Mineral oils: processes and products – Paraffin wax; treatment or recovery – Chemical treatment
Patent
1990-04-30
1991-08-06
McFarlane, Anthony
Mineral oils: processes and products
Paraffin wax; treatment or recovery
Chemical treatment
208 18, 208 58, 208 59, 208 95, 208 97, 208291, 585739, C10G 7338, C10G 7342
Patent
active
050375288
ABSTRACT:
High viscosity index, low pour point lubricants are produced by the oligomerization of a wax-derived lubricant fraction. The fraction may be produced from slack wax or de-oiled wax by hydroisomerization over zeolite beta or hydrocracking/isomerization over an amorphous catalyst followed by selective dewaxing, preferably by catalytic dewaxing over a highly shape selective zeolite such as ZSM-23. The preferred peroxides are ditertiary alkyl peroxides such as ditertiary butyl peroxide (DTBP) and are typically used at temperatures of 100.degree.-300.degree. C.
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Garwood William E.
Le Quang N.
Wong Stephen S.
McFarlane Anthony
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Stone Richard D.
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