Method for the separation of monomers from a composition containing a monomer
    3.
    发明申请
    Method for the separation of monomers from a composition containing a monomer 审中-公开
    从含有单体的组合物中分离单体的方法

    公开(公告)号:US20070004903A1

    公开(公告)日:2007-01-04

    申请号:US10551050

    申请日:2004-03-26

    IPC分类号: C08F6/00

    CPC分类号: C07C51/50 C07C57/04

    摘要: The present invention concerns a process for separation of a monomer including at least one double bond, hereafter referred to as “monomer,” in particular (meth)acrylic acid, from a composition Z including this monomer and at least one impurity different to the monomer, including the steps of bringing into contact of the composition Z with an additive by forming a separation phase. The additive has a melting point of at most about 150° C. and a vapour pressure at a temperature of 20° C. of at most about 1 mbar. The monomer is then separated from the separation phase. A device for producing a monomer, the use of additives in the separation of a monomer from a monomer-comprising composition, the monomer obtainable by the process according to the invention, chemical products comprising the monomer as well as the use of the monomer in or for production of chemical products.

    摘要翻译: 本发明涉及从包含该单体的组合物Z和至少一种与单体不同的杂质分离包含至少一个双键的单体(以下称为“单体”,特别是(甲基)丙烯酸)的方法) 包括通过形成分离相使组合物Z与添加剂接触的步骤。 该添加剂的熔点至多约150℃,蒸气压在20℃至多约1毫巴。 然后将单体与分离相分离。 用于制备单体的装置,在从单体组合物分离单体中使用添加剂的方法,通过本发明的方法获得的单体,包含单体的化学产物以及单体在或 用于生产化学产品。