Process for the preparation of an aromatic hydrocarbon mixture
CA 1181436 A · Owner: Shell Canada Limited · Inventors: De Vries, Auke F.; Van Der Meijden, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aromatic hydrocarbon mixtures with a high benzene content are prepared from non-aromatic organic compounds over a crystalline iron-aluminium silicate (CIAS) catalyst having a SiO2/Fe2O3 molar ratio of 100-300 and a SiO2/Al2O3 molar ratio of 135-1900.
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 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 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.