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    Method for Producing Sodium Dithionite
    64.
    发明申请
    Method for Producing Sodium Dithionite 失效
    生产连二亚硫酸钠的方法

    公开(公告)号：US20080187484A1

    公开(公告)日：2008-08-07

    申请号：US11666973

    申请日：2005-11-03

    申请人： Armin Diefenbacher ,  Hartwig Voss ,  Reinhard Schneider

    发明人： Armin Diefenbacher ,  Hartwig Voss ,  Reinhard Schneider

    IPC分类号： C01B17/66

    CPC分类号： C01B17/66

    摘要： The invention relates to a process for the preparation of sodium dithionite, comprising the steps (a) provision of a synthesis batch comprising sodium formate, sulfur dioxide and an alkaline sodium compound in aqueous methanolic solution with formation of a sodium dithionite mother liquor, (b) isolation of sodium dithionite from the sodium dithionite mother liquor, a residual mother liquor being obtained, (c) separation of methanol from the residual mother liquor, (d) separation of the residual mother liquor into a thiosulfate-rich first part-stream and a thiosulfate-poor, formate-containing second part-stream by means of nanofiltration, (e) concentration of sodium formate in the second part-stream and (f) recycling of the concentrated second part-stream to process step (a).

    摘要翻译： 本发明涉及一种制备连二亚硫酸钠的方法，包括以下步骤：（a）在形成连二亚硫酸钠母液的水溶液中提供包含甲酸钠，二氧化硫和碱性钠化合物的合成批料，（b ）从连二亚硫酸钠母液中分离连二亚硫酸钠，得到残余母液，（c）从残余母液中分离甲醇，（d）将残余母液分离成富含硫代硫酸氢盐的第一部分流， （e）在第二部分流中浓缩甲酸钠，和（f）将浓缩的第二部分物流再循环到工艺步骤（a）中，通过纳滤法生产含有硫代硫酸盐的富含甲酸的第二部分物流。

    Method for separating a homogeneous catalyst
    67.
    发明申请
    Method for separating a homogeneous catalyst 审中-公开
    分离均相催化剂的方法

    公开(公告)号：US20070034576A1

    公开(公告)日：2007-02-15

    申请号：US10561613

    申请日：2004-06-11

    申请人： Wolfram Stuer ,  Jens Scheidel ,  Hartwig Voss ,  Peter Bassler ,  Michael Roper

    发明人： Wolfram Stuer ,  Jens Scheidel ,  Hartwig Voss ,  Peter Bassler ,  Michael Roper

    IPC分类号： B01D61/00

    CPC分类号： C07F15/0073 ,  C07F15/008

    摘要： A process for separating a mixture comprising a) a monoolefinically unsaturated compound which is obtainable by adding two terminal olefins which bear the functional groups required to prepare the monoolefinically unsaturated compound containing at least two functional groups, or a saturated compound obtained by hydrogenating such a compound, b) a compound which is obtainable by adding more than two of the terminal olefins mentioned in a) or a compound obtained by hydrogenating such a compound, and c) a compound which contains a transition metal, is homogeneous with respect to the mixture and is suitable as a catalyst for preparing a monoolefinically unsaturated compound by adding two terminal olefins which bear the functional groups required to prepare the monoolefinically unsaturated compound containing at least two functional groups, by means of a semipermeable membrane to obtain a permeate and a retentate in such a way that the weight ratio of component b) to component c) in the mixture fed to the semipermeable membrane is smaller than in the retentate.

    摘要翻译： 一种分离混合物的方法，该混合物包含a）单烯属不饱和化合物，其可以通过加入含有制备含有至少两个官能团的单烯属不饱和化合物所需的官能团的二末端烯烃，或通过氢化这种化合物获得的饱和化合物 b）通过添加a）中所述的两种以上的末端烯烃或通过氢化这种化合物得到的化合物得到的化合物，和c）含有过渡金属的化合物相对于混合物是均匀的， 通过加入具有制备含有至少两个官能团的单烯属不饱和化合物所需的官能团的二末端烯烃，通过半透膜以制备单烯属不饱和化合物，以获得渗透物和渗余物 组分b）与组分c）的重量比在mi中的方式 进料到半透膜的切口小于滞留物中的孔。

    Production of a zeolite-containing solid
    68.
    发明申请
    Production of a zeolite-containing solid 审中-公开
    制备含沸石的固体

    公开(公告)号：US20060183629A1

    公开(公告)日：2006-08-17

    申请号：US11044195

    申请日：2005-01-28

    申请人： Ulrich Muller ,  Hartwig Voss ,  Erich Schubert ,  Friedrich Hill ,  Hermann Petersen

    发明人： Ulrich Muller ,  Hartwig Voss ,  Erich Schubert ,  Friedrich Hill ,  Hermann Petersen

    IPC分类号： B01J29/04

    CPC分类号： C01B21/1409 ,  B01J29/04 ,  B01J29/06 ,  B01J29/89 ,  C01B39/026 ,  C07C239/08 ,  C07C249/04 ,  C07D301/12

    摘要： In a process for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture comprising at least one auxiliary, for example a template compound, and said solid, the mixture is ultrafiltrated in a step (II) to divide the mixture into a retentate and a permeate, the solids content in the retentate being higher than that in the mixture and the solids content in the permeate being lower than that in the mixture. This procedure allows auxiliaries, in particular template compounds, present in the permeate to be recycled into a crystallizing step (I) upstream of step (II).

    摘要翻译： 在将包含至少一种沸石的至少部分结晶的固体在包含至少一种助剂例如模板化合物和所述固体的混合物中浓缩的方法中，在步骤（II）中将混合物超滤以将混合物分成 渗余物和渗透物，渗余物中的固体含量高于混合物中的固体含量，并且渗透物中的固体含量低于混合物中的固体含量。 该方法允许存在于渗透物中的助剂，特别是模板化合物再循环到步骤（II）上游的结晶步骤（I）中。