Process for the production of perfluoroalkylsulphonyl fluorides and
electrodes for performance of the process
    2.
    发明授权
    Process for the production of perfluoroalkylsulphonyl fluorides and electrodes for performance of the process 失效
    用于生产全氟烷基磺酰基氟化物和电极的方法,用于实施该方法

    公开(公告)号:US5364507A

    公开(公告)日:1994-11-15

    申请号:US100241

    申请日:1993-08-02

    CPC分类号: C07C303/22 C25B11/04 C25B3/08

    摘要: The present invention provides a process for the production of perfluoroalkylsulphonyl fluorides of the formula C.sub.n F.sub.2n+1 SO.sub.2 F with n=6-10 by electrochemical fluorination of alkylsulphonyl halides of the general formula C.sub.n H.sub.2n+1 SO.sub.2 X with n=6-10 and X=F, Cl, Br or I in hydrogen fluoride, which process is characterised in that electrodes are used which consist of nickel with a columnar structure or which are coated with nickel with a columnar structure as shown in FIG. 1.The invention also provides electrodes for the production of perfluoroalkylsulphonyl fluorides from the corresponding alkylsulphonyl halides by electrochemical fluorination in hydrogen fluoride, which electrodes are characterised in that they consist of nickel with a columnar structure or are coated with nickel with a columnar structure.

    摘要翻译: 本发明提供通过电化学氟化通式C n H 2n + 1 SO 2 X的烷基磺酰卤,n = 6-10和X = F,Cl,制备式C n F 2n + 1 SO 2 F的全氟烷基磺酰氟的n = 6-10的方法, Br或I在氟化氢中,其特征在于使用由具有柱状结构的镍组成的电极,或者如图1所示用柱状结构的镍涂覆的电极。 本发明还提供用于通过氟化氢中的电化学氟化从相应的烷基磺酰卤生产全氟烷基磺酰氟的电极,该电极的特征在于它们由具有柱状结构的镍组成或用柱状结构的镍涂覆。

    Method for producing silane
    3.
    发明授权
    Method for producing silane 失效
    硅烷的制造方法

    公开(公告)号:US06852301B2

    公开(公告)日:2005-02-08

    申请号:US10450207

    申请日:2001-11-21

    IPC分类号: C01B33/04 C01B33/18

    摘要: The invention relates to a method for producing silane (SiH4) by a) reacting metallurgical silicon with silicon tetrachloride (SiCl4) and hydrogen (H2), to form a crude gas stream containing trichlorosilane (SiHCl3) and silicon tetrachloride (SiCl4), b) removing impurities from the resulting crude gas stream by washing with condensed chlorosilanes, c) condensing and subsequently, separating the purified crude gas stream by distillation, d) returning the partial stream consisting essentially of SiCl4 to the reaction of metallurgical silicon with SiCl4 and H2, e) disproportionating the partial stream containing SiHCl3, to form SiCl4 and SiH4 and f) returning the SiH4 formed by disproportionation to the reaction of metallurgical silicon with SiCl4 and H2, the crude gas stream containing trichlorosilane and silicon tetrachloride being liberated from solids as far as possible by gas filtration before being washed with the condensed chlorosilanes. The washing process with the condensed chlorosilanes is carried out at a pressure of 25 to 40 bar and at a temperature of at least 150° C. in a single-stage distillation column and is carried out in such a way that 0.1 to 3 wt. % of the crude gas stream containing trichlorosilane and silicon tetrachloride is recovered in the form of a condensed liquid phase consisting essentially of SiCl4, this liquid phase then being removed from the SiCl4 circuit and expanded to a pressure of 1 bar outside said SiCl4 circuit and cooled to a temperature of 10 to 40° C., whereby dissolved impurities separate out and are then removed by filtration.

    摘要翻译: 本发明涉及一种通过以下步骤制备硅烷(SiH 4)的方法:a)使冶金硅与四氯化硅(SiCl 4)和氢(H 2)反应,形成含有三氯硅烷(SiHCl 3)和四氯化硅(SiCl 4)的粗气流,b) 通过用冷凝的氯硅烷洗涤从所得粗气流中除去杂质,c)冷凝并随后通过蒸馏分离纯化的粗气流,d)将基本上由SiCl 4组成的部分流返回到冶金硅与SiCl 4和H 2的反应中, e)歧化含SiHCl3的部分流,以形成SiCl4和SiH4,以及f)将通过歧化形成的SiH 4返回至冶金硅与SiCl4和H2的反应,将含有三氯硅烷和四氯化硅的粗气流从固体释放至 在用冷凝的氯硅烷洗涤之前可能通过气体过滤。 冷凝氯硅烷的洗涤过程在单级蒸馏塔中在25至40巴的压力和至少150℃的温度下进行,并以0.1至3重量% 含有三氯硅烷和四氯化硅的粗气流的%以基本上由SiCl 4组成的冷凝液相的形式回收,然后将该液相从SiCl4回路除去并在SiCl 4回路外扩张至1巴的压力,并冷却 温度为10〜40℃,由此分离出溶解的杂质,然后通过过滤除去。

    PROCESSES FOR THE PREPARATION OF CHLORINE FROM HYDROGEN CHLORIDE AND OXYGEN
    6.
    发明申请
    PROCESSES FOR THE PREPARATION OF CHLORINE FROM HYDROGEN CHLORIDE AND OXYGEN 审中-公开
    从氯化氢和氧气中制备氯化物的方法

    公开(公告)号:US20070274898A1

    公开(公告)日:2007-11-29

    申请号:US11752410

    申请日:2007-05-23

    IPC分类号: C01B7/04

    摘要: A process is disclosed comprising: (a) reacting hydrogen chloride and an oxygen-containing gas to form a gas mixture comprising chlorine, water, unreacted hydrogen chloride, and unreacted oxygen, wherein the oxygen-containing gas reacted with the hydrogen chloride has an oxygen content of not more than 99 vol. %; (b) cooling the gas mixture to form an aqueous solution of hydrogen chloride; (c) separating at least a portion of the aqueous solution of hydrogen chloride from the gas mixture; and (d) subjecting the gas mixture to a gas permeation to form a chlorine-rich gas stream and an oxygen-containing partial stream.

    摘要翻译: 公开了一种方法,其包括:(a)使氯化氢和含氧气体反应以形成包含氯,水,未反应的氯化氢和未反应的氧的气体混合物,其中与氯化氢反应的含氧气体具有氧 含量不超过99体积 %; (b)冷却气体混合物以形成氯化氢水溶液; (c)从气体混合物中分离至少一部分氯化氢水溶液; 和(d)使气体混合物进行气体渗透以形成富氯气流和含氧部分流。

    PROCESSES FOR THE PREPARATION OF ISOCYANATES
    7.
    发明申请
    PROCESSES FOR THE PREPARATION OF ISOCYANATES 审中-公开
    制备异氰酸酯的方法

    公开(公告)号:US20070269365A1

    公开(公告)日:2007-11-22

    申请号:US11748634

    申请日:2007-05-15

    IPC分类号: C01B7/00 C07C263/10

    摘要: Processes are described which comprise: (a) reacting chlorine with carbon monoxide to form phosgene; (b) reacting the phosgene with at least one organic amine to form at least one isocyanate and hydrogen chloride; (c) separating the hydrogen chloride; (d) oxidizing the hydrogen chloride with oxygen in a gas phase to form additional chlorine; and (e) recycling at least a portion of the additional chlorine to the reaction of the chlorine and the carbon monoxide; wherein the oxidation of the hydrogen chloride is initiated via a high energy source which may be selected from electron-exciting radiation, ionizing radiation, a gas discharge, a plasma, and combinations thereof.

    摘要翻译: 描述的方法包括:(a)使氯与一氧化碳反应以形成光气; (b)使光气与至少一种有机胺反应以形成至少一种异氰酸酯和氯化氢; (c)分离氯化氢; (d)在气相中用氧氧化氯化氢以形成额外的氯; 和(e)将至少一部分附加的氯回收到氯和一氧化碳的反应中; 其中氯化氢的氧化通过高能源引发,高能源可以选自电子激发辐射,电离辐射,气体放电,等离子体及其组合。

    Electrochemical cell
    8.
    发明申请
    Electrochemical cell 审中-公开
    电化学电池

    公开(公告)号:US20050029116A1

    公开(公告)日:2005-02-10

    申请号:US10897430

    申请日:2004-07-23

    IPC分类号: C25B9/08 C25C1/00

    CPC分类号: C25B9/08

    摘要: The present invention describes an electrochemical cell, comprising at least an anode half-cell with an anode, a cathode half-cell with a cathode, and an ion exchange membrane arranged between the anode half-cell and the cathode half-cell, the anode and/or the cathode is a gas diffusion electrode. And a gap is provided between the gas diffusion electrode and the ion exchange membrane, and the half-cell with the gas diffusion electrode has an electrolyte feed and an electrolyte discharge as well as a gas inlet and a gas outlet. The electrochemical cell preferably has an electrolyte feed that is hermetically connected to the gap.

    摘要翻译: 本发明描述了一种电化学电池,其至少包括具有阳极的阳极半电池,具有阴极的阴极半电池和布置在阳极半电池和阴极半电池之间的离子交换膜,阳极 和/或阴极是气体扩散电极。 并且在气体扩散电极和离子交换膜之间设置有间隙,并且具有气体扩散电极的半电池具有电解质进料和电解液排出以及气体入口和气体出口。 电化学电池优选地具有气密地连接到间隙的电解质进料。

    Electrochemical cell having a frame seal for alternative sealing against marginal leakages of the electrolyte
    10.
    发明授权
    Electrochemical cell having a frame seal for alternative sealing against marginal leakages of the electrolyte 有权
    电化学电池具有框架密封件,用于替代密封以防止电解液的边缘泄漏

    公开(公告)号:US09476131B2

    公开(公告)日:2016-10-25

    申请号:US14009457

    申请日:2012-04-19

    摘要: The invention relates to an electrochemical cell comprising an anode and a cathode compartment separated by a membrane, housing corresponding electrodes. The anode and the cathode compartments having external walls with frame-type flanged areas in the contact area of both compartments. The flanged areas having mounting bores marking an inner area and an outer area of the electrochemical cell a, gas-diffusion electrode resting on a support system, a porous material resting on the gas-diffusion electrode, and devices for the inlet and outlet of gas and electrolyte. At least one circumferential gasket frame is in the contact area of both compartments, between the frame-type flanged areas of the external walls of both compartments, said gasket resting on the membrane, with the porous material and the gas-diffusion electrode resting on the frame-type cathodic flanged area and the circumferential gasket frame overlapping in this area with the porous material and the gas-diffusion electrode.

    摘要翻译: 本发明涉及一种电化学电池,包括由膜隔开的阳极和阴极室,容纳对应的电极。 阳极和阴极隔室在两个隔室的接触区域中具有带框架式法兰区域的外壁。 凸缘区域具有标记电化学电池单元a的内部区域和外部区域的安装孔,搁置在支撑系统上的气体扩散电极,搁置在气体扩散电极上的多孔材料以及用于气体入口和出口的装置 和电解质。 至少一个周向垫圈框架位于两个隔室的接触区域中,两个隔室的外壁的框架型凸缘区域之间,所述垫片搁置在膜上,多孔材料和气体扩散电极位于 框式阴极凸缘区域和圆周垫圈框架在该区域与多孔材料和气体扩散电极重叠。