TREATING HYDROXYLAMINE SALTS CONTAINING EXCESS ACID
    63.
    发明申请
    TREATING HYDROXYLAMINE SALTS CONTAINING EXCESS ACID 审中-公开
    处理含有酸的羟基胺盐

    公开(公告)号:WO1994013582A1

    公开(公告)日:1994-06-23

    申请号:PCT/US1993011321

    申请日:1993-11-22

    申请人: OLIN CORPORATION

    IPC分类号: C01B21/20

    CPC分类号: C01B21/1481

    摘要: A process for treating solutions of a hydroxylammonium salt containing excess acid characterized by the steps of: a) mixing the hydroxylammonium salt containing excess acid with a hydroxylammonium solution containing free hydroxylamine to produce a solution of the hydroxylammonium salt substantially free of excess acid, b) contacting a portion of the solution of the hydroxylammonium salt substantially free of excess acid with a weak base ion exchange resin to produce the hydroxylammonium solution containing free hydroxylamine, and c) recycling the hydroxylammonium solution containing free hydroxylamine to step a). The process minimizes the decomposition of the hydroxylammonium salt solution and produces high purity hydroxylammonium nitrate solutions without directly contacting excess nitric acid with ion exchange resins. In addition to hydroxylammonium salts, the process can be used to treat any nitrate salt of an amine weak base which contains excess nitric acid.

    摘要翻译: 一种用于处理含有过量酸的羟基铵盐的溶液的方法,其特征在于以下步骤:a)将含有过量酸的羟基铵盐与含有游离羟胺的羟基铵溶液混合以产生基本上不含过量酸的羟基铵盐溶液; b) 使基本上不含过量酸的羟基铵盐的一部分溶液与弱碱离子交换树脂接触,以产生含有游离羟胺的羟基铵溶液,和c)将含游离羟胺的羟基铵溶液循环到步骤a)。 该方法使羟基铵盐溶液的分解最小化,并产生高纯度的硝酸铵溶液,而不会使过量的硝酸与离子交换树脂直接接触。 除了羟基铵盐之外,该方法可用于处理含有过量硝酸的胺弱碱的任何硝酸盐。