Method and apparatus for changing solvent composition in a solve

Details Method and apparatus for changing solvent composition in a solve Method and apparatus for changing solvent composition in a solve

1994-08-23

1997-07-15

Myers, Helane

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 38, 208321, 208 35, 196 145, C10G 7300

Patent

active

056479719

ABSTRACT:
A method and apparatus for changing the solvent composition in a solvent recovery system of a dewaxing apparatus, depending on the type of stock oil, by introducing a part of dry solvent into a wet solvent tank to thereby increase or decrease a concentration of MEK in the wet solvent used as a primary solvent for initially mixing with the stock oil.

REFERENCES:
patent: 3972779 (1976-08-01), Harrison
patent: 4088564 (1978-05-01), Perry et al.
patent: 4216075 (1980-08-01), Ryan
patent: 4217203 (1980-08-01), Ryan
patent: 5173191 (1992-12-01), Black
patent: 5306433 (1994-04-01), Leach

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