PROCESS FOR PURIFYING CRUDE 4-AMINOPHENOL

A process for the purification of crude 4-aminophenol which was prepared by the catalytic hydrogenation of nitrobenzene in aqueous sulfuric acid is described involving: adjusting the pH of an aqueous solution of crude 4-aminophenol to pH 4.0-5.0 at a temperature between 75.degree.C and 85.degree.C;...

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Bibliographische Detailangaben

Hauptverfasser:	RAFF, DWIGHT E., II, KAO, JAMES T.F
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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