Crystallization of .alpha.-L-aspartyl-L-phenylalanine methyl est

Details Crystallization of .alpha.-L-aspartyl-L-phenylalanine methyl est Crystallization of .alpha.-L-aspartyl-L-phenylalanine methyl est

1995-12-20

1997-06-10

Barts, Samuel

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C22902

Patent

active

056377541

ABSTRACT:
A method for crystallizing aspartame comprising the combination of steps of: (A) providing (i) dispersed droplets of a fluid mixture comprising aspartame and water, and (ii) a water-immiscible fluid zone; (B) passing the dispersed droplets through the water-immiscible fluid zone under effective temperature and dispersive conditions to effect cooling of the dispersed droplets so that a state of initial relative supersaturation of aspartame between about 1 and 6 is formed within the dispersed droplets; (C) collecting the dispersed droplets in the supersaturated state in a substantially static collection zone so that a slurry comprising a crystalline form of aspartame is formed from the droplets. The method provides for rapid, efficient cooling of aspartame solutions and yields aspartame crystals with desirable qualities.

REFERENCES:
patent: 4962222 (1990-10-01), Mita et al.
European Search Report, Document No. EP 94 20 3726 dated May 30, 1995.

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