Mixed oxide catalyst of rb, ce, cr, ni, fe, bi and mo for the manufacture of acrylonitrile
CA 2507181 A1 · Owner: Paparizos, Christos · Inventors: Paparizos, Christos; Seely, Michael J.; Jevne, Stephen C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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A catalyst comprising a complex of catalytic oxides comprising rubidium cerium, chromium, iron, bismuth, molybdenum and at least one of nickel or , nickel and cobalt optionally magnesium, and optionally one of phosphorus antimony, tellurium, sodium, lithium, potassium cesium, thallium, boron, germanium, tungsten calcium wherein the relative ratios of these elements are represented by the following general formula: Rba Ceb Crc Mgd Ae Fef Big Yh Mo12 Ox wherein A is Ni or the combination of Ni and Co Y is at least one of , P, Sb, Te, Li, Na K, Cs, TI, B, Ge, W, Ca, Zn, a rare earth element or , mixtures thereof, a is about 0.01 to about 1 b is about 0.01 to about 3, c is , about 0.01 to …
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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
- Filed November 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2025.
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