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    Active magnesium oxide
    1.
    发明授权
    Active magnesium oxide 失效
    活性氧化镁

    公开(公告)号：US3800032A

    公开(公告)日：1974-03-26

    申请号：US19715571

    申请日：1971-11-09

    申请人： SALZDETFURTH AG

    发明人： EBERLE H ,  MEYER W ,  BARTLING H

    IPC分类号： C01F5/02 ,  C01F5/14 ,  C01F5/08 ,  C01F5/16

    CPC分类号： C01F5/02 ,  C01F5/14 ,  C01P2006/12

    摘要： A process for the preparation of active magnesium oxide having a large specific area by dispersing magnesium hydroxide or oxide with water forming a turbid liquid having a turbidity density of about 5 to 20 percent and vigorously agitating the liquid for about 5 to 60 minutes, the temperature of the turbid liquid being kept at about 80* to 110* C throughout the process, by introducing steam, washing the filter cake, drying and calcining the separated magnesium compound to obtain large surface area magnesium oxide.

    摘要翻译： 一种制备具有大比表面积的活性氧化镁的方法，其通过将氢氧化镁或氧化物与水混合，形成浊度密度为约5至20％的混浊液体并剧烈搅拌该液体约5至60分钟， 的混浊液体在整个过程中保持在约80℃至110℃，通过引入蒸汽，洗涤滤饼，干燥和煅烧分离的镁化合物以获得大的表面积氧化镁。

    Free flowing mixtures containing sodium chloride as predominant component
    2.
    发明授权
    Free flowing mixtures containing sodium chloride as predominant component 失效
    含有氯化钠的自由流动混合物作为预处理组分

    公开(公告)号：US3556718A

    公开(公告)日：1971-01-19

    申请号：US3556718D

    申请日：1967-08-31

    申请人： SALZDETFURTH AG

    发明人： BACHMANN RUDOLF ,  GENTSCH LEONORE

    IPC分类号： B01J2/30 ,  C01D3/16 ,  C01D3/26

    CPC分类号： B01J2/30 ,  C01D3/16

    摘要： FREE FLOWING MIXTURES CONTAINING SUBDIVIDED SODIUM CHLORIDE AS A PREDOMINANT COMPONENT HAVING 0.0001 TO 1 WEIGHT PERCENT OF A MORPHOLINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA

    4-R-MORPHOLINE

    WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALKENYL OF 6 TO 22 CARBON ATOMS AND THE WATER SOLUBLE SALTS THEREOF WITH STRONG ACIDS IN INTIMATE ADMIXTURE THEREWITH AS A CAKING INHIBITOR.

    Process for recovering low-sulfate bischofite
    5.
    发明授权
    Process for recovering low-sulfate bischofite 失效
    回收低硫酸盐双歧杆菌的方法

    公开(公告)号：US3642455A

    公开(公告)日：1972-02-15

    申请号：US3642455D

    申请日：1968-04-12

    申请人： SALZDETFURTH AG

    发明人： HAHN BURKHARD J ,  REISE ROLF M E ,  RASCHKA WALTER R

    IPC分类号： C01F5/30 ,  C01F5/40

    CPC分类号： C01F5/30 ,  C01F5/40

    摘要： Aqueous brines containing both magnesium chloride and magnesium sulfate are treated to recover a low-sulfate bischofite (MgCl2.6H2O). The brines are subjected to evaporation, as required, to produce a brine which is substantially supersaturated with respect to magnesium sulfate. The evaporation is conducted at high temperatures to avoid crystallization of magnesium chloride. The supersaturated magnesium sulfate brine is then held at high temperature under conditions which maintain the magnesium chloride in solution for a sufficiently long duration to permit the crystallization of magnesium sulfate as MgSO4.5/4 H2O. Clarified brine recovered from the resulting sulfate-crystal slurry is subjected to evaporation under vacuum and at low temperature, preferably below about 90* C., at sufficient rate to produce a low-sulfate bischofite crystal crop.

    摘要翻译： 处理含有氯化镁和硫酸镁的含水盐水以回收低硫酸盐双磷铁矿（MgCl 2·6H 2 O）。 根据需要对盐水进行蒸发以产生相对于硫酸镁基本上过饱和的盐水。 蒸发在高温下进行，以避免氯化镁结晶。 然后将过饱和硫酸镁盐水保持在高温下，将氯化镁在溶液中保持足够长的时间，以允许硫酸镁以MgSO 4 / 5H 2 O结晶。 从所得硫酸盐晶体浆料中回收的澄清盐水在真空下和低温下，优选低于约90℃下以足够的速率进行蒸发，以产生低硫酸盐双曲砾石晶体作物。