Liquid purification or separation – Processes – Chemical treatment
Patent
1983-03-10
1985-09-10
Hruskoci, Peter
Liquid purification or separation
Processes
Chemical treatment
210754, 210757, 252389A, 422 13, 422 16, 422 19, 423219, C02F 170
Patent
active
045404941
ABSTRACT:
A method for removal of oxygen dissolved in water, especially from reservoir drinking water, and for preservation purposes based on hydrazine, having no organic activators and assuring a high reaction velocity with respect to dissolved oxygen within a broad pH-range at low temperature and without a time-dependent reduction of its effectiveness.
Cationic and anionic complexes of trivalent cobalt with inorganic ligands, or mixtures thereof, are used as activators. Preferred activators are (Co(NH.sub.3).sub.5 Cl)Cl.sub.2 and Na.sub.3 Co(NO.sub.2).sub.6.
Hydrazine solutions with these activators are suitable for the removal of oxygen from gases.
REFERENCES:
patent: 4022711 (1977-05-01), Noack
patent: 4096090 (1978-06-01), Noack
patent: 4287072 (1981-09-01), Beecher
Fuchs Wilfried
Kaufmann Vendelin
Kober Roland
Renker Wolfgang
Richter Horst
Hruskoci Peter
VEB Leuna Werke "Walter Ulbricht"
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