Process for recovering solvents from solvent-containing hydrocar

Details Process for recovering solvents from solvent-containing hydrocar Process for recovering solvents from solvent-containing hydrocar

1981-01-19

1983-12-27

Kaplan, G. L.

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208321, C10G 2128

Patent

active

044229232

ABSTRACT:
Recovery of solvent from hydrocarbon oil extract fractions comprising solvent and oil is effected in at least three sequential flash vaporization stages wherein the pressure of the second vaporization stage is at the highest pressure level and the pressure of the third vaporization stage is at a pressure level intermediate the pressure level of the first and second vaporization stages.

REFERENCES:
patent: 2806071 (1957-09-01), Findlay
patent: 2866689 (1958-12-01), Samuels
patent: 2885356 (1959-05-01), Fisher
patent: 3470089 (1969-09-01), Morris et al.
patent: 4052294 (1977-12-01), Blume et al.

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