[EN] METHOD FOR PREPARING METHIONINE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE MÉTHIONINE
申请人:EVONIK DEGUSSA GMBH
公开号:WO2018114640A1
公开(公告)日:2018-06-28
The present invention relates to a method for preparing methionine or methionine salts. In particular, the invention describes the step of preparing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN) from 3-methylthiopropanal (MMP) and hydrogen cyanide (HCN) in the presence of ammonia by bringing a gaseous mixture comprising HCN and ammonia into contact with MMP.
本发明涉及一种制备蛋氨酸或蛋氨酸盐的方法。具体而言,该发明描述了从3-甲基硫代丙醛(MMP)和氰化氢(HCN)在氨的存在下制备2-羟基-4-(甲硫基)丁腈(MMP-CN)的步骤,方法是将含有HCN和氨的气体混合物与MMP接触。