Iron-enhanced selectivity of heavy metal-bromine catalysis in the
oxidation of polyalkylaromatics
    31.
    发明授权
    Iron-enhanced selectivity of heavy metal-bromine catalysis in the oxidation of polyalkylaromatics 失效
    重金属 - 溴催化氧化聚烷基芳烃的铁增强选择性

    公开(公告)号:US4754062A

    公开(公告)日:1988-06-28

    申请号:US041784

    申请日:1987-04-23

    IPC分类号: C07C51/265

    CPC分类号: C07C51/265

    摘要: A process for the manufacture of polycarboxylic acids is disclosed. In this novel process, iron is used to improve the selectivity of cobalt-manganese-bromine or zirconium-cobalt-manganese-bromine oxidation system. Polycarboxylic acids such as pseudocumene are converted to trimellitic acid which is used to manufacture plasticizers and polyamide-imide polymers used as molding compounds for replacement of metals.

    摘要翻译: 公开了一种制备多元羧酸的方法。 在这种新方法中,铁用于提高钴 - 锰 - 溴或锆 - 钴 - 锰 - 溴氧化体系的选择性。 将多元羧酸(例如假枯烯烯)转化为偏苯三酸,其用于制造用作替代金属的模塑料的增塑剂和聚酰胺 - 酰亚胺聚合物。