Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
252435, 252437, 260533R, 252432, C07D30760
Unsaturated hydrocarbons having 4 to 6 carbon atoms are catalytically oxidized into maleic anhydride at relatively low temperatures in the range of 300.degree. C to 450.degree. C. The catalyst used consists essentially of oxides of vanadium, phosphorus, zirconium, and at least one element selected from manganese, boron, cadmium, silver, bismuth and zinc.
patent: 3156705 (1964-11-01), Kerr
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patent: 3868393 (1975-02-01), Reuter et al.
Ube Industries Ltd.
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