Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes

Distillation of an isomeric mixture of diisocyanatodiphenylmethanes containing at least the 2,2'-, 2,4' and 4,4'-isomers is such that at least in one step a partitioned column is used.

Bibliographische Detailangaben

Hauptverfasser:	WOLF ULRICH, THELEN BERND, SCHAL, HANS-PETER
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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