Continuous recovery of (meth)acrylic acid
    1.
    发明授权
    Continuous recovery of (meth)acrylic acid 失效
    连续回收(甲基)丙烯酸

    公开(公告)号:US06413379B1

    公开(公告)日:2002-07-02

    申请号:US09362911

    申请日:1999-07-29

    IPC分类号: B01D334

    摘要: A process for the continuous recovery of (meth)acrylic acid from a liquid starting mixture containing (meth)acrylic acid, a high-boiling organic solvent and low boilers, medium boilers and high boilers is proposed, the mixture being separated into a first part-stream (a), which, in addition to (meth)acrylic acid, contains the low boilers and a part each of the medium boilers and high boilers, and a second part-stream (b), which contains the predominant part of the (meth)acrylic acid and is completely or virtually completely free of low boilers, and the (meth)acrylic acid being recovered from the part-stream (b).

    摘要翻译: 提出了从含有(甲基)丙烯酸,高沸点有机溶剂和低沸点,中等锅炉和高锅炉的液体起始混合物连续回收(甲基)丙烯酸的方法,将混合物分离成第一部分 流(a),除了(甲基)丙烯酸之外,其还包含低锅炉和中等锅炉和高锅炉的一部分,以及第二部分物流(b),其包含主要部分 (甲基)丙烯酸,完全或几乎完全不含低沸点物质,(甲基)丙烯酸从部分物流(b)回收。