Catalytic process for the ammoximation of carbonyl compounds
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United States of America Patent
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Oct 2, 2012
Grant Date -
Aug 4, 2011
app pub date -
Feb 4, 2010
filing date -
Feb 4, 2010
priority date (Note) -
Expired
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Abstract
The present disclosure pertains to a process for preparing an oxime in which a carbonyl compound is reacted in the liquid phase with NH3 and H2O2 in the presence of a catalyst to form the corresponding oxime, wherein the catalyst comprises a catalytic component selected from the oxides of metals of group 5 and group 6. The use of a niobia catalyst is particularly preferred. The process according to the disclosure is suitable for the manufacture of numerous oximes, in particular cyclohexanone oxime.
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