Method for recovering 4-methylthiazole-5-formaldehyde and triphenylphosphine oxide from cefditoren mother nucleus production waste liquid

The invention discloses a method for recovering 4-methylthiazole-5-formaldehyde and triphenylphosphine oxide from cefditoren mother nucleus production waste liquid, and belongs to the technical field of medical intermediate recovery. The method comprises the steps of at the temperature of 0-40 DEG C, adding a pyrosulfite solution into the cefditoren mother nucleus production waste liquid, stirring, standing for layering, collecting water layers, adding the pyrosulfite solution into an organic layer, stirring, standing for layering, merging the water layers to recover 4-methylthiazole-5-formaldehyde, and recovering triphenylphosphine oxide from the organic layer. The method has the advantages of being simple and convenient to operate, good in recovery rate, high in purity and the like, pollutant emission can be reduced, the cost can be reduced, environmental protection is facilitated, the method is suitable for industrial production, and economic benefits and social benefits are remarkable. 本申请公开了一种从头孢托仑母核生产废液