Process for preparing synthetic ferrierite
CA 1086293 A · Owner: W. R. Grace Co. · Inventors: Edwards, Grant C.; Vaughan, David E. W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An improved process for preparing synthetic ferrierites having the absorption and catalytic properties characteristic of 5 to 8 angstrom zeolites which comprises promoting by a reaction mixture composed of salts of Group I and Group II cations of the periodic table with lithium salts. The promoted reaction mixture is seeded with natural or synthetic ferrierite seeds, and heated to convert the mass to the synthetic ferrierite. The product has the emperieal formula 0?1 to 0?9 Li2O:0O?1:O?9 R2O:Al2O3:6 to 25 SiO2 wherein R2O is Na2O, K2O, or Rb2O and/or Cs2O. 0?1 to 0?9 Li2O: 0?1 to 0?9 MO:A12O3:6 to 25 SiO2 wherein MO is BaO CaO, MgO or SrO, or …
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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 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 23, 1997.
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Timeline
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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.