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    • 2. 发明授权
    • Process for working up polycarbonates
    • 加工聚碳酸酯的工艺
    • US4338429A
    • 1982-07-06
    • US166015
    • 1980-07-07
    • Volker SeriniJohn GoossensLudwig BottenbruchDieter Freitag
    • Volker SeriniJohn GoossensLudwig BottenbruchDieter Freitag
    • C08G63/00C08G64/24C08G64/40C08J3/10
    • C08G64/24C08G64/406
    • The present invention relates to a process for working up alkaline two-phase mixtures which have been obtained in the synthesis of polycarbonates by the two-phase boundary process, characterized in that for the separation of the alkaline two-phase mixture into an organic phase and an aqueous phase, the mixture is supplied with shearing energy and/or added are one or more cationic emulsifying agents and/or dispersing agents and/or in that, for the separation of the acidified two-phase mixture into an organic phase and an aqueous phase, the mixture is supplied with shearing energy and/or added are one or more cationic emulsifying agents and/or dispersing agents and/or in that the organic phase which was separated off after the acidification is washed with water to which one or more water-soluble, organic anionic compounds have been added.
    • 本发明涉及一种在两相边界过程合成聚碳酸酯中获得的碱性二相混合物的处理方法,其特征在于将碱性两相混合物分离成有机相, 水相中,混合物被供应剪切能量和/或添加一种或多种阳离子乳化剂和/或分散剂和/或为了将酸化的两相混合物分离成有机相和水相 提供剪切能量和/或添加的是一种或多种阳离子乳化剂和/或分散剂,和/或在酸化后分离的有机相用水洗涤,向其中加入一种或多种水 已经添加了可溶性有机阴离子化合物。