Solvent dewaxing process

Mineral oils: processes and products – Paraffin wax; treatment or recovery – Separation of paraffin from oil

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Details

C10G 2100, C10G 2102

Patent

active

043754031

ABSTRACT:
A process for dewaxing a petroleum oil stock with a liquid solvent employing direct heat exchange cooling of solvent-oil mixture with an immiscible liquid chilling medium.

REFERENCES:
patent: 2668141 (1954-02-01), Palmqvist
patent: 2698279 (1954-12-01), Mordria
patent: 3350297 (1967-10-01), Torobin
patent: 3429800 (1969-02-01), Sparks
patent: 3796651 (1974-03-01), Rojey
patent: 3972802 (1976-08-01), Bushnell
patent: 4115242 (1978-09-01), Sequeira et al.

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