Magnesium aluminate anion exchangers
    21.
    发明授权
    Magnesium aluminate anion exchangers 失效
    铝酸镁阴离子交换剂

    公开(公告)号:US4326961A

    公开(公告)日:1982-04-27

    申请号:US183907

    申请日:1980-09-04

    Abstract: Preparations and uses are shown for novel crystalline aluminates which conform generally to the empirical formulaMgA.sub.a.sup.V Z.sub.b.sup.v .multidot.nAl(OH).sub.3 .multidot.mH.sub.2 OwhereA and Z represent negative-valence ions or radicals selected from the group comprising hydroxyl, halide, inorganic acid, and organic acid,n is a value of from about 1 to about 2,v is a negative valence of 1, 2, or 3,a and b each have values of from zero to 2, with (va)+(vb) equal to 2, and with m being a value of zero or more.

    Abstract translation: 显示了新型结晶铝酸盐的制备和用途,其通常符合经验式MgAaVZbvxnAl(OH)3·xH2O,其中A和Z表示负价离子或选自羟基,卤化物,无机酸和有机酸的基团,n为 值为约1至约2,v为1,2或3的负数,a和b各自具有0至2的值,其中(va)+(vb)等于2,并且与m 值为零或以上。

    Recovery of Mg.sup.++  from brines
    22.
    发明授权
    Recovery of Mg.sup.++ from brines 失效
    回收Mg {hu {30 {30 {{{{{

    公开(公告)号:US4116857A

    公开(公告)日:1978-09-26

    申请号:US812542

    申请日:1977-07-05

    CPC classification number: B01J47/006 B01J41/08 C01F7/002

    Abstract: Magnesium values are selectively recovered from salt brines, even salt brines which contain competing ions such as Li.sup.+, Ca.sup.++, and Sr.sup.++, by contacting the brine with an anion exchange resin which has dispersed therein a microcrystalline structure of the formula MgX.sub.2.2Al(OH).sub.3, where X is a halide.

    Abstract translation: 通过使盐水与分散有式MgX2.2Al(OH)的微晶结构的阴离子交换树脂接触,从盐盐水,甚至含有竞争离子的盐盐,即Li +,Ca ++和Sr ++的盐水中选择性地回收镁值, 3,其中X是卤化物。

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