Preparation of bismuth dithiocarbamates
    26.
    发明授权
    Preparation of bismuth dithiocarbamates 失效
    二硫代氨基甲酸铋的制备

    公开(公告)号:US5631214A

    公开(公告)日:1997-05-20

    申请号:US509277

    申请日:1995-07-31

    摘要: A novel method is disclosed for preparation of bismuth dithiocarbamates by an exchange reaction between a bismuth carboxylate and a metal dithiocarbamate. The metal dithiocarbamate can be added to the reaction or prepared in situ by reacting a secondary amine and carbon disulfide in the presence of metal oxide, metal hydroxide or a tertiary amine.The reaction products are useful as extreme pressure additives when incorporated in lubricants.

    摘要翻译: 公开了一种通过铋酸铋和二硫代氨基甲酸金属盐之间的交换反应制备二硫代氨基甲酸铋的新方法。 可以在金属氧化物,金属氢氧化物或叔胺的存在下,通过仲胺和二硫化碳反应将金属二硫代氨基甲酸盐加入到反应中或通过原位制备。 反应产物在加入润滑剂时可用作极压添加剂。