发明授权
- 专利标题： Process for the preparation of formic acid
- 专利标题（中）： 制备甲酸的方法
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申请号： US13171598申请日： 2011-06-29
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公开(公告)号： US08901350B2公开(公告)日： 2014-12-02
- 发明人: Daniel Schneider , Klaus-Dieter Mohl , Martin Schäfer , Karin Pickenäcker , Stefan Rittinger , Thomas Schaub , Joaquim Henrique Teles , Rocco Paciello , Gerd Kaibel
- 申请人： Daniel Schneider , Klaus-Dieter Mohl , Martin Schäfer , Karin Pickenäcker , Stefan Rittinger , Thomas Schaub , Joaquim Henrique Teles , Rocco Paciello , Gerd Kaibel
- 申请人地址： DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE
- 代理机构： Drinker Biddle & Reath LLP
- 主分类号： C07C51/44
- IPC分类号： C07C51/44 ; C07C51/09
摘要：
Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid and a tertiary amine (I) in a molar ratio of from 0.5 to 5 is produced by combining tertiary amine (I) and a formic acid source, from 10 to 100% by weight of the secondary components present therein are separated off and formic acid is removed by distillation in a distillation apparatus at a bottom temperature of from 100 to 300° C. and a pressure of from 30 to 3000 hPa abs from the liquid stream obtained, the bottom discharge from the distillation apparatus being separated into two liquid phases and the upper liquid phase being recycled to the formic acid source and the lower liquid phase being recycled for separating off the secondary components and/or to the distillation apparatus.
公开/授权文献
- US20110319657A1 Process for the Preparation of Formic Acid 公开/授权日：2011-12-29
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