A method for the recovery of raw materials in the production of aspartame

摘要

The invention relates to a process for the recovery of raw materials in the aspartame preparation process from aqueous process streams also containing dissolved salt wherein the aqueous process streams each separately, or in combination with one or more other of these flows, is subjected to nanofiltration with the aid of a membrane, and Then the retentate is present in the resulting raw material is recovered in a known manner or the retentate without further operations in the aspartame preparation process is returned. The invention also relates to a device for carrying out such a method.