Purification of hydroxylamine

Details Purification of hydroxylamine Purification of hydroxylamine

C - Chemistry, Metallurgy

01

B

C01B 21/20 (2006.01) C01B 21/14 (2006.01)

Patent

CA 2296699

The invention provides a method for purification of hydroxylamine so as to have a substantial reduction of cations and anions. The method involves passing a solution of hydroxylamine through at least one strong acid ion exchange bed and then through at least one strong base anion exchange resin bed. The strong acid ion exchange bed is preconditioned with dilute hydrochloric acid.

Cette invention se rapporte à un procédé servant à la purification d'hydroxylamine, de façon à obtenir une réduction sensible des cations et des anions. Ce procédé consiste à faire passer une solution d'hydroxylamine à travers au moins un lit d'échange ionique à acide fort et ensuite à travers au moins un lit de résine d'échange anionique à base forte. Le lit d'échange ionique à acide fort est préconditionné avec de l'acide chlorhydrique dilué.

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