Process for improving the storage stability and bulk oxidation s

Details Process for improving the storage stability and bulk oxidation s Process for improving the storage stability and bulk oxidation s

1985-12-11

1987-04-14

Doll, John

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 18, 208 97, 208254H, 208143, 208 89, C10G 6512, C10G 6702, C10G 6912

Patent

active

046576614

ABSTRACT:
A process for stabilizing a lubricating oil base stock derived from a nitro-aromatic-containing hydrocracked bright stock, comprising a three-step stabilizing process utilizing hydrodenitrification followed by mild hydrofinishing followed by nonhydrogenative acid stabilization.

REFERENCES:
patent: 3852207 (1974-12-01), Stangeland et al.
patent: 3904513 (1975-09-01), Fischer et al.
patent: 3941680 (1976-03-01), Bryson et al.
patent: 4263127 (1981-04-01), Rausch et al.
patent: 4325804 (1982-04-01), Everett et al.
patent: 4325805 (1982-04-01), Miller
patent: 4347121 (1982-08-01), Mayer et al.
patent: 4361477 (1982-11-01), Miller
patent: 4414097 (1983-11-01), Chester et al.

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