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    • 2. 发明申请
    • DISTILLATION OF IONIC LIQUIDS
    • 离子液体的蒸馏
    • WO2009027250A2
    • 2009-03-05
    • PCT/EP2008060743
    • 2008-08-15
    • BASF SEMASSONNE KLEMENSSIEMER MICHAELMORMANN WERNERLENG WEI
    • MASSONNE KLEMENSSIEMER MICHAELMORMANN WERNERLENG WEI
    • C07B63/00C07C51/44C07C53/122C07D233/58
    • C07C51/44C07B63/00C07D233/54C07C53/122C07C53/10
    • The invention relates to a method for the distillation of mixtures which contain salts having a melting point of less than 200°C at 1 bar (ionic liquids). Said method is characterized that the cation of the ionic liquid contains a heterocyclic ring system with at least one nitrogen atom and all nitrogen atoms of the heterocyclic ring system have an organic group as the substituent. Furthermore, the anion of the ionic liquid is a compound with at least one carboxylate group (in short: carboxylate) or at least one phosphate group (in short: phosphate). During distillation, the distance of the surface via which the distillation heat is supplied (evaporation surface) to the surface on which condensation takes place (condenser surface) is less than 50 cm in at least one point, the evaporator and condenser surface itself having a length of at least more than 50 cm.
    • 对于含有具有熔点小于200℃的盐的混合物在1巴(离子液体)的蒸馏,其特征在于所述的方法, - 所述离子液体的阳离子包含,和杂环环体系具有至少一个氮原子,所有的杂环体系中的氮原子是有机 作为取代基有 - 它是离子液体的所述阴离子为具有至少一个羧酸酯(羧酸酯的简称)或至少一个磷酸基团(短磷酸酯),和化合物 - 在在其上蒸馏热供给该表面的距离的蒸馏( 蒸发器表面)到冷凝发生的表面(冷凝器表面),至少一个点小于50厘米,蒸发器和冷凝器表面本身至少具有大于50厘米的长度尺寸。