Coal extraction process

Details Coal extraction process Coal extraction process

1978-06-23

1980-03-11

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

C10G 100

Patent

active

041927311

ABSTRACT:
Coal and other solid fossil fuels are subjected to supercritical gaseous extraction by heating a mixture of particulate coal and a solvent mixture of tetralin and xylene at supercritical temperature whereby high extractive yield is obtained and the residual solid material is easily separated from the liquid product.

REFERENCES:
patent: 3379638 (1968-04-01), Bloomer et al.
patent: 3558468 (1971-01-01), Wise
patent: 3966585 (1976-06-01), Gray et al.
patent: 3983027 (1976-09-01), McCollum et al.
patent: 4039425 (1977-08-01), Neavel
patent: 4077866 (1978-03-01), Owen et al.

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