METHOD OF PREPARING PHTHALIC ACID DIETHYL ESTER

METHOD OF PREPARING PHTHALIC ACID DIETHYL ESTER

organic chemistry, more particularly preparation of diethyl phthalate. SUBSTANCE: method comprises reacting phthalic anhydride and ethyl alcohol in film mode in the presence of solid aluminium gamma oxide catalyst impregnated with sulfuric anhydride in amount of at least 15% at 120-130 C. EFFECT: si...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MALIN A.S, VDOVETS M.Z, PARFENOV V.V, ENIKEEV A.KH, LASKIN B.M
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:organic chemistry, more particularly preparation of diethyl phthalate. SUBSTANCE: method comprises reacting phthalic anhydride and ethyl alcohol in film mode in the presence of solid aluminium gamma oxide catalyst impregnated with sulfuric anhydride in amount of at least 15% at 120-130 C. EFFECT: simplified process. 3 cl, 1 dwg, 1 ex, 1 tbl