Multistep process for the liquid phase ammoximation of...

Details Multistep process for the liquid phase ammoximation of... Multistep process for the liquid phase ammoximation of...

C - Chemistry, Metallurgy

07

C

C07C 249/04 (2006.01) C07C 251/34 (2006.01)

Patent

CA 2059806

A multistep process for the liquid phase ammoximation of carbonyl comp- ounds with H202 and NH3, at 60 - 100°c, at 1.5 - 5 bar and in the presence of a catalyst based on silicon, titanium and oxygen, charact- erized in that: a) in one or more primary steps, the H202 : carbonyl compound molar ratio ranges from 0.9 to 1.15 by mols and the carbonyl component conversion is carried out up to at least 95%; b) in a last (exhaustion) step the H202 : carbonyl compound ratio is in a higher range, i.e. from 1.5 to 3.0 by mols.

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