Process for the preparation of modified zeolites
CA 1314533 C · Owner: Klazinga, Aan Hendrik · Inventors: Klazinga, Aan Hendrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the preparation of a modified zeolite by treatment with a solution of one or more metal salts and a calcination which comprises treating a zeolite having an alkali oxide/aluminium oxide molar ratio between 0.13 and I with a solution of a salt of a multi-valent metal-ion having an atomic number of from 12 to 83 and converting the thus treated zeolite by calcination into a product having a unit cell size between 24.21 and 24.60 A.
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 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 2010.
- 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.