Process for manufacturing lube base stocks

Details Process for manufacturing lube base stocks Process for manufacturing lube base stocks

1979-09-14

1981-03-31

Levine, Herbert

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 18, 208 92, 208111, C10G 5500, C10G 7100

Patent

active

042591708

ABSTRACT:
This invention provides an improved method for manufacturing a slate of lubricant base stocks from a paraffin base or a mixed base crude. In one embodiment of this invention, the bright stock raffinate is catalytically dewaxed with a catalyst comprising ZSM-5, for example, and the neutral oil raffinates are solvent dewaxed. The combined use of solvent and catalytic dewaxing as described herein provides a highly efficient method of manufacture without loss of product quality.

REFERENCES:
patent: 3658689 (1972-04-01), Steimetz et al.
patent: 3902988 (1975-09-01), Bennett et al.
patent: 3956102 (1976-05-01), Chen et al.
patent: 3989616 (1976-11-01), Pagen et al.

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