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    METHOD OF CALCIUM NITRATE PRODUCTION
    4.
    发明公开
    METHOD OF CALCIUM NITRATE PRODUCTION 有权
    VERFAHREN ZUR HERSTELLUNG VON CALCIUMNITRAT

    公开(公告)号：EP1807351A1

    公开(公告)日：2007-07-18

    申请号：EP05775413.7

    申请日：2005-08-22

    申请人： Nawrocki, Adam ,  Olszewski, Radoslaw

    发明人： Nawrocki, Adam ,  Olszewski, Radoslaw

    IPC分类号： C01F11/38 ,  C01F11/44 ,  C05C5/04

    CPC分类号： C01F11/44 ,  C01F11/38 ,  C01P2004/20 ,  C01P2006/80 ,  C05D3/00 ,  C05D9/02

    摘要： The method of calcium nitrate production by treating limestone with the nitric acids, evaporation of the calcium nitrate solution, followed by cooling and crystallization of the product at the solid stage, characterized by the fact that the reaction process between nitric acids and the limestone is carried out in a reactor with a packing, and the concentration of the calcium nitrate solution is carried out until crystalline seeds come into being in situ. Next, the obtained crystallization suspension is cooled while microelements of the group: Cu, Fe, Mn, Zn are simultaneously added, which is followed by the formation, and the crystallization of the end product in a solid form of flakes.

    摘要翻译： 通过用硝酸处理石灰石，硝酸钙溶液蒸发，然后在固体阶段冷却和结晶产物，生产硝酸钙的方法，其特征在于硝酸和石灰石之间的反应过程被携带 在具有填料的反应器中进行，并且进行硝酸钙溶液的浓度，直到晶种进入原位。 接下来，将所得到的结晶悬浮液冷却，同时加入Cu，Fe，Mn，Zn的微量元素，随后进行形成，并且以固体形式的片状结晶终产物。

    CONTINUOUS PRODUCTION OF FERTILIZING SALTS WITH DERIVATIVES OF STRONTIUM AND GYPSUM
    5.
    发明公开
    CONTINUOUS PRODUCTION OF FERTILIZING SALTS WITH DERIVATIVES OF STRONTIUM AND GYPSUM 失效
    KONTINUIERLICHES VERFAHREN ZUR HERSTELLUNG VONDÜNGERSALZEN，STRONTIUMDERIVATEN UND GIPS。

    公开(公告)号：EP0495937A1

    公开(公告)日：1992-07-29

    申请号：EP91911661.6

    申请日：1991-07-03

    申请人： PROINSUR PROMOCIONES INDUSTRIALES DEL SUR, S.A.

    发明人： PIEDRAFITA PALACIOS, Adolfo

    IPC分类号： C01F11/18 ,  C01F11/38 ,  C05C1/00

    CPC分类号： C05D9/00 ,  C01C1/185 ,  C01C1/26 ,  C01F11/187 ,  C01F11/38 ,  C01F11/46 ,  C01P2006/80 ,  C05C1/00 ,  C05D3/02

    摘要： Method for obtaining fertilizing salts and derivatives of strontium, by wet process, starting from mineral material such as strontium sulphate which is reacted with ammonium carbonate in excess. This reaction is carried out continuously and with counter-current flows of reagents. This excess of ammonium carbonate used is recovered in order to recycle it in the process and to isolate the ammonium sulphate which may be treated continuously with a lime carbonate or oxide, recovering the gases evolved by the reaction and obtaining as final product lime sulphate (gypsum). In a second phase, strontium carbonate obtained is continuously reacted with nitric acid in order to obtain strontium nitrate, part of which is carbonated with gases (CO₂ and NH₃) producing a precipitate of strontium carbonate and a solution of ammonium nitrate.

    摘要翻译： 通过湿法从锶硫酸盐等矿物材料中获得肥料盐和锶衍生物的方法，其与碳酸铵过量反应。 该反应是连续进行的并且具有逆流的试剂流。 回收这种过量的碳酸铵以便在该方法中循环使用，并分离可以用石灰碳酸盐或氧化物连续处理的硫酸铵，回收通过反应放出的气体并获得最终产物石灰硫酸盐（石膏 ）。 在第二阶段中，所得到的碳酸锶与硝酸连续反应以获得硝酸锶，其中一部分用气体（CO 2和NH 3）碳酸化，产生碳酸锶和硝酸铵溶液的沉淀物。