发明名称 |
On-Line-Analyse der Prozeßgase bei der Herstellung von Keten |
摘要 |
A process is disclosed for the on-line analysis of a reactive gas mixture in a container, in particular a gas mixture containing ketene, diketene, acetic acid anhydride and/or acetic acid. The process is characterised in that part of the gas mixture is temporarily expanded in a sampling pipe and subjected to a mass spectrometric analysis through a probe integrated into the container and having an opening with a free cross-section smaller than or equal to 1 mm<2>. |
申请公布号 |
DE19733837(A1) |
申请公布日期 |
1999.02.25 |
申请号 |
DE1997133837 |
申请日期 |
1997.08.06 |
申请人 |
HOECHST AG, 65929 FRANKFURT, DE |
发明人 |
SCHAEFER, THOMAS, DR., 64646 HEPPENHEIM, DE |
分类号 |
G01N27/62;G01N1/00;G01N1/22;G01N1/24;G01N33/00;(IPC1-7):G01N1/24 |
主分类号 |
G01N27/62 |
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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