Method for producing 2-hydroxy-4-methylthiobutyric acid (MHA), MHA and uses thereof

(57) Abstract: prussic acid a (HCN) were added to the methylmercapto-propionaldehyde (MMP), this time resulting methylmercapto-propionaldehyde - cyanohydrin the (MMP-CH) from the reaction mixture obtained by hydrolyzing with sulfuric acid MHA is isolated, and an organic solvent immiscible with water at approximately the time the reaction mixture, a liquid - is contacted with a liquid extraction system to produce an extract solution having an MHA from the solvent and the reaction mixture MHA from the extraction solution it is obtained by evaporation as extract is known. Very small dimeric relates workup of the reaction product that allows production of high density product having a content of oligomers and by-products, as simple methods price favorable invention, residual concentrated by evaporation extract is 4 wt% or less of water, preferably characterized in that it is performed to have a 2% by weight of water. Animal feed supplements, such as animal feed supplement for mixture with methionine or ammonium MHA.