COOLING AND PURIFICATION OF GAS STREAMS

Disclosed is a method for purifying and cooling a dialkyl ester A) of a gas stream containing aromatic dicarboxylic acid. Said method is characterized in that the gas stream is treated with an aliphatic dihydroxy compound B) above the melting point of the dialkyl ester A) in a first stage while the...

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Bibliographische Detailangaben
Hauptverfasser:	HOELEMANN KARL, HEITZ THOMAS, HECKMANN MANFRED, LOENING JAN MARTIN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a method for purifying and cooling a dialkyl ester A) of a gas stream containing aromatic dicarboxylic acid. Said method is characterized in that the gas stream is treated with an aliphatic dihydroxy compound B) above the melting point of the dialkyl ester A) in a first stage while the gas stream is treated with an aliphatic dihydroxy compound B) above the melting point of the dihydroxy compound B) in at least one second stage.