduction using olefin/maleic acid s

Details Coal-water slurry viscosity reduction using olefin/maleic acid s Coal-water slurry viscosity reduction using olefin/maleic acid s

1982-05-21

1984-04-10

Warren, Charles F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 62, 252356, C10L 132

Patent

active

044418884

ABSTRACT:
An improved coal-water slurry of the type comprising at least 45% by weight of finely divided coal particles and a dispersing agent, said slurry being characterized as having a Brookfield viscosity at 60 rpm of less than 4,000 centipoise, the improvement which comprises adjusting the pH of said slurry to at least 6 and using as the dispersing agent, a water-soluble salt of an olefin/maleic acid copolymer having a molecular weight within the range of about between 3,000-50,000.

REFERENCES:
patent: 2615845 (1952-10-01), Lippincott et al.
patent: 4242098 (1980-12-01), Braun et al.
patent: 4282006 (1981-08-01), Funk
patent: 4302212 (1981-11-01), Yamamura
Steffers et al., Chemical Abstracts, vol. 91, No. 91:108877j, 1979.

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