Closed system multistage superpurification recrystallization

Details Closed system multistage superpurification recrystallization Closed system multistage superpurification recrystallization

1993-06-17

1995-11-14

Straub, Gary P.

Chemistry: physical processes

Physical processes

Crystallization

23302R, 4222451, 422254, 585815, C03B 708

Patent

active

054662664

ABSTRACT:
A method and apparatus are provided for superpurifying crystallizable substances to a purity level of 99.999%. Included is a closed multistage system which maintains controlled transfers of material between a plurality of stages. The method and apparatus avoid the need to transfer solid crystals from one stage to another and effect efficient and very effective separation of purified crystals from their mother liquor.

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