Continuous processes and apparatus for forming cyanoacetate and cyanoacrylate
    1.
    发明申请
    Continuous processes and apparatus for forming cyanoacetate and cyanoacrylate 审中-公开
    用于形成氰基乙酸酯和氰基丙烯酸酯的连续方法和设备

    公开(公告)号:US20050182271A1

    公开(公告)日:2005-08-18

    申请号:US11088454

    申请日:2005-03-24

    摘要: Continuous processes for forming cyanoacrylate from polycyanoacrylate include stripping a solvent from a reaction mass; cracking a polymer in the reaction mass to form a cracked cyanoacrylate monomer and residue substances; and distilling the cracked cyanoacrylate monomer to produce a cyanoacrylate monomer product. These steps can be performed in short-path, wiped-film evaporators. Polycyanoacrylate used in the processes can be formed using cyanoacetate produced by processes for continuously producing cyanoacetate by forming a higher homologue cyanoacetate from a lower homologue cyanoacetate. The cyanoacetate can be formed in short-path, wiped-film evaporators.

    摘要翻译: 从聚氰基丙烯酸酯形成氰基丙烯酸酯的连续方法包括从反应物质中汽提一种溶剂; 在反应物料中裂解聚合物以形成裂化的氰基丙烯酸酯单体和残余物质; 并蒸馏裂化的氰基丙烯酸酯单体以产生氰基丙烯酸酯单体产物。 这些步骤可以在短路,擦膜蒸发器中进行。 在该方法中使用的聚氰基丙烯酸酯可以使用由通过从较低同系物氰基乙酸酯形成较高同系物的氰基乙酸酯而连续生产氰基乙酸酯的方法制备的氰基乙酸酯。 氰基乙酸酯可以在短路,擦膜蒸发器中形成。