Membrane separation process

Details Membrane separation process Membrane separation process

1981-10-21

1984-02-21

Gantz, Delbert E.

Mineral oils: processes and products

Fractionation

Liquid extraction with solvents

208308, C10G 2128

Patent

active

044328664

ABSTRACT:
A method for separating a mixture into a first fraction and a second fraction is disclosed. The method comprises passing the mixture into a decantation zone where the solution is separated into a first fraction relatively rich in a first compound and a second fraction relatively deficient in the first compound. One of the separated fractions subsequently is passed to a membrane separation zone for further purification. The subject invention is of particular utility in petroleum processing, where the solution passed to the decantation zone may be a petroleum processing fraction, such as filtrate from a dewaxing zone or an extract or raffinate from an extraction separation zone.

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