Optimizing the yield of maleic anhydride catalyst
CA 1259622 A · Owner: Scientific Design Company, Inc. · Inventors: Becker, Mitchell; Walden, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Optimizing the Yield of, Maleic Anhydride Catalyst Inventors, Mitchell Becker, John Walden Abstract, A method of optimizing the yield of a vanadium-phosphorus catalyst during the oxidation of butane to maleic anhydride which comprises establishing the temperature at which the catalyst provides the desired percentage conversion and yield of maleic anhydride with the established feed composition and then maintaining that temperature by continuously introducing an amount of a suitable phosphorus compound necessary to prevent a decline in selectivity to maleic anhydride without significantly increasing the temperature. 1275
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 September 19, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 19, 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.