Electrochemical fluorination of 1,2-dichloroethane and 1,1,2-trichloroethane
    2.
    发明授权
    Electrochemical fluorination of 1,2-dichloroethane and 1,1,2-trichloroethane 失效
    1,2-二氯乙烷和1,1,2-三氯乙烷的电化学荧光

    公开(公告)号:US3620941A

    公开(公告)日:1971-11-16

    申请号:US3620941D

    申请日:1970-02-24

    CPC classification number: C25B3/08

    Abstract: In the electrochemical fluorination of 1,2-dichloroethane and 1,1,2-trichloroethane feedstocks, the selectivity to the products 1,2-dichlorotetrafluoroethane and 1,1,2-trichloro-1,2,2trifluoroethane is increased by charging a mixture of said feedstocks to the electrochemical fluorination cell instead of charging said feedstocks to the cell separately.

    Combination electrode
    6.
    发明授权
    Combination electrode 失效
    组合电极

    公开(公告)号:US3658685A

    公开(公告)日:1972-04-25

    申请号:US3658685D

    申请日:1970-02-09

    CPC classification number: C25B3/08

    Abstract: A combination electrode comprising a porous element, e.g., porous carbon, and a metal element in contact with an outer exposed surface of said porous element.

    Abstract translation: 包括多孔元件(例如多孔碳)和与所述多孔元件的外部暴露表面接触的金属元件的组合电极。

    METHOD FOR PRODUCING ADIPONITRILE

    公开(公告)号:CA1014102A

    公开(公告)日:1977-07-19

    申请号:CA169070

    申请日:1973-04-18

    Abstract: In a method for producing adiponitrile by electrolysis of an acrylonitrile composite stream passing through an undivided electrolytic cell having a cathode and an anode, flow of the acrylonitrile composite stream to the cell is periodically terminated, a wash stream is passed through the cell in contact with the cathode and anode, said wash stream being a basic aqueous solution having a concentration in the range of about 1-20 weight percent basic compound in the solution. The wash stream is passed through the cell in contact with the cathode and anode for a period of time in the range of about 1-60 minutes and thereafter the passage of the wash stream through the cell is terminated and the acrylonitrile composite stream is passed to the electrolytic cell for electrolysis.

    ELECTROCHEMICAL REDUCTIVE COUPLING
    10.
    发明专利

    公开(公告)号:CA978497A

    公开(公告)日:1975-11-25

    申请号:CA110695

    申请日:1971-04-19

    Abstract: 1358394 Electrochemical reductive coupling PHILLIPS PETROLEUM CO 28 May 1971 [1 June 1970 6 Aug 1970 23 Nov 1970] 17970/71 Heading C2C [Also in Divisions C7 and C5] Substituted olefins are electrochemically reductively coupled using as electrolyte an aqueous solution containing (a) alkali metal, alkaline earth metal, ammonium, methyl substituted ammonium or quaternary tetramethylammonium ions; (b) as quaternized cations quaternary ammonium, piperidinium, pyrrolidinium, morpholinium, sulphonium, phosphonium, arsonium, stibonium, diammonium or di-(C 1 -C 5 ) alkyleneammonium, the cations being quaternized by alkyl, cycloalkyl, alkenyl, aralkyl, monohydroxy alkyl or dihydroxyalkyl groups with normality of ions (a): ions (b) being at least 1À5 : 1; (c) anions which do not increase the solubility of the olefin in the electrolyte; and (d) 2-12 wt. per cent olefin reactant based on total electrolyte. Specified reactions are: Substituted Olefin acrylonitrile methacrylonitrile 2-pentenenitrile maleonitrile citracononitrile 4-vinylpyridine 2-vinylpyridine methyl acrylate ethyl crotonate ethyl 2-penteneoate N,N-diethyl acrylamide N,N-diamyl crotonamide N,N-dibutyl-2-penteneamide 1-cyanocyclohexene-1 1-cyanocyclopentene-1 1-ethoxycarbonylcyclohexene-1 1-butoxycarbonylcyclopentene-1 1-carbamoylcyclohexene-1 1-N,N-diethylcarbamoylcycloheptene-1 acrylonitrile and benzalacetone acrylonitrile and mesityl oxide allyl chloride crotyl fluoride Reductive Coupling Product adiponitrile 2,5-dimethyladiponitrile 3,4-diethyladiponitrile butane-1,2,3,4-tetracarbonitrile hexane-2,3,4,5-tetracarbonitrile 1,4-bis-(4-pyridyl)butane 1,4-bis-(2-pyridyl)butane dimethyl adipate diethyl 3,4-dimethyladipate diethyl 3,4-diethyl adipate N,N,N 1 ,N 1 -tetraethyladipamide N,N,N 1 ,N 1 -tetraamyl 3,4-dimethyladipamide N,N,N 1 ,N 1 -tetrabutyl 3,4-diethyladipamide 2,2 1 -bis-(cyclohexanecarbonitrile) 2,2 1 -bis-(cyclopentanecarbonitrile) 2,2 1 -bis-(ethoxycarbonylcyclohexane) 2,2 1 -bis-(butoxycarbonylcyclopentane) 2,2 1 -bis-(cyclohexanecarboxamide) 2,2 1 -bis-(N,N-diethylcycloheptanecarboxamide) 2-oxo-4-phenyl-6-cyanohexane 2-oxo-4,4-dimethyl-6-cyanohexane 1,6-dichlorohexane 1,6-difluoro-3,4-dimethylhexane

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