Oxygen scavenger and the method for oxygen reduction treatment

Details Oxygen scavenger and the method for oxygen reduction treatment Oxygen scavenger and the method for oxygen reduction treatment

2006-09-26

2006-09-26

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Processes

Chemical treatment

C210S757000, C252S188280, C252S390000, C252S392000, C422S016000

Reexamination Certificate

active

07112284

ABSTRACT:
Oxygen scavenger which can exhibit excellent oxygen reduction effect in a wide variety of conditions is provided as an alternative volatile oxygen scavenger to hydrazine. The oxygen scavenger contains a heterocyclic compound having N-substituted amino group such as 1-amino-4-methylpiperazine and a hydroxylamine compound such as N,N-diethylhydroxylamine. The oxygen scavenger may further contain a polyhydric phenol type catalyst such as pyrogallol. By adding the oxygen scavenger to feed water of a water system of a boiler, oxygen reduction treatment of the water system is carried out.

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