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    • 19. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON POLYAMIDEN
    • VERFAHREN ZUR HERSTELLUNG VON POLYAMIDIDEN
    • EP1611184A1
    • 2006-01-04
    • EP04721865.6
    • 2004-03-19
    • BASF Aktiengesellschaft
    • DEININGER, JürgenDEMETER, JürgenKORY, GadSÖTJE, OliverWINTERLING, HelmutZEHNER, PeterHEEGER, MichaelGANN, MartinPOLT, AxelTREULING, UlrichWEINLE, Werner
    • C08G69/00C08G69/04C08G69/16
    • C08G69/04C08G69/28
    • The invention relates to a method for producing polyamides, their oligomers or mixtures thereof, optionally containing other reaction products, by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitrile, dinitrile and diamine and optionally additional polyamide-forming monomers and/or oligomers with water in a reactor (1) with a vertical longitudinal axis. According to said method, the reaction product is exfiltrated from the sump in the reactor (1) and accumulated ammonia and optionally other accumulated low-molecular compounds and water are drawn off via the head (2). The invention is characterised in that the reactor (1) comprises at least two chambers (4) arranged in a longitudinal direction one above the other, that the chambers (4) are separated from one another by liquid-tight floors (5), that each chamber (4) is connected to the one (4) immediately below by a respective liquid overflow (6) and a liquid product stream is drawn off via the liquid overflow (6) of the lowest chamber (4), that the gas chamber (7) above the liquid level in each chamber (4) is connected to the respective chamber (4) lying immediately above it via one or several conduits (8), which open respectively into a gas diffuser (9) comprising orifices (11) for the discharge of gas below the liquid level. The reactor also comprises at least one respective deflector plate (12) positioned vertically around each gas diffuser (9), the upper end of said plate terminating below the liquid level and the lower end terminating above the liquid-tight floor (5) of the chamber (4), thus sub-dividing each chamber (4) into one or more compartments supplied with gas (13) and one or more compartments without gas (14).
    • 本发明涉及通过将氨基腈或二腈和二胺或含有氨基腈,二腈和二胺的混合物以及任选另外的形成聚酰胺的单体和/或低聚物与含有其它反应产物的聚酰胺及其低聚物或其混合物 在具有垂直纵轴的反应器(1)中的水。 根据所述方法,反应产物从反应器(1)中的槽中渗出并且积聚氨和任选地其他积聚的低分子化合物和水经由头部(2)排出。 本发明的特征在于,反应器(1)包括至少两个沿上下方向纵向排列的室(4),室(4)通过液密地板(5)彼此分隔开, 每个腔室(4)通过相应的液体溢流(6)与正下方的一个(4)连接,并且液体产品物流通过最低腔室(4)的液体溢流(6)排出,使得气体腔室 (4)中液面以上的通道(7)通过一个或多个导管(8)连接到位于其正上方的相应室(4),所述导管分别通向包括孔口(11)的气体扩散器(9) 用于排放低于液位的气体。 该反应器还包括至少一个分别垂直放置在每个气体扩散器(9)周围的相应偏转板(12),所述板的上端终止于液位下方,并且其下端终止于液体密封层 从而将每个腔室(4)细分成供应有气体(13)的一个或多个隔室和不含气体(14)的一个或多个隔室。