B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/98
B01J 27/14 (2006.01) B01J 27/198 (2006.01) C07C 51/215 (2006.01) C07C 51/25 (2006.01)
Patent
CA 1073437
Abstract of the Disclosure The process for the production of a mixed-oxide oxidation catalyst which, based on vanadium and penta- valent phosphorus, has an atomic ratio of phosphorus to vanadium between 1.05 to 1 and 1.10 to 1. The process involves reacting a salt of tetravalent vanadium, dissolved in a non-oxidizing acid aqueous solution, with ortho- phosphoric acid. The resultant soluble vanadium salt complex, after concentrating the solution, is precipitated by adding water. The precipitate is dried. The dried precipitate is put or formed into the desired form. The formed, dried precipitate is subjected to a heat treatment of at least 300°C. A mixed-oxide oxidation catalyst is obtained, which may be used in the production of maleic anhydride.
243368
Fontana Pietro
Stefani Giancarlo
LandOfFree
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