Extraction of fossil fuel with guanadine extracting agent

Details Extraction of fossil fuel with guanadine extracting agent Extraction of fossil fuel with guanadine extracting agent

1983-06-20

1984-09-04

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

208 11LE, 208 8R, 208 11R, C10G 104

Patent

active

044695837

ABSTRACT:
Subdivided coal, oil shale or tar sands is extracted under non-thermally destructive conditions with a solvent liquid containing a compound having the general formula: ##STR1## where R, R.sub.1, and R.sub.2 are each hydrogen atoms, lower alkyl (C.sub.1 -C.sub.4) groups, or phenyl groups; provided that the compound has a decomposition temperature higher than the temperature of the extraction, and the extraction temperature is below the softening or decomposition temperature of the material being extracted.

REFERENCES:
patent: 4357230 (1982-11-01), Sibley et al.
patent: 4388170 (1983-06-01), Schmid et al.

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