Process for the manufacture of formaldehyde and methanol by oxidation of methane
CA 1096884 A · Owner: Chemische Werke Huls Aktiengesellschaft · Inventors: Brockhaus, Rudolf; Franke, Hans-Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a process for the oxidation of methane to methanol and formaldehyde in a combustion tube under pressure. Preheated methane or a methane inert gas mixture is introduced into a combustion tube and oxidising gas, for example air, is introduced concentrically into the combustion tube for reaction with the methane. The methane stream has a velocity of from 1 to 15m. sec-1, the oxidising gas stream has a velocity from 50 to 300m. sec-1 greater than the velocity of the methane stream and, the volume of the methane stream is from 3 to 100 times greater than that of the stream of oxidising gas.
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 March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
- 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.