Two-stage hydrocarbon dewaxing hydrotreating process
CA 1203225 A · Owner: Mobil Oil Corporation · Inventors: Oleck, Stephen M.; Wilson, Robert C. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The pour point of a hydrocarbon charge stock boiling in the range of 204° to 566°C (400°F to 1050°F) and particularly a, lubricating oil charge stock boiling from 316° to 566°C (600°F to 1050°F) is reduced by catalytically dewaxing the charge stock in the presence of a zeolite catalyst and subsequently subjecting at least the liquid portion thereof to hydrotreating in the presence of a hydrotreating catalyst comprising a hydrogenating component and a siliceous porous crystalline material selected from ZSM-5 ZSM-11, ZSM-23 and ZSM-35 zeolites.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.