Conversion of syngas to dimethyl ether
CA 1254585 A · Owner: Mobil Oil Corporation · Inventors: Bell, Weldon K.; Chang, Clarence D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Synthesis gas, optionally together with water is contacted, at 232 to 399°C with a catalyst comprising coprecipitated Cr Cu and, Zn components in which the atomic ratio Cr/(Cu+Zn) is 0.1 to 1.0 and an acidic dehydrating component and aged catalyst is regenerated by contact with an oxygen-containing gas at 38 to 538°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 May 23, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 23, 2006.
- 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.