- 专利标题： Process for the preparation of pure triethylenediamine (TEDA)
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申请号： US10033915申请日： 2002-01-03
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公开(公告)号： US06552194B2公开(公告)日： 2003-04-22
- 发明人: Ortmund Lang , Bernd Rumpf , Matthias Frauenkron , Dirk Funhoff , Thomas Manderbach , Bernd Stein
- 申请人： Ortmund Lang , Bernd Rumpf , Matthias Frauenkron , Dirk Funhoff , Thomas Manderbach , Bernd Stein
- 优先权： DE10100943 20010110
- 主分类号： C07D48708
- IPC分类号： C07D48708
摘要：
The invention relates to the preparation of pure triethylenediamine (TEDA) by evaporating TEDA from the mixture comprising a solvent or diluent, where the solvent or diluent has a boiling point at atmospheric pressure in the range from 175 to 250° C., passing the vapor-form TEDA into a liquid solvent, and subsequently crystallizing the TEDA out of the resultant solution.
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