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    METHOD AND SYSTEM FOR CONCENTRATING WASTE SULPHURIC ACIDS FROM NITRATION PROCESSES
    3.
    发明申请
    METHOD AND SYSTEM FOR CONCENTRATING WASTE SULPHURIC ACIDS FROM NITRATION PROCESSES 有权
    从硝化过程中浓缩废硫酸的方法和系统

    公开(公告)号：US20100233069A1

    公开(公告)日：2010-09-16

    申请号：US12305902

    申请日：2007-06-20

    申请人： Ulrich Walter ,  Gottfried Dichtl

    发明人： Ulrich Walter ,  Gottfried Dichtl

    IPC分类号： C01B17/82 ,  B01D3/40

    CPC分类号： C01B17/94 ,  B01D3/148 ,  B01D3/40

    摘要： Disclosed is a method for recovering diluted waste sulfuric acid containing impurities from nitration processes, a highly concentrated nitric acid required in the nitration process being produced in association with the nitration process by means of extractive rectification with concentrated sulfuric acid which is re-concentrated in order to be reutilized. According to the inventive method, the waste sulfuric acid from the nitration process is fed to the top of a first, indirectly heated stripping column, optionally together with another waste sulfuric acid in the form of a DNT washing acid, and is divided into an overhead product containing nitric acid and nitro-organic compounds as well as a prepurified sulfuric acid in the bottom product. The prepurified sulfuric acid withdrawn from the bottom of the first stripping column is fed to the top of a second, serially connected additional indirectly heated stripping column, into the bottom zone of which another waste sulfuric acid is fed in the form of a diluted sulfuric acid recovered from the nitric acid concentration system such that the prepurified sulfuric acid from the first stripping column is further purified in the second stripping column and is preconcentrated along with the diluted sulfuric acid recovered from the extractive rectification of nitric acid.

    摘要翻译： 公开了一种从硝化过程中回收稀释的含有杂质的废硫酸的方法，硝化过程中所需的高浓度硝酸是通过与浓硫酸进行萃取精馏相结合的硝化过程制备的，该浓硫酸按顺序重新浓缩 被重新利用。 根据本发明的方法，将来自硝化过程的废硫酸进料到第一间接加热的汽提塔的顶部，任选地与另一种DNT洗涤酸形式的废硫酸一起分配成塔顶 含有硝酸和硝基有机化合物的产品以及底部产物中的预硫化硫酸。 将从第一汽提塔底部排出的预纯化硫酸进料到第二个连续连续的另外间接加热的汽提塔的顶部，进入其中另一个废硫酸以稀硫酸的形式进料的底部区域 从硝酸浓缩系统回收，使得来自第一汽提塔的预纯化硫酸在第二汽提塔中进一步纯化，并与从硝酸萃取精馏中回收的稀硫酸一起预浓缩。

    Derivatives of cyclic guanosine-3',5'-monophosphorothioate
    7.
    发明授权
    Derivatives of cyclic guanosine-3',5'-monophosphorothioate 失效
    环鸟苷-3'，5'-单磷酸硫酸酯的衍生物

    公开(公告)号：US5625056A

    公开(公告)日：1997-04-29

    申请号：US511664

    申请日：1995-08-07

    申请人： Hans-Gottfried Genieser ,  Ulrich Walter ,  Elke Butt

    发明人： Hans-Gottfried Genieser ,  Ulrich Walter ,  Elke Butt

    IPC分类号： C07H19/20 ,  C07H19/213

    CPC分类号： C07H19/20

    摘要： New derivatives of S.sub.P - and R.sub.P -configures cyclic guanosine-3',5'-phosphorothioates and their physiologically and pharmaceutically acceptable salts according to the general formula ##STR1## are cell membrane permeable inhibitors (R.sub.P -isomers) and stimulators (S.sub.P -isomers) of cyclic GMP-dependent protein kinase which are resistant against phosphodiesterase degradation and suitable as ligands for affinity chromatography of cyclic nucleotide-dependent binding proteins.

    摘要翻译： SP-和RP的新衍生物配置环鸟嘌呤-3'，5'-硫代磷酸酯及其根据通式的生理和药学上可接受的盐是细胞膜可渗透抑制剂（RP-异构体）和刺激剂（SP- 异构体）具有抗磷酸二酯酶降解的环GMP依赖性蛋白激酶，并且适合作为环核苷酸依赖性结合蛋白的亲和层析的配体。

    Nozzle for spraying liquids
    10.
    发明授权
    Nozzle for spraying liquids 失效
    用于喷涂液体的喷嘴

    公开(公告)号：US4773597A

    公开(公告)日：1988-09-27

    申请号：US129948

    申请日：1987-12-03

    申请人： Wolfgang Dittrich ,  Ingomar Fischer ,  Rainer Lingner ,  Olaf Pagel ,  Heinrich Petzold ,  Uwe Rohland ,  Ulrich Walter

    发明人： Wolfgang Dittrich ,  Ingomar Fischer ,  Rainer Lingner ,  Olaf Pagel ,  Heinrich Petzold ,  Uwe Rohland ,  Ulrich Walter

    IPC分类号： B05B7/04 ,  B05B7/10

    CPC分类号： B05B7/0466

    摘要： A nozzle for spraying liquids is provided, especially high viscosity liquid media used in the food and chemical industries. The nozzle finds particular use in fluidized bed spray granulators. A fine spray of high viscosity liquid media is attained. A nozzle head is arranged inside a nozzle housing. The nozzle head has a cylindrical portion terminating in a truncated, cone-shaped portion. A plurality of first flow ducts are arranged like the threads on a screw along the surface of the cylindrical portion for guiding a pressure medium such as air. A plurality of second ducts are arranged between the cylindrical portion and truncated, cone-shaped portion of the nozzle head and supply high viscosity liquid medium to the pressure medium exiting the downstream ends of the plurality of first ducts. The mixing high viscosity liquid and pressure media are supplied to a nozzle outlet via the truncated, cone-shaped portion of the nozzle head, which is mated by the inner surface of a nozzle cap, both of which are hardened and polished to a mirror-finish.

    摘要翻译： 提供用于喷射液体的喷嘴，特别是用于食品和化学工业中的高粘度液体介质。 喷嘴在流化床喷雾造粒机中特别有用。 获得高粘度液体介质的细喷雾。 喷嘴头布置在喷嘴壳体内。 喷嘴头具有终止于截头圆锥形部分的圆柱形部分。 多个第一流动管道沿着圆柱形部分的表面如螺纹布置在螺钉上，用于引导诸如空气的压力介质。 多个第二管道布置在喷嘴头的圆柱形部分和截锥形部分之间，并将高粘度液体介质供应到离开多个第一管道下游端的压力介质。 混合的高粘度液体和压力介质通过喷嘴头的截头圆锥形部分供应到喷嘴出口，喷嘴头的锥形部分由喷嘴盖的内表面配合，两者均被硬化和抛光到镜面 - 完。