Ammonium 2-hydroxy-4-(methylthio) - butyrate production process, a mixture of the liquid containing the same and their use

摘要

(57) butyric acid 2-hydroxy-4-methylthio use the [summary] ammonia and method of manufacturing (MHAAS) ammonium-2-hydroxy-4-methylthio -n- butyrate by treatment (MHA) methyl-mercaptopurine propionaldehyde (MMP) isolating MHA containing oligomers of higher and more dimer from the reaction mixture obtained by the mineral acid hydrolysis cyanohydrin (MMP-CH) - methyl mercapto propionic aldehyde thus obtained and the addition of (HCN) cyanate to how to are known. According to the present invention, treated to obtain the aqueous raffinate and a first organic extract a first reaction mixture comprising a solvent at all or not mixed only partially with water in an inert, organic extracts of the first and allowed to separate into an aqueous raffinate and a second organic extract second by phase separation using ammonia, at that time, was carried out in an aqueous raffinate of the second back-extraction of the MHA as MHAAS by forming a salt, By isolating MHAAS from the aqueous raffinate of the second, by a process based on only the "liquid" process, significantly lower at excellent flow containing the same, and ammonium-2-hydroxy-4-methylthio -n- butyrate I want to provide a mixture having oligomers percentage. Animal feed supplements, methionine alternative substances.