C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/250, 182/15.
C10G 21/28 (2006.01)
Patent
CA 1215328
ABSTRACT OF THE DISCLOSURE 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 (30) where the solution is separated into a first fraction relatively rich in a first compound and a second fraction relatively deficient in the first com- pound. One of the separated fractions subsequently is passed to a membrane separation zone (40) 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.
441934
Thompson John A.
West Theodore H.
Borden Ladner Gervais Llp
Imperial Oil Limited
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