发明公开
EP1611078A2 VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE
审中-公开
VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZUACRYLSÄURE
- 专利标题： VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE
- 专利标题（英）： Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid
- 专利标题（中）： VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZUACRYLSÄURE
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申请号： EP04722163.5申请日： 2004-03-20
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公开(公告)号： EP1611078A2公开(公告)日： 2006-01-04
- 发明人: DIETERLE, Martin , PETZOLDT, Jochen , MÜLLER-ENGEL, Klaus Joachim , MARTAN, Hans
- 申请人： BASF Aktiengesellschaft
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： 67056 Ludwigshafen DE
- 优先权： DE10313209 20030325
- 国际公布： WO2004085368 20041007
- 主分类号： C07C57/05
- IPC分类号： C07C57/05
摘要：
Disclosed is a method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid, according to which a specifically composed initial reaction gas mixture containing propene and oxygen is oxidized on a first fixed catalyst bed having a constant or increasing volume-specific activity in the direction of flow in a first reaction stage. The resulting gas mixture of the first reaction stage, which contains acrolein, is then oxidized on a second fixed catalyst bed having an increasing volume-specific activity in the direction of flow in a second reaction stage. The molded catalyst bodies of both fixed catalyst beds have an annular shape and are respectively provided with a specific multimetal oxide composition.
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