发明名称 |
Scale-inhibiting compositions and process for inhibiting scale in systems exposed to water. |
摘要 |
<p>Compositions which inhibit the formation of scale due to calcium carbonate precipitation in recirculating water systems comprise a mixture of polyvinylpyrrolidone and ami- notri(methylenephosphonic acid). The compositions are preferably present in the water system in an amount from 2 to 25 ppm and preferably contain from 1 to 10 moles of the phosphonic acid per mole of polyvinylpyrrolidone.</p> |
申请公布号 |
EP0094822(A1) |
申请公布日期 |
1983.11.23 |
申请号 |
EP19830302754 |
申请日期 |
1983.05.16 |
申请人 |
UOP INC. |
发明人 |
MENKE, RUSSELL OWEN;BORTNIK, MICHAEL |
分类号 |
C09K3/00;C02F5/00;C02F5/08;C02F5/10;C02F5/12;C02F5/14;C23F14/02;(IPC1-7):02F5/14 |
主分类号 |
C09K3/00 |
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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