Crystallization process

Details Crystallization process Crystallization process

1980-06-18

1981-12-08

Therkorn, Ernest G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260707, C07D23902, C07D21356

Patent

active

043049176

ABSTRACT:
In the crystallization of a material from a liquid solution thereof wherein normal rapid cooling produces a non-filterable solid, the mixture of material and liquid is subjected to a high shear force field to produce a filterable slurry of the material, with the mixture being subjected to the shear force either during the cooling or subsequent thereto. The process is particularly applicable to recovering nicotinamide from a supersaturated aqueous solution thereof.

REFERENCES:
patent: 2743197 (1956-04-01), Hastings
patent: 2833835 (1958-05-01), Green
patent: 4008241 (1977-02-01), Gelbein
Crystallization: Theory and Practice, Van Hook Reinhold Publishing Corp., N.Y., 1961, pp. 212-216.

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