| 发明名称 |
USE OF A DUPLEX STAINLESS STEEL IN A PHOSPHORIC ACID PRODUCTION SYSTEM |
| 摘要 |
<p>The present disclosure relates to the use of a duplex stainless steel as heat exchanger material in a phosphoric acid production system using the wet method. The steel has the following composition in percent by weight: C max 0.03 Si max 0.5 Mn max 3 Cr 26-29 Ni 4.9-10 Mo 3-5 N 0.35-0.5 B max 0.0030 Co max 3.5 W max 3 Cu max 2 Ru max 0.3 balance Fe and normal occurring impurities.</p> |
| 申请公布号 |
EP2215421(A4) |
申请公布日期 |
2010.10.06 |
| 申请号 |
EP20080841210 |
申请日期 |
2008.10.24 |
| 申请人 |
SANDVIK INTELLECTUAL PROPERTY AB |
发明人 |
RONNETEG, SABINA;TERSMEDEN, KNUT;NYSTROEM, ANNA-LENA |
| 分类号 |
F28F21/08;C01B25/22;C01B25/234;C22C38/40;C22C38/42;C22C38/44;C22C38/52;C22C38/54;C22C38/58 |
主分类号 |
F28F21/08 |
| 代理机构 |
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代理人 |
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