US Patent No: 5,660,736
Number of patents in Portfolio can not be more than 2000
Sodium sulfoxylate formaldehyde as a boiler additive for oxygen scavenging
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Aug 26, 1997
Issued date -
Jun 21, 1996
filing date -
08/667,662
serial no -
Expired
status
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Abstract
The invention is a method for removing dissolved oxygen from alkaline water which comprises adding to alkaline water containing dissolved oxygen an effective oxygen-scavenging amount of a water-soluble sulfoxylate. A preferred material is sodium formaldehyde sulfoxylate.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,269,717 Boiler additives for oxygen scavenging | 40 | 1980 | |
| 4,363,734 1,3-Dihydroxy acetone as an oxygen scavenger for water | 13 | 1981 | |
| 5,258,125 Carbohydrazones as boiler water oxygen scavengers | 11 | 1992 | |
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| 5,078,894 Formulations for iron oxides dissolution | 9 | 1990 | |
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| 4,968,438 Gallic acid as an oxygen scavenger | 12 | 1988 | |
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| 5,108,624 Method for deoxygenating a liquid | 7 | 1990 | |
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| 5,073,270 Use of reducing agents to control scale deposition from high temperature brine | 18 | 1989 | |