Method for dewatering coke tar-water mixtures

Details Method for dewatering coke tar-water mixtures Method for dewatering coke tar-water mixtures

1977-12-12

1979-02-13

O'Keefe, Veronica

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

208 22, 208 45, 208188, 252328, 201 41, C10C 102

Patent

active

041394518

ABSTRACT:
A method for dewatering tar-water mixtures obtained from the coking of coal is disclosed. The method involves adding to the tar from 150 to 3,000 ppm of a di-tri butyl ethoxylated phenol compound dissolved in water, heating the tar-water mixture, and then agitating it to allow contact with the chemical additive. This is followed by allowing the mixture to settle forming an aqueous upper phase and a lower dewatering tar phase.

REFERENCES:
patent: 3135681 (1964-06-01), Pflasterer
patent: 3880752 (1975-04-01), Premo
Irving Picus et al., Ind. Eng. Chem. 43, pp. 521-524, 1951.
Herbick et al. The Making, Shaping and Treating Steel, 9th Ed. Pittsburgh, Pa. pp. 90, 105-106, 165-168, 1971.

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