Liquid purification or separation – Processes – Chemical treatment
Patent
1991-03-26
1993-10-26
Lovering, Richard D.
Liquid purification or separation
Processes
Chemical treatment
210757, 25218828, C02F 168, C02F 170, C09K 1520
Patent
active
052563111
ABSTRACT:
An improved oxygen scavenger for aqueous mediums is disclosed which is a hydroxyalkylhydroxylamine. The material may be catalyzed with a compound such as copper, hydroquinone, benzoquinone, 1,2-naphthoquinone-4-sulfonic acid, pyrogallol and t-butylcatechol. Hydroxyalkyl substituted hydroxyalmines of the general formula HO-N-[CH.sub.2 --CH(OH)--R].sub.2 wherein R is H or C.sub.1 to C.sub.10 alkyl have been found to be effective oxygen scavengers for aqueous systems such as industrial water system.
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Burgmayer Paul R.
Rossi Anthony M.
Anthony Joseph D.
Betz Laboratories Inc.
Boyd Steven D.
Lovering Richard D.
Ricci Alexander D.
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