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    • 63. 发明申请
    • METHOD FOR THE PRODUCTION OF POLYAMIDES
    • 用于生产聚酰胺
    • WO01048053A1
    • 2001-07-05
    • PCT/EP2000/012740
    • 2000-12-14
    • C08G69/08C08G69/04C08G69/28C08G69/00
    • C08G69/28C08G69/04
    • The invention relates to a method for the production of polyamides from amino nitriles and water, (1) by reacting aminonitriles with water at a temperature of 180 - 350 DEG C and a pressure of 30 - 120 bar adjusted in such a way that in addition to a liquid phase, a gaseous phase is also present in the first reaction step; (2) relaxation of the reaction mixture obtained in the first reaction step via an evaporator zone or adiabatically with removal of water and ammonia in a second reaction step and (3) post-condensation in the second reaction step at a pressure 0.1 mbar to 5 bar at a temperature of 230 - 320 DEG C.
    • 从氨基腈和水生产聚酰胺的是由(1)反应的氨基腈与水在180〜350℃的范围的温度下进行,并调节到在30至120巴范围内的压力,即除了一个液体 相,气体相存在,在第一反应步骤中,(2)在第一反应阶段获得的松弛,通过蒸发器区或绝热在除去水和氨到第二反应阶段,和(3)后缩合在第二反应阶段,在一个压力,将反应混合物 范围从0.1毫巴至5巴及在范围230〜320℃下的温度下