发明名称 |
Method for the inhibition of oxygen corrosion in aqueous systems by the use of a tannin activated oxygen scavenger. |
摘要 |
A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: <CHEM> wherein each of R1, R2 and R3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems. <IMAGE> |
申请公布号 |
EP0588494(A1) |
申请公布日期 |
1994.03.23 |
申请号 |
EP19930306483 |
申请日期 |
1993.08.17 |
申请人 |
W.R. GRACE & CO.-CONN. |
发明人 |
GREAVES, BRIAN;POOLE, STEPHEN CLIFFORD;HWA, CHIH MING;FAN, JOSEPH CHWEI-JER |
分类号 |
C02F1/20;C02F1/54;C23F11/08;C23F11/10;C23F11/16 |
主分类号 |
C02F1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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