Selective electrochemical oxidation of organic compounds
    3.
    发明授权
    Selective electrochemical oxidation of organic compounds 失效
    有机化合物的选择性电化学氧化

    公开(公告)号:US4543173A

    公开(公告)日:1985-09-24

    申请号:US625287

    申请日:1984-06-27

    CPC classification number: C25B3/02

    Abstract: The present invention relates to a method and electrochemical cell useful for the selective electrochemical oxidation of aryl-compounds including aromatic and polynuclear aromatic hydrocarbons such as benzene, naphthalene and anthracene or their derivatives such as phenols and naphthols. The anodic electrode of the cell includes a first foraminous or porous layer of a hydrophobic material; a second foraminous or porous layer which includes an oxidation catalyst; and an electrical current collector in contact with the second layer. As a result of the special chemical properties and porosity of the first and second layers of the anode, and because of careful control of the pressure differential between the electrolyte solution and the aryl-compound, an active interface is formed by the electrolyte solution and aryl-compound between the first and second layers or in the second layer of the anode thereby providing for very selective controlled oxidation of the aryl-compound with excellent current efficiencies.

    Abstract translation: 本发明涉及一种用于选择性电化学芳族化合物的方法和电化学电池,所述芳基化合物包括芳族和多环芳烃如苯,萘和蒽或其衍生物如酚类和萘酚。 电池的阳极电极包括疏水材料的第一多孔或多孔层; 包括氧化催化剂的第二多孔或多孔层; 以及与第二层接触的集电体。 由于阳极的第一和第二层的特殊化学性质和孔隙率,并且由于仔细控制电解质溶液和芳基化合物之间的压力差,由电解质溶液和芳基形成活性界面 - 在第一层和第二层之间或在阳极的第二层中化合,由此提供具有优异电流效率的芳基化合物的非常选择性的受控氧化。

    Novel caustic-chlorine electrochemical cell monitoring apparatus and
method
    4.
    发明授权
    Novel caustic-chlorine electrochemical cell monitoring apparatus and method 失效
    新型苛性氯电化学电池监测装置及方法

    公开(公告)号:US4895635A

    公开(公告)日:1990-01-23

    申请号:US142610

    申请日:1988-01-11

    CPC classification number: C25B15/02

    Abstract: A novel electrochemical cell monitoring apparatus for a caustic-chlorine electrolyzer, which includes a voltmeter, a standard calomel reference electrode, a flexible conduit for cell bath, preferably of multilayer construction, and a conduit support body placed between electrode walls to prevent crimping of the conduit when the walls of the electrolyzer are pressed together or dislocation during operation, and the method of monitoring a selected electrochemical cell which includes connecting an electrode of the selected cell and the standard reference electrode to the voltmeter, providing cell bath from the electrode of the selected cell through the conduit to the liquid junction of the standard reference electrode, operating the electrolyzer and reading the voltage on the voltmeter to compare with a predetermined standard voltage.

    Abstract translation: 一种用于苛性氯电解器的新型电化学电池监测装置,其包括电压表,标准甘汞参比电极,用于电池槽的柔性导管,优选多层结构,以及放置在电极壁之间的导管支撑体,以防止卷曲 电解槽的壁在操作期间被压在一起或脱位的导管,以及监测所选择的电化学电池的方法,所述电化学电池包括将所选择的电池的电极和标准参考电极连接到电压表,从电极的电极提供电池 选择的电池通过导管连接到标准参考电极的液体接点,操作电解器并读取电压表上的电压以与预定的标准电压进行比较。

    Novel multifunctional compounds and electrolytic oxidative coupling
process
    5.
    发明授权
    Novel multifunctional compounds and electrolytic oxidative coupling process 失效
    新型多功能化合物和电解氧化偶联方法

    公开(公告)号:US4871430A

    公开(公告)日:1989-10-03

    申请号:US16595

    申请日:1987-02-19

    CPC classification number: C25B3/10 C07C255/05

    Abstract: A process for electrochemically coupling anions of organic radicals to form multifunctional compounds having the general formula ##STR1## in which R.sub.1 and R.sub.2 are independently selected from --CN, CO.sub.2 Et, --R .sub.4 CH.sub.2 Et, --CO.sub.2 R.sub.4, and --COCH.sub.3 ; R.sub.3 is Br, H, or Et, and R.sub.4 is C.sub.1-12 alkyl; and the novel compounds per se.

    Abstract translation: 电化学偶联有机基团的阴离子以形成具有通式“IMAGE”的多官能化合物的方法,其中R 1和R 2独立地选自-CN,CO 2 Et,-R 4 CH 2 Et,-CO 2 R 4和-COCH 3; R3是Br,H或Et,R4是C1-12烷基; 和新化合物本身。

    Flow-through electrolytic cell
    6.
    发明授权
    Flow-through electrolytic cell 失效
    流通电解槽

    公开(公告)号:US4705564A

    公开(公告)日:1987-11-10

    申请号:US926751

    申请日:1986-11-04

    CPC classification number: C25B11/14 C25B11/035 C25B15/08 C25B3/00 C25B9/16

    Abstract: A flow-through electrochemical cell for sequentially oxidizing and reducing an aryl compound. The cell includes a cell body forming a compartment to hold an aqueous electrolyte solution, a porous anodic electrode, and a porous cathodic electrode. The anodic electrode includes a first porous layer of a hydrophobic material, a second porous layer with an oxidation catalyst dispersed therein, and a current collector in electrical contact with the second layer. The cathodic electrode comprises a block of a porous, electrically-conductive material impregnated with lead particles. The cell is particularly useful for the preparation of aryl hydroquinones at very high current efficiencies, high current densities, and low voltages.

    Abstract translation: 用于顺序地氧化和还原芳基化合物的流通电化学电池。 电池包括形成容纳电解质水溶液的隔室的电池体,多孔阳极电极和多孔阴极电极。 阳极电极包括疏水材料的第一多孔层,分散有氧化催化剂的第二多孔层和与第二层电接触的集电器。 阴极电极包括浸渍有铅颗粒的多孔导电材料块。 该电池特别可用于以非常高的电流效率,高电流密度和低电压制备芳基氢醌。

    Uniformly crosslinked polyesters
    7.
    发明授权
    Uniformly crosslinked polyesters 失效
    均匀交联的聚酯

    公开(公告)号:US4661565A

    公开(公告)日:1987-04-28

    申请号:US840107

    申请日:1986-03-17

    CPC classification number: C08G63/916

    Abstract: This invention relates to a new uniformly crosslinked polymer having the formula: ##STR1## wherein R.sub.1 is an alkylene, a cycloalkylene, an alkenylene, an alkynlene or a p-arylene and n is a whole integer greater than 1 and less than 100,000.

    Abstract translation: 本发明涉及具有下式的新均匀交联的聚合物:其中R1是亚烷基,亚环烷基,亚烯基,炔烃或对亚芳基,n是大于1且小于100,000的整数。

    Process for preparing polyaniline
    8.
    发明授权
    Process for preparing polyaniline 失效
    制备聚苯胺的方法

    公开(公告)号:US5792830A

    公开(公告)日:1998-08-11

    申请号:US762481

    申请日:1996-12-09

    CPC classification number: C08G73/0266

    Abstract: Described is a process for preparing polyaniline polymer which includes contacting aniline monomers with (a) hydrogen peroxide, (b) at least one acid, including hydrogen chloride, hydrogen bromide, or a mixture thereof, and (c) a catalytic amount of at least one metal-containing compound or complex, under reaction conditions sufficient to form a polymerization reaction product containing a polyaniline polymer. It has been discovered that the processes described herein provide means to prepare polyaniline having a relatively high conductivity at a high degree of aniline monomer conversion using hydrogen peroxide as an oxidant.

    Abstract translation: 描述了制备聚苯胺聚合物的方法,其包括使苯胺单体与(a)过氧化氢,(b)至少一种酸(包括氯化氢,溴化氢或其混合物)接触,和(c)催化量至少 一种含金属的化合物或络合物,在足以形成含有聚苯胺聚合物的聚合反应产物的反应条件下。 已经发现,本文所述的方法提供了使用过氧化氢作为氧化剂在高度苯胺单体转化下制备具有较高导电性的聚苯胺的方法。

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