Process to prepare a base oil from slack-wax

Details Process to prepare a base oil from slack-wax Process to prepare a base oil from slack-wax

2007-08-28

2007-08-28

Caldarola, Glenn (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

C208S108000, C208S031000, C208S027000

Reexamination Certificate

active

10479900

ABSTRACT:
A process to prepare a base oil starting from a slack wax containing feedstock by (a) contacting the feedstock in the presence of hydrogen with a sulphided hydrodesulphurisation catalyst having nickel and tungsten on an acid amorphous silica-alumina carrier and (b) performing a pour point reducing step on the effluent of step (a) to obtain the base oil.

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International Search Report dated May 16, 2003.
Iishan, G., et al., “Sulfidation and Thiopene Hydrodesulfurization Activity of Nickel Tungsten Sulfide Model Catalysts, Prepared Without and With Chelating Agents”, Journal of Catalysis, Academic Press, Duluth, MN, US, vol. 196, 2000, pp. 180-189.

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