Solvent extraction of lubricating oils

Details Solvent extraction of lubricating oils Solvent extraction of lubricating oils

1989-11-20

1991-08-20

Myers, Helane E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 36, 208311, 208317, 208320, C10G 2100

Patent

active

050412060

ABSTRACT:
A lubricating oil stock is extracted with N-methyl-2-pyrrolidone to yield a primary raffinate useful as a high VI lubricating base oil and a primary extract. The primary extract is mixed with antisolvent and chilled to yield a secondary raffinate. This secondary raffinate is sufficiently reduced in aromatics that it is suitable for fluidized catalytic cracking in the absence of hydrogenation.

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