METHOD OF RECTIFICATION SEPARATION OF (METH)ACRYLIC ACID FROM A MIXTURE CONTAINING AS A MAIN COMPONENT (METH)ACRYLIC ACID AND LOWER ALDEHYDES AS MINOR WITHIN A RECTIFICATION COLUMN FORMED BY IMPOVERISHING AND ENRICHING SECTIONS

METHOD OF RECTIFICATION SEPARATION OF (METH)ACRYLIC ACID FROM A MIXTURE CONTAINING AS A MAIN COMPONENT (METH)ACRYLIC ACID AND LOWER ALDEHYDES AS MINOR WITHIN A RECTIFICATION COLUMN FORMED BY IMPOVERISHING AND ENRICHING SECTIONS

In the sepn. of (meth)acrylic acid (I) from mixts. contg. (I) as main prod. and lower aldehydes as by-prods. by rectification in a column with a distn. zone and a concn. zone, the mixt. is not supplied to the column directly. Instead, it is passed to a heated dwell vessel connected to the concn. zon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAMMON ULRICH DR, HERBST HOLGER DR
Format: Patent
Sprache:cze ; eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:In the sepn. of (meth)acrylic acid (I) from mixts. contg. (I) as main prod. and lower aldehydes as by-prods. by rectification in a column with a distn. zone and a concn. zone, the mixt. is not supplied to the column directly. Instead, it is passed to a heated dwell vessel connected to the concn. zone, in which the mixt. is kept boiling, and the sump liquid from this vessel is fed to the column.