Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Patent
1994-01-28
1996-03-05
McFarlane, Anthony
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
502208, 502353, 423305, 549259, 549262, B01J 2322
Patent
active
054967872
ABSTRACT:
A process for producing a vanadium-phosphorus oxide-containing catalyst precursor, which comprises (a) introducing into an organic solvent a vanadium alkoxide as a pentavalent vanadium compound and a phosphorus compound in the presence of a reducing agent capable of reducing the pentavalent vanadium compound to a tetravalent state, (b) hydrolyzing at least a part of the vanadium alkoxide before or after the introduction of the phosphorus compound, and (c) heating the vanadium-containing liquid medium obtained in step (b), in the presence of the phosphorus compound to reduce at least a part of vanadium to a tetravalent state.
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Applied Catalysts A: General, 95 (1993), L. M. Cornaglia, et al., "Chemistry of vanadium-phosphorus oxide catalyst preparation", 1993, pp. 117-130.
Hatano Masakatsu
Ito Masumi
Murayama Masayoshi
Shima Kenji
McFarlane Anthony
Mitsubishi Chemical Corporation
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