Dewaxing process

Details Dewaxing process Dewaxing process

1980-07-16

1982-11-09

Bascomb, Jr., Wilbur L.

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

196 145, 203 29, 203 33, 203 37, 203 39, 203 96, 570262, C10G 7314, B01D 334

Patent

active

043583601

ABSTRACT:
Halogenated hydrocarbon and uncontaminated water is recovered from a stream of process water contaminated with halogenated hydrocarbon and hydrogen halide. The process water is neutralized and then distilled to obtain a first fraction containing halogenated hydrocarbon and water and a second fraction containing uncontaminated water. The first fraction is allowed to settle into layers of halogenated hydrocarbon and water which are then removed.
The contaminated stream may be obtained from a process for the solvent dewaxing of a petroleum fraction.

REFERENCES:
patent: 2589212 (1952-03-01), Agapetus et al.
patent: 3448016 (1969-06-01), Hoppe
patent: 3565786 (1971-02-01), Brown et al.
patent: 3660248 (1972-05-01), Tsao
patent: 3846253 (1974-12-01), Obrecht
patent: 3998706 (1976-12-01), Fruhwirt et al.
Di-Me Solvent Dewaxing & Wax Deoiling Hydrocarbon Processing (Sep. 1978), p. 181.

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