PROCESS FOR THE PREPARATION OF METHIONINE

PROCESS FOR THE PREPARATION OF METHIONINE

The present invention relates to a process for the preparation of methionine comprising the step of contacting a solution or suspension comprising 2-amino-4-(methylthio)butanenitrile and/or 2-amino-4-(methylthio)butaneamide with water in the presence of a catalyst to give a methionine comprising mix...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NORDSCHILD, Anja, RENNER, Christian, REUS, Christian, FISCHER, Achim, BILZ, Jürgen, RONNEBURG, Axel, BORGMANN, Cornelia, GEIST, Lucas
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates to a process for the preparation of methionine comprising the step of contacting a solution or suspension comprising 2-amino-4-(methylthio)butanenitrile and/or 2-amino-4-(methylthio)butaneamide with water in the presence of a catalyst to give a methionine comprising mixture, wherein the catalyst comprises CeO2 comprising particles, wherein the CeO2 comprising particles have a BET surface area of from 175 to 300+/−10% m2/g measured according to DIN ISO 9277-5 (2003), a mean maximum Feret diameter xFmax, mean of from 3+/−10% to 40+/−10% nm and a mean minimum Feret diameter xFmin, mean of from 2+/−10% to 30+/−10% nm, both measured according to DIN ISO 9276-6 (2012).