PURIFICATION METHOD OF LIGNOPHENOL DERIVATIVE

PROBLEM TO BE SOLVED: To provide a method for efficiently separating and purifying a lignophenol derivative.SOLUTION: A lignophenol derivative is separated and purified through steps of: preparing an aqueous dispersion liquid of a phenol derivative solution containing a lignophenol derivative; treat...

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Bibliographische Detailangaben
Hauptverfasser:	YAMADA KIYOSHI, SHIBAMOTO NOBUYORI, FUNAOKA MASAMITSU, MIKI KEIGO, ICHIKAWA NORIFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for efficiently separating and purifying a lignophenol derivative.SOLUTION: A lignophenol derivative is separated and purified through steps of: preparing an aqueous dispersion liquid of a phenol derivative solution containing a lignophenol derivative; treating the aqueous dispersion liquid with methylethyl ketone to separate a methylethyl ketone layer; and adding the methylethyl ketone layer to a poor solvent of the lignophenol derivative to separate a precipitate.