Process for stabilizing carbonylation catalyst in soluble form
CA 1180724 A · Owner: Monsanto Company · Inventors: Singleton, Thomas C.; Urry, Wilbert H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides for an improved process wherein an olefin, an alcohol, or an ester halide, or ether derivative of said alcohol is reacted with carbon monoxide in a liquid phase in the presence of a catalyst system that contains (a) a rhodium component and (b) an, iodine or bromine component. By passing at least a portion of the liquid reaction mass from the reaction zone to a separation zone of substantially lower CO partial pressure at least a portion of the carbonylation products as well, as unreacted carbon monoxide, inert gases and unreacted, olefin, alcohol, or alcohol derivative are vaporized and can be withdrawn from the separation zone. Precipitation of the rhodium …
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 8, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 2002.
- 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.