METHOD OF CRYSTALLIZATION OF ALPHA-L-ASPARTYL-L- PHENYLALANINE FROM AQUEOUS SOLUTION Russian patent published in 2000 - IPC

Abstract RU 2155771 C2

FIELD: chemical industry. SUBSTANCE: described is improved method of crystallization of alpha-L-aspartyl-L-phenylalanine methyl ether (aspartam) from aqueous solution by conductive cooling, to avoid turbulence in crystallization system where crystallization is carried out when temperature is not lower than 10 C in the presence of at least 0.1 wt % of α ketone, amount of ketone and temperature being selected for each individual ketone so that dohomeneous system of solvent is present as crystallization beings and open skeleton of aspartam crystals is formed. EFFECT: more efficient crystallization method. 14 cl, 2 ex, 1 tbl

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RU 2 155 771 C2

Authors

Marinus Petrus Vil'Khel'Mus Marija Rejkers

Aleksandr Peter Marija Vrinzen

Dates

2000-09-10—Published

1996-06-28—Filed