Mixed-cation absorbent production with single pass ion exchange
    10.
    发明公开
    Mixed-cation absorbent production with single pass ion exchange 失效
    具有单程离子交换的混合阳离子吸收剂生产

    公开(公告)号:EP0729782A3

    公开(公告)日:1996-11-27

    申请号:EP96103203.4

    申请日:1996-03-01

    IPC分类号: B01J20/18 B01J39/14

    CPC分类号: B01J39/14 B01J20/186

    摘要: An improved process for production of mixed cation-exchanged adsorbents that involves a single pass ion exchange. The precursor (non-exchanged) zeolite is treated with a combined essentially stoichiometric and excess solution of desirable weakly held and strongly held cations so that the resultant zeolite has the required mixed cation composition, while consuming smaller amounts of weakly held cation. Ion exchange post-treatment includes an optional equilibration step to ensure a uniform adsorbent and an optional washing step.

    摘要翻译: 用于生产涉及单程离子交换的混合阳离子交换吸附剂的改进方法。 前体(未交换的)沸石用基本上化学计量和过量的理想弱结合和强保持阳离子的溶液处理,使得所得沸石具有所需的混合阳离子组合物,同时消耗较少量的弱保留阳离子。 离子交换后处理包括可选的平衡步骤以确保均匀的吸附剂和可选的洗涤步骤。