Continuous production of acrylic esters

Continuous production of acrylic esters

Acrylate esters of C2- 4 alcohols are made by continuously contacting b -propiolactone with a C2- 4 olefine in the presence of sulphuric acid at a concentration of 70% to 100% by weight and at a temperature of 65 DEG to 130 DEG C., the olefine being introduced into the reaction vessel at such a rate...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHRIST B?UNO, BANK GEORG VON, STENGEL GUENTHER
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Acrylate esters of C2- 4 alcohols are made by continuously contacting b -propiolactone with a C2- 4 olefine in the presence of sulphuric acid at a concentration of 70% to 100% by weight and at a temperature of 65 DEG to 130 DEG C., the olefine being introduced into the reaction vessel at such a rate that the ratio of the amount thereof reacted to supplied is between 1: 10 and 1: 100, and may be supplied in admixture with an inert gas. The by-products are acrylic acid, dialkyl sulphates, ethers and alkanols. The examples describe the conversion of ethylene and propylene to ethyl acrylate and isopropyl acrylate respectively.