Dehydrocyclization or catalytic reforming using sulfur tolerant zeolite catalyst
CA 2073960 A1 · Owner: Miller, Stephen J. · Inventors: Mulaskey, Bernard F.; Miller, Stephen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided for catalytic reforming or dehydrocyclization of hydrocarbons using a catalyst comprising a noble metal and an intermediate pore size crystalline silicate having a high silica to alumina ratio and a relatively low alkali content. Preferably the crystalline silicate is in the form of small crystallite size, such as less than 5 microns. The reforming or dehydrocyclization process is sulfur tolerant so that the reforming can be carried out in the presence of sulfur or with periodic exposure to sulfur.
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
- Filed February 28, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2013.
- 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.