Process for the purification of nitrobenzaldenhyde

Crude nitrobenzaldehyde can be substantially purified from the undesired positional isomers if a treatment with 100-10,000% by weight of water and 1-30% by weight of an emulsifier, all with reference to the dry weight of the crude nitrobenzaldehyde, is undertaken at a temperature of 30 DEG -140 DEG...

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Bibliographic Details
Main Authors BLANK; HEINZ U, STREICHER; WILLI
Format Patent
LanguageEnglish
Published 20.03.1990
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Crude nitrobenzaldehyde can be substantially purified from the undesired positional isomers if a treatment with 100-10,000% by weight of water and 1-30% by weight of an emulsifier, all with reference to the dry weight of the crude nitrobenzaldehyde, is undertaken at a temperature of 30 DEG -140 DEG C. and at a pH of 3-14.
Bibliography:Application Number: US19880231740