High-productivity process for non-phenolic ethoxylates

The present invention provides a process for the production of an ethoxylate involving charging a portion of product from a previous preparation (a "heel") or an ethoxylate to a reactor, optionally, charging from about 0.2 wt.% to an amount equal or greater than the amount of heel of a C 1...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	REESE, JACK DR, MCDANIEL, KENNETH G
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention provides a process for the production of an ethoxylate involving charging a portion of product from a previous preparation (a "heel") or an ethoxylate to a reactor, optionally, charging from about 0.2 wt.% to an amount equal or greater than the amount of heel of a C 1 - C 56 non-phenolic alcohol to the reactor, charging ethylene oxide to activate a double metal cyanide ("DMC") catalyst, adding C 1 - C 56 non-phenolic alcohol simultaneously with ethylene oxide for a portion of the process and continuing addition of ethylene oxide following completion of the simultaneous C 1 - C 56 non-phenolic alcohol and ethylene oxide addition. The process of the present invention provides significant improvements in cycle time and safety in producing ethoxylates which may find use in or as surfactants.