TWO-STEP PROCESS FOR LIQUID-PHASE PRODUCTION OF OXIMES

Two-step process in the liquid phase for producing oximes at 60 - 100 DEG C and 1.5 - 5 bars, which comprises: (a) in a primary step, ammoximating a carbonylic compound with H2O2 and NH3 in the presence of a silicon, titanium and oxygen based catalyst; (b) oximating the residual carbonylic compound...

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Bibliographic Details
Main Authors CESANA, ALBERTO, MANTEGAZZA, MARIA ANGELA, PETRINI, GUIDO
Format Patent
LanguageEnglish
Korean
Published 11.06.1996
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Two-step process in the liquid phase for producing oximes at 60 - 100 DEG C and 1.5 - 5 bars, which comprises: (a) in a primary step, ammoximating a carbonylic compound with H2O2 and NH3 in the presence of a silicon, titanium and oxygen based catalyst; (b) oximating the residual carbonylic compound with a solution of hydroxylamine, obtained in its turn by oxidizing ammonia with H2O2, having a concentration comprised within the range of from 0.01 to 3%, preferably of from 0.5 to 2% by weight, in such a way as to have a molar ratio of hydroxylamine to the carbonylic compound comprised within the range of from 0.9 to 3, preferably of from 1 to 2.
Bibliography:Application Number: KR19930005261