나노 크기 하이드로탈사이트 제조방법
    2.
    发明公开
    나노 크기 하이드로탈사이트 제조방법 有权
    用于生产纳米尺寸的水合氧化物保留阴离子交换能力和阴离子去除能力的方法

    公开(公告)号:KR1020050010610A

    公开(公告)日:2005-01-28

    申请号:KR1020030049850

    申请日:2003-07-21

    CPC classification number: C01F7/005 B82Y40/00 C01F5/24 C01P2004/64

    Abstract: PURPOSE: A process is provided to produce a nano-sized hydrotalcite keeping an anion exchange ability and an anion removing ability, which is a layered double hydroxide(LDH) comprising Mg and Al and can be used as a filler in fiber or a polymer to remove anions. CONSTITUTION: The process contains the steps of: reacting an acid reactant and a base reactant under the condition of pH 8.5-12; aging the resultant in a constant temperature stirrer of 25-200deg.C; recovering the solid phase hydrotalcite from the aged resultant. The acid reactant comprises a magnesium source, selected from the group consisting of MgCl2, magnesium ethoxide, and Mg(OH)2, and an aluminum source, selected from the group consisting of Al(acac), aluminum tri-secbutoxide, and Al(OH)3, wherein the cation molar ratio(£Mg2¬+|/£Al3¬+|) is 1-4. And the base reactant contains NaOH and one or at least two selected from the group consisting of Na2CO3, Ca(OH)3, C8H6O4, NaHCO3, CO2, H3BO3, Na3PO4-12H2O, and Na2SiO3-9H2O.

    Abstract translation: 目的:提供一种制备保持阴离子交换能力和阴离子去除能力的纳米级水滑石的方法,其是包含Mg和Al的层状双氢氧化物(LDH),可用作纤维或聚合物中的填料 去除阴离子。 构成:该方法包括以下步骤:在pH 8.5-12的条件下使酸反应物和碱反应物反应; 将所得物在25-200℃的恒温搅拌器中老化; 从老化的结果中回收固相水滑石。 酸反应物包括选自MgCl 2,乙醇镁和Mg(OH)2的镁源,以及选自Al(acac),三 - 仲丁氧化铝和Al( OH)3,其中阳离子摩尔比(£Mg2 + + / Al3 + +)为1-4。 碱反应物含有NaOH和选自Na 2 CO 3,Ca(OH)3,C 8 H 6 O 4,NaHCO 3,CO 2,H 3 BO 3,Na 3 PO 4·12H 2 O和Na 2 SiO 3·9H 2 O中的一种或至少两种。

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