Liquefaction of calcium-containing coals

Details Liquefaction of calcium-containing coals Liquefaction of calcium-containing coals

1982-01-11

1983-08-30

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

44 1SR, C10G 100, C10L 104

Patent

active

044015500

ABSTRACT:
A process for liquefying a calcium-containing coal which comprises contacting calcium-containing coal with an aqueous sulfur oxide solution. The resulting admixture is contacted with hydrogen sulfide to produce water soluble thiosulfate. After the treated coal is separated from the resulting aqueous phase, the coal is charged to a coal liquefaction zone.

REFERENCES:
patent: 700485 (1968-01-01), Hemminger
patent: 1436289 (1922-11-01), Plauson
patent: 4161440 (1979-07-01), Brunson
patent: 4206033 (1980-06-01), Meanel et al.
patent: 4304655 (1981-12-01), Poddar
patent: 4322283 (1982-03-01), Maa et al.
patent: 4332666 (1982-06-01), Bauman et al.

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