Process for recovery of raw materials in the aspartame preparati

Details Process for recovery of raw materials in the aspartame preparati Process for recovery of raw materials in the aspartame preparati

1994-08-30

1996-03-26

Fortuna, Ana M.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210652, 210653, 210636, 210639, 127 34, 127 42, B01D 6100

Patent

active

055017975

ABSTRACT:
A process is described for the recovery of raw materials in the aspartame preparation process from aqueous process streams which also contain dissolved salt. The process comprises subjecting the streams to nanofiltration with the aid of a composite membrane having specified retention values to obtain a retentate. The raw materials present in the retentate are recovered or the retentate is returned to the aspartame preparation process without any further processing. An apparatus for carrying out the process is also described.

REFERENCES:
patent: 3786039 (1974-01-01), Ariyoshi
patent: 4116768 (1978-09-01), Isowa et al.
patent: 4259183 (1981-03-01), Cadotte
patent: 4806244 (1987-07-01), Guilheim
patent: 5147533 (1992-09-01), Waite
patent: 5277819 (1994-01-01), Abrams
patent: 5304307 (1994-04-01), Linder et al.
patent: 5350681 (1994-09-01), Iacobucci et al.
Chemical Abstracts, vol. 108, No. 7, Feb. 15, 1988, p. 780, 108:56620t.

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