METHOD AND APPARATUS FOR RECOVERING STARTING MATERIALS IN ASPARTAME PRODUCTION PROCESS Russian patent published in 1999 - IPC

Abstract RU 2128187 C1

FIELD: peptide synthesis. SUBSTANCE: method consists in using membrane nanofiltration of aqueous process streams containing also dissolved salt by filtering each of the process streams or combination of two or several such streams through composite membrane with specific retention of components above 100 D and monovalent salts. Starting materials contained in retained fraction are recovered by using techniques well known in art or retained fraction is returned into aspartame production process with no supplementary treatment. Simultaneously, organic components are concentrated in process stream(s). Apparatus needed for implementation of invention is also provided. EFFECT: enhanced recovery efficiency.

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RU 2 128 187 C1

Authors

Gert Vitze Meindersma

Fransiskus Khendrik Paul' Vergossen

Dates

1999-03-27—Published

1994-08-29—Filed