发明名称 |
HARDNESS SUPPRESSION IN UREA SOLUTIONS |
摘要 |
<p>The tendency of aqueous solutions of area and other NH-containing compositio ns to force instability of hardness factors has been found to be detrimental to processes and apparatus employing them. The reliability of these processes and apparatus is improved by the inclusion of hardness-suppressing compositions, which preferably include both a water-soluble polymer and a phosphonate. In particular, agricultural and NO X-reducing applications are, improved, especially for solutions containing urea hydrolysis products and the salts of them.</p> |
申请公布号 |
CA2120519(C) |
申请公布日期 |
2003.01.28 |
申请号 |
CA19922120519 |
申请日期 |
1992.09.23 |
申请人 |
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发明人 |
DUBIN, LEONARD;EPPERLY, WILLIAM ROBERT;SPRAGUE, BARRY NORMAND;VON HARPE, THURE |
分类号 |
B01D53/56;C02F5/14;C05C9/00;C05G3/00;C10L10/00;C10L10/02;(IPC1-7):B01D53/34 |
主分类号 |
B01D53/56 |
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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