| 发明名称 |
Method for the production of highly pure nitric acid |
| 摘要 |
In a new and improved process for preparing high-purity nitric acid by distillation or rectification of nitric acid, crude nitric acid or mixtures thereof in a column, 85-95% strength by weight nitric acid, crude nitric acid or a mixture thereof is distilled at from 70 to 110° C. and a pressure of from 0.1 to 2 bar.
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| 申请公布号 |
US2005074389(A1) |
申请公布日期 |
2005.04.07 |
| 申请号 |
US20030473212 |
申请日期 |
2003.09.29 |
| 申请人 |
HOFMANN PAUL;SANDEN FRANZ JOSEF;DORFLINGER WALTER |
发明人 |
HOFMANN PAUL;SANDEN FRANZ JOSEF;DORFLINGER WALTER |
| 分类号 |
C01B21/46;(IPC1-7):C01B21/44 |
主分类号 |
C01B21/46 |
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