Method for improving the demulsibility of base oils

Details Method for improving the demulsibility of base oils Method for improving the demulsibility of base oils

1991-10-02

1994-02-01

Bell, Mark L.

Mineral oils: processes and products

Refining

With solid catalyst or absorbent

208 18, 210689, C10G 2502, C10G 7100, B01D 1504

Patent

active

052829600

ABSTRACT:
Lube oil basestocks having an oil/water interfacial tension (.gamma. o/w) of less than 41 mN/m, preferably less than about 35 mN/m which exhibit unacceptable demulsibility can have their demulsibility performance improved by contacting said lube oil basestock with an acidic ion exchange resin, such as Amberlyst AR-15, or with silica. The treated lube oil base stock exhibits an oil/water interfacial tension (.gamma. o/w) of at least about 41 mN/m, preferably at least about 42 mN/m.

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