Mineral oils: processes and products – Fractionation – Liquid extraction with solvents
Patent
1997-04-02
2000-11-14
Griffin, Walter D.
Mineral oils: processes and products
Fractionation
Liquid extraction with solvents
208314, 208311, 208323, 208326, 208327, 208330, 208335, 585836, 585833, C10G 2112
Patent
active
061465208
ABSTRACT:
A process for reducing the Mutagenicity Index and/or the PCA content of a lubricating oil extract by re-extracting a lubricating oil extract with a second extraction solvent, different from the first extraction solvent, to form a secondary raffinate and a secondary extract mix; separating the secondary raffinate from the secondary extract mix; and separating the secondary raffinate and the secondary extract from said second extraction solvent.
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Gupte Anagha Avinash
Marler David O.
Griffin Walter D.
Mobil Oil Corporation
Preisch Nadine
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