METHOD FOR CLEANING PLATE COLUMNS USED FOR RECTIFYING LIQUIDS CONTAINING (METH)ACRYLIC ACID AND/OR THE ESTERS THEREOF

In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differentia...

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Bibliographische Detailangaben
Hauptverfasser:	SCHRÖDER, Jürgen, JÄGER, Ulrich, MÜLLER-ENGEL, Klaus, Joachim, DIEHL, Volker, HAMMON, Ulrich, SCHLIEPHAKE, Volker
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY CLEANING CLEANING IN GENERAL METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differential pressure over all trays of at least 0.5 mbar/tray.