Method for increasing the purity of amphoteric compound composit

Details Method for increasing the purity of amphoteric compound composit Method for increasing the purity of amphoteric compound composit

1981-11-23

1984-06-05

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

2601125R, 2602397, 26023975, 2603977R, 544274, 544275, 562443, 562445, 562446, 562450, 564361, C07C149243

Patent

active

044530072

ABSTRACT:
Provided is a method of increasing the purity of amphoteric compound compositions. The method is: (a) providing an amount of a crude amphoteric compound composition, (b) using a portion of the crude composition to prepare in solution a cationic salt of the amphoteric compound, (c) using another portion of the crude composition to prepare in solution an anionic salt of the amphoteric compound, (d) mixing together the solutions wherein a precipitate is formed, and (e) collecting the precipitate which is an amphoteric compound composition of higher purity than the crude composition.

REFERENCES:
patent: 3920737 (1975-11-01), Horisawa

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