Process for forming stable coal-oil mixtures

Details Process for forming stable coal-oil mixtures Process for forming stable coal-oil mixtures

1981-12-28

1984-05-15

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 1SR, C10L 132, C10L 902

Patent

active

044485859

ABSTRACT:
A process for forming a coal-oil mixture fuel slurry of enhanced stability comprising the steps of: (1) contacting an aqueous slurry of coal particles containing ash and iron pyrite mineral matter with a promoting amount of at least one conditioning agent capable of modifying or altering the existing surface characteristics of the pyrite under conditions to effectuate alteration or modification of at least a portion of ash and the contained pyritic sulfur; (2) agglomerating the coal particles while said pyrite surfaces are altered or modified in an aqueous medium with hydrocarbon oil; (3) separating coal hydrocarbon oil agglomerates from at least a portion of the iron pyrite mineral matter and ash; and (4) mixing the separated coal hydrocarbon oil agglomerates with a quantity of fuel oil to form a coal-oil mixture of enhanced stability.

REFERENCES:
patent: 3932145 (1976-01-01), Foulke
patent: 4217110 (1980-08-01), Verschuur et al.
patent: 4249910 (1981-02-01), Masologites et al.

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