PRODUCTION OF DIALKYL CARBONATE

Dialkyl carbonates can be prepared by reaction of carbon monoxide with alkyl nitrites in a continuous gas phase reaction, a platinum metal catalyst on an aluminosilicate zeolite having acidic centres, preferably in the H form, being employed as the support and, if appropriate, an addition of a compo...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	AREKUSANDAA KURAUZENAA, HAINTSU RANTOSHIYAITO, EERIHI BORUTAASU, ROTAA PUTSUPE
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Dialkyl carbonates can be prepared by reaction of carbon monoxide with alkyl nitrites in a continuous gas phase reaction, a platinum metal catalyst on an aluminosilicate zeolite having acidic centres, preferably in the H form, being employed as the support and, if appropriate, an addition of a compound of antimony, bismuth, aluminium, copper, vanadium, niobium, tantalum, tin, iron, cobalt, nickel or a mixture of several of them being employed on this catalyst and hydrogen halide being added intermittently or continuously in the course of the reaction. In this process, the dialkyl carbonates are formed in nearly quantitative selectivity; the corresponding dialkyl-oxalates can in most cases not be detected.