Preparation of medicinal white oils and medicinal paraffins

Details Preparation of medicinal white oils and medicinal paraffins Preparation of medicinal white oils and medicinal paraffins

C - Chemistry, Metallurgy

07

C

196/92, 260/714.

C07C 5/02 (2006.01) B01J 23/755 (2006.01) B01J 37/18 (2006.01) C07C 9/00 (2006.01) C10G 45/48 (2006.01) C10G 49/04 (2006.01) C10G 65/08 (2006.01) C10G 67/08 (2006.01)

Patent

CA 1286324

Abstract of the Disclosure: Medicinal white oils and medicinal paraffins are prepared from petroleum fractions containing aromatics and nitrogen, oxygen and sulfur com- pounds, eg. light and heavy atmospheric gas oils, vacuum gas oils and residues, which have been pretreated in a first stage by acid treatment or catalytic hydrogenation, by hydrogenation in a second stage over a nickel-containing catalyst under from 50 to 200 bar and at elevated tem- peratures, by a process in which the catalyst used in the second stage and present in the oxide form is reduced with a hydrogen-containing gas, passivated and then again acti- vated with hydrogen, before the hydrogenation to medicinal white oils or paraffins is carried out.

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