Process for the preparation of polycarbonate
    11.
    发明授权
    Process for the preparation of polycarbonate 失效
    制备聚碳酸酯的方法

    公开(公告)号:US08173762B2

    公开(公告)日:2012-05-08

    申请号:US12829845

    申请日:2010-07-02

    IPC分类号: C08G64/00 C08G63/02

    CPC分类号: C08G64/307

    摘要: A combined process for the preparation of polycarbonate from bisphenols and diaryl carbonates, the monophenol liberated being reacted again for the preparation of the diaryl carbonate and the alkali metal halide forming in the preparation of the diaryl carbonate being converted by electrochemical oxidation, optionally over a gas diffusion electrode, into chlorine and alkali hydroxide solution, the chlorine being recycled into the preparation of the phosgene and the alkali hydroxide solution being recycled into the preparation of the diaryl carbonate.

    摘要翻译: 用于从双酚和碳酸二芳基酯制备聚碳酸酯的组合方法中,释放的单酚再次反应,用于制备碳酸二芳基酯和在制备碳酸二芳基酯时通过电化学氧化转化而形成的碱金属卤化物,任选地在气体 扩散电极,进入氯和碱性氢氧化物溶液中,氯被循环到光气的制备中,碱性氢氧化物溶液被循环到碳酸二芳基酯的制备中。

    OXYGEN-CONSUMING ELECTRODE
    13.
    发明申请
    OXYGEN-CONSUMING ELECTRODE 审中-公开
    氧气消耗电极

    公开(公告)号:US20120021302A1

    公开(公告)日:2012-01-26

    申请号:US13177656

    申请日:2011-07-07

    摘要: The present invention relates to an oxygen-consuming electrode comprising at least one support structure having a surface and a gas diffusion coating having a catalytically active component disposed on the surface. The coating contains at least one fluorine-containing polymer, a silver compound, selected from the group consisting of silver particles, reducible silver compounds, and mixtures thereof, and a hydrophilic caustic alkali-resistant filler which is electrically nonconductive or has a poor electrical conductivity and has an average particle diameter from 5 to 200 μm.

    摘要翻译: 本发明涉及一种耗氧电极,其包括至少一个具有表面的支撑结构和具有设置在表面上的催化活性组分的气体扩散涂层。 涂层含有至少一种选自银粒子,可还原银化合物及其混合物的含氟聚合物,银化合物,以及不导电或导电性差的亲水性碱性耐碱填料 平均粒径为5〜200μm。

    PROCESSES FOR THE PREPARATION OF CHLORINE FROM HYDROGEN CHLORIDE AND OXYGEN
    16.
    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:US20070286793A1

    公开(公告)日:2007-12-13

    申请号:US11752405

    申请日:2007-05-23

    IPC分类号: C01B7/04

    摘要: A process is disclosed comprising: (a) reacting hydrogen chloride and oxygen to form a gas mixture comprising chlorine, water, unreacted hydrogen chloride, and unreacted oxygen; (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; (d) removing at least a portion of the water from the gas mixture; and (e) subjecting the gas mixture to a gas permeation such that at least a portion of the unreacted oxygen in the gas mixture is separated to form a chlorine-rich gas stream and an oxygen-containing partial stream.

    摘要翻译: 公开了一种方法,包括:(a)使氯化氢和氧气反应以形成包含氯,水,未反应的氯化氢和未反应的氧的气体混合物; (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; (d)从气体混合物中去除至少一部分水; 和(e)使气体混合物经受气体渗透,使得气体混合物中的至少一部分未反应的氧气被分离以形成富含氯气的气流和含氧部分流。

    PROCESSES FOR OBTAINING CHLORINE FROM MIXTURES OF CHLORINE, WATER, HYDROGEN CHLORIDE AND OXYGEN, AND INCORPORATION OF SUCH PROCESSES INTO ISOCYANATE PRODUCTION PROCESSES
    17.
    发明申请
    PROCESSES FOR OBTAINING CHLORINE FROM MIXTURES OF CHLORINE, WATER, HYDROGEN CHLORIDE AND OXYGEN, AND INCORPORATION OF SUCH PROCESSES INTO ISOCYANATE PRODUCTION PROCESSES 审中-公开
    从氯仿,氯化氢,氯化氢混合物中获得氯化物的方法,以及将这些工艺纳入异氰酸酯生产工艺

    公开(公告)号:US20070274900A1

    公开(公告)日:2007-11-29

    申请号:US11752558

    申请日:2007-05-23

    IPC分类号: C01B7/04

    CPC分类号: C01B7/04 C01B7/015 C01B7/0743

    摘要: Processes comprising: (a) providing an initial gas mixture comprising chlorine, water, hydrogen chloride and oxygen; (b) cooling the initial gas mixture to form condensed hydrochloric acid and an intermediate chlorine-containing gas mixture; (c) contacting the intermediate gas mixture with a water-containing phase under a set of conditions selected from a pressure, a temperature and combinations thereof to form a chlorine hydrate-containing phase and a remaining gas mixture; (d) separating the chlorine hydrate-containing phase from the remaining gas mixture; (e) subjecting the chlorine hydrate-containing phase to a set of conditions selected from heat, pressure relief and combinations thereof to release chlorine and form a residual chlorine hydrate/water-containing phase; and (f) separating the released chlorine from the residual chlorine hydrate/water-containing phase.

    摘要翻译: 方法包括:(a)提供包含氯,水,氯化氢和氧的初始气体混合物; (b)冷却初始气体混合物以形成冷凝盐酸和中间含氯气体混合物; (c)在选自压力,温度及其组合的一组条件下使中间体气体混合物与含水相接触以形成含氯化氢的相和剩余气体混合物; (d)从剩余的气体混合物中分离含氯化水的相; (e)使含水合氯化氢相经历一系列选自加热,减压及其组合的条件以释放氯并形成残余的含氯化氢/水相; 和(f)从残留的含氯水合物/含水相分离释放的氯。

    Process for producing isocyanates
    18.
    发明申请
    Process for producing isocyanates 审中-公开
    异氰酸酯的制备方法

    公开(公告)号:US20070012577A1

    公开(公告)日:2007-01-18

    申请号:US11484253

    申请日:2006-07-11

    IPC分类号: C25B3/06

    摘要: An isocyanate is produced by: (a) reacting chlorine with carbon monoxide to form phosgene, (b) reacting the phosgene with an organic amine to form an isocyanate and hydrogen chloride, (c) separating the isocyanate and hydrogen chloride, (d) optionally, purifying the hydrogen chloride, (e) preparing an aqueous solution of the hydrogen chloride, (f) optionally, purifying the aqueous solution of hydrogen chloride, (g) subjecting the aqueous hydrogen chloride solution to electrochemical oxidation to form chlorine, and (h) returning at least a portion of the chlorine produced in (g) to (a).

    摘要翻译: 通过以下方法制备异氰酸酯:(a)使氯与一氧化碳反应以形成光气,(b)使光气与有机胺反应形成异氰酸酯和氯化氢,(c)将异氰酸酯和氯化氢分离,(d) ,纯化氯化氢,(e)制备氯化氢水溶液,(f)任选地,纯化氯化氢水溶液,(g)使氯化氢水溶液进行电化学氧化形成氯,和(h )将(g)至(a)中产生的氯的至少一部分返回。

    Electrolyser with coiled inlet hose
    20.
    发明授权
    Electrolyser with coiled inlet hose 有权
    电磁线圈带入口软管

    公开(公告)号:US09045837B2

    公开(公告)日:2015-06-02

    申请号:US13994042

    申请日:2011-11-15

    IPC分类号: C25B9/08 C25B15/08 C25B1/46

    摘要: Electrolyzer comprising at least one single electrolyzer element which comprises at least one anode compartment with an anode, one cathode compartment with a cathode and one ion exchange membrane arranged between the anode and the cathode compartments, with the anode and/or cathode being a gas diffusion electrode. A gap is provided between the gas diffusion electrode and the ion exchange membrane, with an electrolyte inlet arranged at the upper end of the gap and an electrolyte outlet at the lower end of the gap and a gas inlet and a gas outlet. The electrolyte outlet extending into a discharge header, and the electrolyte inlet connected to an electrolyte feed tank and having an overflow, the overflow connected to the discharge header, with a coiled hose connecting the electrolyte feed tank with the electrolyte inlet and with a coiled hose connecting the overflow with the discharge header.

    摘要翻译: 电解器包括至少一个单个电解器元件,其包括具有阳极的至少一个阳极室,具有阴极的一个阴极室和布置在阳极和阴极室之间的一个离子交换膜,阳极和/或阴极是气体扩散 电极。 在气体扩散电极和离子交换膜之间设置有间隙,电解液入口布置在间隙的上端,并且间隙的下端具有电解液出口,气体入口和气体出口。 电解液出口延伸到排放集管中,电解质入口连接到电解质进料罐并具有溢流,溢流口连接到排出集管,连接软管将电解质进料罐与电解液入口连接,并且连接软管 将溢流与排放管连接。