| abstract |
The invention relates to a method for producing a methionine salt, in particular for producing a methionine salt starting from the precursors 3-methylmercaptopropionaldehyde (MMP) and hydrogen cyanide (HCN) or starting from at least one component that can be produced from said raw materials, such as methylmercaptopropionaldehyde cyanhydrin (MMP-CN). In particular, the invention relates to the alkaline hydrolysis of 5-(2-methylmercapto)hydantoine in a column. The invention further relates to a reaction system that is suitable for said method and comprises a reactive distillation column, and to the use of the reaction system. |