Process for the manufacture of lubricating base oils

Details Process for the manufacture of lubricating base oils Process for the manufacture of lubricating base oils

1990-05-16

1992-03-24

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 46, 208135, 208136, 208137, 208 27, 208 31, C10G 2304, C10G 4700

Patent

active

050985515

ABSTRACT:
Lubricating base oils having a high viscosity index, preferably at least 135, are manufactured by catalytic hydroisomerization of a hydrocarbonaceous feedstock, derived from a waxy crude oil, which feedstock has not been treated to remove a lubricating base oil fraction and which feedstock contains at least 30% by weight wax and has at least 80% by weight boiling above 300.degree. C. and at most 30% by weight boiling above 540.degree. C.

REFERENCES:
patent: 3658689 (1972-04-01), Steinmetz et al.
patent: 3861005 (1975-01-01), Steinmetz et al.
patent: 4419220 (1983-12-01), LaPierre
patent: 4747932 (1988-05-01), Miller
patent: 4822476 (1984-04-01), Ziemer et al.
Karzhev et al., Proceedings of 9th World Petroleum Congress, vol. 5, Processing and Storage, pp. 191-196.

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