发明名称 CATALYST-FREE AMMONIA HYDROLYSIS OF METHIONINE HYDANTOIN
摘要 <p>The invention relates to a method for the continuous preparation of methionine, without the isolation of intermediate products, from the hydantoin of methionine by means of catalyst-free ammonia hydrolysis of an aqueous starting solution essentially comprising said hydantoin and at least one associated methionine-producing derivative product, e.g. selected from the group containing hydantoic acid, ureidobutyramide and 2-amino-4-(methylthio)butanamide. The hydrolysis takes place at a temperature of between 100 and 250 °C using a NH&lt;SUB&gt;3&lt;/SUB&gt;/hydantoin molar ratio of between 5 and 50.</p>
申请公布号 WO2007034065(A1) 申请公布日期 2007.03.29
申请号 WO2006FR02139 申请日期 2006.09.19
申请人 ADISSEO FRANCE S.A.S.;CASSE, CLAUDE;ROSSI, JEAN-CHRISTOPHE;MEDARD, ALAIN 发明人 CASSE, CLAUDE;ROSSI, JEAN-CHRISTOPHE;MEDARD, ALAIN
分类号 C07C319/20;C07C321/14 主分类号 C07C319/20
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