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    Process and device for the distillative purification of metals, especially of zinc
    2.
    发明授权
    Process and device for the distillative purification of metals, especially of zinc 失效
    用于金属蒸馏净化的工艺和装置，特别是锌

    公开(公告)号：US3637367A

    公开(公告)日：1972-01-25

    申请号：US3637367D

    申请日：1968-07-19

    申请人： GRILLO WERKE AG

    发明人： LOWICKI NORBERT

    IPC分类号： C22B5/16 ,  C22B19/04 ,  C22B9/02 ,  B01D3/28 ,  C22B19/14

    CPC分类号： C22B5/16 ,  C22B19/04 ,  Y10S203/11

    摘要： Metal, especially zinc, is purified by distillation of the metal in the fused state in a packed column. The fused metal is introduced at the top of the packing so that a coherent stream of the metal flows through a considerable height of the packing. Heat is supplied to the packing to provide a temperature gradient across the packing so that the temperature of the vapor remote from the coherent stream is relatively high with respect to the temperature of the coherent stream.

    摘要翻译： 金属，特别是锌，通过在填充柱中以熔融状态蒸馏金属来纯化。 熔融金属被引入填料的顶部，使得金属的相干流动流过包装的相当高的高度。 将热量供应到填料以提供穿过填料的温度梯度，使得远离相干流的蒸气的温度相对于相干流的温度相对较高。

    Process for the directive removal of so3 from waste gas
    3.
    发明授权
    Process for the directive removal of so3 from waste gas 失效
    从废气中明确去除SO3的过程

    公开(公告)号：US3669617A

    公开(公告)日：1972-06-13

    申请号：US3669617D

    申请日：1969-12-17

    申请人： GRILLO WERKE AG

    发明人： LOWICKI NORBERT ,  TEGGERS HANS

    IPC分类号： B01D53/50 ,  B01D53/16 ,  B01D53/34

    CPC分类号： B01D53/508

    摘要： PROCESS OF TREATING WASTE GAS WHICH CONTAINS SO3 AND IS AT A RELATIVELY HIGH TEMPERTURE, ABOVE ITS DEW POINT, WHICH COMPRISES: (A) CONTACTING THE GAS AT SAID ELEVATED TEMPERATURE WITH AN ABSORBENT COMPRISING (1) AN AMPHOTERIC COMPONENT AND (2) A BASIC COMPONENT, WHEREIN THE AMPHOTERIC COMPONENT (1) IS A LEAST ONE MEMBER OF THE GROUP OXIDES, HYDRATED OXIDES AND HYDROXIDES OF ALUMINUM ZINC, IRON AND MANGANESE, AND BASIC COMPONENT (2) IS AT LEAST ONE MEMBER OF THE GROUP OXIDES AND HYDROXIDES OF ALKALI METAL AND ALKALINE EARTH METALS, FOR ABSORPTION OF SO3 FROM THE GAS AND THEREBY LOWERING THE DEW POINT OF THE GAS TO A LOWER DEW POINT; (B) UTILIZING AT LEAST PART OF THE GAS AS A HEATING MEDIUM IN A HEAT EXCHANGE WHEREBY THE GAS IS COOLED TO A RELATIVELY LOW TEMPERATURE BUT ABOVE SAID LOWER DEW POINT.