METHOD FOR PRODUCING VANILLIN

The present invention relates to a method for producing vanillin, including the steps of: (A) distilling a solution containing crude vanillin and an aliphatic dicarboxylic acid dialkyl ester to obtain a vanillin solution; and (B) subjecting the vanillin solution to anti-solvent crystallization. The...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUSHIMA, Yusuke, OHKUBO, Yasutaka, KINJO, Yu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	The present invention relates to a method for producing vanillin, including the steps of: (A) distilling a solution containing crude vanillin and an aliphatic dicarboxylic acid dialkyl ester to obtain a vanillin solution; and (B) subjecting the vanillin solution to anti-solvent crystallization. The method for producing vanillin according to the present invention enables production of high-purity vanillin with industrially sufficient efficiency without use of a special apparatus.