发明授权
- 专利标题： Process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate
- 专利标题（中）： 从含有酒石酸钾的原料中连续回收游离酒石酸的方法
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申请号： US10789704申请日： 2004-02-26
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公开(公告)号： US07311837B2公开(公告)日： 2007-12-25
- 发明人: Dieter Stein , Rudolf Bonsch , Klaus Erb
- 申请人： Dieter Stein , Rudolf Bonsch , Klaus Erb
- 申请人地址： DE Frankfurt
- 专利权人： Lurgi AG
- 当前专利权人： Lurgi AG
- 当前专利权人地址： DE Frankfurt
- 代理机构： Kenyon & Kenyon LLP
- 优先权： DE10308045 20030226
- 主分类号： B01D11/00
- IPC分类号： B01D11/00
摘要：
In a process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate, the same are mixed with water and the potassium hydrogentartrate is dissolved. The process is improved in that the suspension is decanted, the clarified liquid is refiltered, the filtrate is cooled to crystallization temperature under a vacuum, the potassium hydrogentartrate crystals formed are dissolved, the solution is subjected to a cation exchange, and the tartaric acid solution obtained is evaporated.
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