发明授权
- 专利标题： Process for the preparation of trioxane
- 专利标题（中）： 三恶烷的制备方法
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申请号： US176105申请日： 1993-12-30
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公开(公告)号： US5508448A公开(公告)日： 1996-04-16
- 发明人: Gerhard Emig , Benno Kruger , Frank Kern , Michael Hoffmockel , Karl-Friedrich Muck , Gunter Sextro
- 申请人： Gerhard Emig , Benno Kruger , Frank Kern , Michael Hoffmockel , Karl-Friedrich Muck , Gunter Sextro
- 申请人地址： DEX
- 专利权人： Hoechst Aktiengesellschaft
- 当前专利权人： Hoechst Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX4244582.5 19921231; DEX4337706.8 19931105
- 主分类号： B01J27/198
- IPC分类号： B01J27/198 ; C07B61/00 ; C07D323/06
摘要：
A process for the catalytic preparation of trioxane from formaldehyde in the gas phase employs a catalyst comprising vanadyl hydrogenphosphate hemihydrate which may be unactivated or activated by steam.No byproducts were obtained in the process and the space-time yield is high. Deposits in the reactor do not occur.
公开/授权文献
- US6132000A Lock releasing structure of seat back 公开/授权日：2000-10-17
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