Process for the preparation and purification of a hydroxylammoni

Details Process for the preparation and purification of a hydroxylammoni Process for the preparation and purification of a hydroxylammoni

1993-07-01

1994-11-08

Dawson, Robert A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210650, 210653, B01D 6100

Patent

active

053623983

ABSTRACT:
The invention relates to a process for the preparation and purification of a hydroxylammonium salt solution, wherein the hydroxylammonium salt solution is separated by filtration from an aqueous reaction mixture, containing solid catalyst particles among other things, the filtration technique applied being a crossflow filtration technique, the pore diameter of the filter medium being 0.01-10 .mu.m and the catalyst particles having an average size of 0.1-25 .mu.m.

REFERENCES:
patent: 3940442 (1976-02-01), de Rooij
patent: 4081516 (1978-03-01), Scholten et al.
patent: 4414401 (1983-11-01), Wintermeyer et al.
patent: 4851125 (1989-07-01), Dotson et al.

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