PROCESS FOR THE SEPARATION OF ACRYLIC ACID

PURPOSE: A process for the separation of acrylic acid is provided. CONSTITUTION: In the production process for acrylic acid through catalytic vapor-phase oxidation of propene, acrylic acid is separated from the vapor-phase oxidation reaction mixture by means of an absorbing agent containing diphenyl...

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Bibliographische Detailangaben
Hauptverfasser:	THIESSEN FRITZ DR, HAMMON ULRICH DR, HEIDA BERND, DAMS ALBRECHT DR
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:	PURPOSE: A process for the separation of acrylic acid is provided. CONSTITUTION: In the production process for acrylic acid through catalytic vapor-phase oxidation of propene, acrylic acid is separated from the vapor-phase oxidation reaction mixture by means of an absorbing agent containing diphenyl, diphenyl ether or dimethyl phthalate and is also extracted from the vapor-phase oxidation acidic water by means of a solvent containing diphenyl, diphenyl ether or dimethyl phthalate.