Process for the hydrogenation of coal
CA 1231657 A · Owner: Veba Oel Entwicklungsgesellschaft Mbh. · Inventors: Merz, Ludwig; Fuhrmann, Klaus; Graeser, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the hydrogenation of coal which entails slurrying pulverized coal with oil hydrogenating the mixture at an elevated temperature and pressure and separating the liquid and solid reaction products from the gaseous reaction products wherein the slurry oil contains non-process derived hydrocarbon mixtures having a boiling point range above about 200°C, in the amount of about 30-100% by weight with the remainder of the slurry oil being process derived oils having a boiling point range above about 200°C.
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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
- 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.