| 发明名称 |
Corrosion control. |
| 摘要 |
<p>A method of removing iron contaminants in an aqueous system by introducing and maintaining within the system an ortho dihydroxylaromatic compound having at least one electron withdrawing group pendant from the aromatic ring and, further, a method of inhibiting calcium scale formation in the presence of iron contaminants by utilizing a dihydroxylaromatic compound in combination with a calcium scale inhibitor.</p> |
| 申请公布号 |
EP0346139(B1) |
申请公布日期 |
1994.10.26 |
| 申请号 |
EP19890305838 |
申请日期 |
1989.06.09 |
| 申请人 |
W.R. GRACE & CO.-CONN. |
发明人 |
KREH, ROBERT PAUL;LUNDQUIST, JOSEPH THEODORE;HENRY, WAYNE LAMAR;KELLY, JOHN ARTHUR;KUHN, VINCENT ROBERT |
| 分类号 |
C09K15/06;C02F5/08;C02F5/10;C02F5/12;C02F5/14;C09K15/08;C09K15/14;C09K15/20;C09K15/24;C09K15/26;C23F11/12;C23G1/24;(IPC1-7):C02F1/64;C23F11/173 |
主分类号 |
C09K15/06 |
| 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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