Amphoteric ion exchangers

Details Amphoteric ion exchangers Amphoteric ion exchangers

B - Operations, Transporting

01

J

B01J 43/00 (2006.01)

Patent

CA 2641370

The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) Image but also -(CH2)m NR1R2 groups and/or if appropriate -(CH2)m NR1R2R3 groups, wherein m is an integer from 1 to 4 and R1,R2, R3 in each case independently of one another are hydrogen, -CH3, - CH2CH3, -CH2CH2CH3, benzyl, -OCH2CH3 or -CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.

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