Efficient process for previous metal recovery from cell membrane electrode assemblies
    9.
    发明授权
    Efficient process for previous metal recovery from cell membrane electrode assemblies 有权
    从细胞膜电极组件获得先前金属回收的有效方法

    公开(公告)号:US07709135B2

    公开(公告)日:2010-05-04

    申请号:US12134394

    申请日:2008-06-06

    摘要: A method is provided for recovering a catalytic element from a fuel cell membrane electrode assembly. The method includes grinding the membrane electrode assembly into a powder, extracting the catalytic element by forming a slurry comprising the powder and an acid leachate adapted to dissolve the catalytic element into a soluble salt, and separating the slurry into a depleted powder and a supernatant containing the catalytic element salt. The depleted powder is washed to remove any catalytic element salt retained within pores in the depleted powder and the catalytic element is purified from the salt.

    摘要翻译: 提供了用于从燃料电池膜电极组件回收催化元件的方法。 该方法包括将膜电极组件研磨成粉末,通过形成包含粉末的浆料和适于将催化元素溶解成可溶性盐的酸性渗滤液提取催化元素,并将浆料分离成贫的粉末和含有 催化元素盐。 将贫化的粉末洗涤以除去保留在贫化粉末中的孔内的任何催化元素盐,并从盐中纯化催化元素。