Stabilized slurry and process for preparing same

Details Stabilized slurry and process for preparing same Stabilized slurry and process for preparing same

1983-09-16

1984-10-30

Smith, Y. Harris

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

C10L 132

Patent

active

044798067

ABSTRACT:
A process for preparing a carbonaceous slurry with a Brookfield viscosity of less than 5,000 centipoise when it is measured at a solids content of 70 volume percent, ambient temperature, ambient pressure, and 100 revolutions per minute, is disclosed. In the first step of this process, a specified carbonaceous compact is provided which has a certain particle size distribution, a specific surface area of from about 0.8 to about 4.0 square meters per cubic centimeter, an interstitial porosity of less than about 20 volume, and which contains at least about 5 weight percent of colloidally sized carbonaceous particles and at least 85 weight percent of particles smaller than 300 microns. In the second stage of this process, from about 60 to about 80 parts, by volume, of said carbonaceous compact is mixed with from about 20 to about 40 parts, by volume, of carrier liquid, wherein (1)at least two liquids are mixed with said carbonaceous compact, (2)at least about 90 weight percent of the total amount of liquid mixed with said carbonaceous compact is water, and (c)no more than about 10 weight percent of the total amount of liquid mixed with said carbonacoue compact is non-aqueous liquid.
A carbonacecous slurry which contains from about 60-80 volume percent of carbonaceous solid material, which has a Brookfield viscosity at 70 volume percent solids of less than 5,000 centipoise, which contains said carbonaceous compact, which contains from about 20-40 volume percent of liquid wherein (1)at least two liquids are present in the slurry, (2)at least about 90 weight percent of the liquid in the slurry is water, and (3)no more than about 10 weight percent of the liquid in the slurry is non-aqueous liquid, also is disclosed.

REFERENCES:
patent: 4104035 (1978-08-01), Cole et al.
patent: 4282006 (1981-04-01), Funk

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