DENSE LAYERED DOUBLE HYDROXIDE, AND METHOD FOR PRODUCING SAME
    1.
    发明申请
    DENSE LAYERED DOUBLE HYDROXIDE, AND METHOD FOR PRODUCING SAME 有权
    DENSE LAYERED DOUBLE HYDROXIDE,及其生产方法

    公开(公告)号:US20150225252A1

    公开(公告)日:2015-08-13

    申请号:US14696731

    申请日:2015-04-27

    IPC分类号: C01F7/00 C01G1/02

    摘要: The present invention provides and produces a high-grade layered double hydroxide (LDH) dense body having a relative density of 88% or greater in a simple and stable manner. The present invention provides a LDH dense body including a layered double hydroxide as a main phase and having a relative density of 88% or greater, the LDH being represented by general formula: M2+1-xM3+x(OH)2An−x/n.mH2O wherein M2+ is a divalent cation, M3+ is a trivalent cation, An− is an n-valent anion, n is an integer of 1 or greater, and x is 0.1 to 0.4. This LDH dense body can be produced by compacting and firing a raw material powder of a LDH to obtain an oxide fired body, retaining this oxide fired body in or immediately above an aqueous solution comprising an n-valent anion to reproduce the LDH, and removing excessive water from the resulting water-rich LDH solidified body.

    摘要翻译: 本发明以简单且稳定的方式提供并生产相对密度为88%以上的高级层状双氢氧化物(LDH)致密体。 本发明提供一种包含层状双氢氧化物作为主相并具有88%以上的相对密度的LDH致密体,LDH由通式M2 + 1-xM3 + x(OH)2An-x / n.mH2O其中M2 +是二价阳离子,M3 +是三价阳离子,An-是n价阴离子,n是1以上的整数,x是0.1〜0.4。 该LDH致密体可以通过对LDH的原料粉末进行压实和烧制来制造,以获得氧化物烧制体,将该氧化物烧制体保持在包含n价阴离子的水溶液中或其上方再生LDH,并除去 过量的水从所得的富含水的LDH凝固体中。