| 发明名称 |
COMPOSITIONS FOR SCALE INHIBITION FOR KRAFT DIGESTERS |
| 摘要 |
Inhibition of calcium scale under the extreme temperature conditions found in pulp digesters has been accomplished by employing certain mixtures of polyaminopoly(alkylenephosphonic acids) together with nonionic surfactants. Diethylenetriaminepenta (methylenephosphonic acid) together with a polyethoxynonylphenol has been found especially effective for the purpose. 35,129-F
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| 申请公布号 |
CA1323470(C) |
申请公布日期 |
1993.10.26 |
| 申请号 |
CA19890587464 |
申请日期 |
1989.01.04 |
| 申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
CRUMP, DRUCE K.;COOPER, LANCE A.;HOPKINS, THOMAS M. |
| 分类号 |
C02F5/14;C11D1/66;C11D3/36;C11D10/02;D21C9/00;(IPC1-7):D21H21/02 |
主分类号 |
C02F5/14 |
| 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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