Treatment of coal tar emulsions

Details Treatment of coal tar emulsions Treatment of coal tar emulsions

1982-01-25

1983-07-26

Hearn, Brian E.

Mineral oils: processes and products

Refining

Water removal

208 39, C10G 3304

Patent

active

043953263

ABSTRACT:
The present invention relates to a process for the treatment of stable emulsions of water and quinoline insolubles in coal tar comprising thoroughly mixing the coal tar with at least one of a specific class of surface-active compositions, followed by a separation of water and quinoline insoluble components from the mixture. The invention also relates to a method of eliminating or minimizing the build-up of coal tar-derived deposits on surfaces in contact with the coal tar.

REFERENCES:
patent: 2956944 (1960-10-01), Logan
Weil et al, Journal of the American Oil Chemists Society, vol. 36, (1959), pp. 241-244.
Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd Ed., Interscience, N.Y., (1969), vol. 19, pp. 528, 529.
Patzek, Chemical Abstracts, vol. 70, (1969), No. 108114z.
Medvedev et al, Chemical Abstracts, vol. 78, (1973), No. 100291z.

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