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    Production of adiponitrile
    1.
    发明授权
    Production of adiponitrile 失效
    生产ADIPONITRILE

    公开(公告)号：US3616320A

    公开(公告)日：1971-10-26

    申请号：US3616320D

    申请日：1969-03-17

    Applicant: BASF AG

    Inventor： BECK FRITZ ,  LEITNER HANS

    IPC: C25B3/10 ,  C07B29/06 ,  B01K3/00

    CPC classification number: C25B3/105

    Abstract: Production of adiponitrile by direct electrochemical hydrodimerization of acrylonitrile in a medium which contains acrylonitrile, and electrolyte salt, water and, if desired, a solvent at a temperature of from 10* to 60* C. and a pH value of from 1 to 10 using liquid-impermeable electrodes. The medium is passed through the pairs of electrodes which are 0.05 to 2 mm. apart. Adiponitrile is an important intermediate for synthetic fiber manufacture.

    Abstract translation: 通过使用含有丙烯腈，电解质盐，水和如果需要的溶剂，在10至60℃的温度下，在1至10的pH下，通过丙烯腈的直接电化学加氢聚合制备己二腈的方法 在该过程中，电解是在具有液体阴极的电池中进行的，该液体阴极与不被液体阴极润湿或固体阳极浸入其中的深度不超过20mm的固体阳极接触。 己二腈是合成纤维制造的重要中间体。

    Production of adiponitrile
    4.
    发明授权
    Production of adiponitrile 失效

    公开(公告)号：US3642592A

    公开(公告)日：1972-02-15

    申请号：US3642592D

    申请日：1969-03-17

    Applicant: BASF AG

    Inventor： BECK FRITZ ,  GUTHKE HARALD ,  LEITNER HANS

    IPC: C25B3/10 ,  C07B29/06

    CPC classification number: C25B3/105

    Abstract: Process for the production of adiponitrile by direct electrochemical hydrodimerization of acrylonitrile using a medium containing acrylonitrile, an electrolyte salt, water and, if desired, a solvent at a temperature of from 10* to 60* C. at a pH of from 1 to 10. In the process, electrolysis is carried out in a cell having a liquid cathode which is contacted by a solid anode which is not wetted by the liquid cathode or into which the solid anode is immersed to a depth of up to 20 mm. Adiponitrile is an important intermediate for synthetic fiber manufacture.

    Reductive dimerization of acrylonitrile
    5.
    发明授权
    Reductive dimerization of acrylonitrile 失效
    丙烯腈的还原二聚

    公开(公告)号：US3557186A

    公开(公告)日：1971-01-19

    申请号：US3557186D

    申请日：1968-06-17

    Applicant: BASF AG

    Inventor： LEITNER HANS ,  WINTERSBERGER KARL

    IPC: C07B31/00 ,  C07C121/26

    CPC classification number: C07B31/00

    Abstract: A PROCESS FOR THE REDUCTIVE DIMERIZATION OF A,B-UNSATURATED NITRILES, AMIDES OR ESTERS SUSCEPTIBLE TO MICHAEL REACTION BY TREATMENT WITH ALKALI METAL OR ALKALINE EARTH METAL AMALGAMS IN THE PRESENCE OF COMPOUNDS WHICH ARE PROTON DONORS BUT DO NOT REACT APPRECIABLY UNDER THE REACTION CONDITIONS, PARTICULARLY WATER, AND IN THE PRESENCE OF HEXAMETHYLETHYLENETETRAMINE.

    Carrying out electrochemical reactions
    9.
    发明专利
    Carrying out electrochemical reactions 未知

    公开(公告)号：GB1145539A

    公开(公告)日：1969-03-19

    申请号：GB3071266

    申请日：1966-07-08

    Applicant: BASF AG

    Inventor： BECK FRITZ ,  LEITNER HANS ,  GUTHKE HARALD ,  WINTERSBERGER KARL

    IPC: C25B3/25 ,  C25B3/29 ,  C25B9/17 ,  C25B15/00 ,  C25B15/06

    Abstract: 1,145,539. Electrolytic cell for producing organic compounds. BADISCHE ANILIN - & SODA - FABRIK A.G. July 8, 1966 [July 9, 1965; Jan.13, 1966], No.30712/66. Heading C7B. Apparatus for performing electro-chemical reactions of organic compounds in a flowing electrolyte, particularly the hydrodimerization of acrylonitrile to adiponitrile, comprises at least one uniformly liquid-permeable electrode pair 1a, b in which the electrodes are spaced less than 1 mm. apart, preferably separated by a liquid-permeable insulator 22, e.g. porous glass fibre cloth or paper, or porous plastic sheeting or ceramics. Electrolyte may be supplied and withdrawn, preferably recycled through a heat exchanger, to enable it to flow through the electrode pair(s). Pulsations may be imparted to the electrolyte and/or the electrode pair(s), e.g. by securing the electrode support and connection 4 to a vibrator 23. Current may be supplied through metal sleeves 2 pressed coaxially into plastic spoked-wheel shaped members 3. The electrodes may be made of metal or wire cloth, screens, expanded metal or sintered articles. Cathodes may be composed of Cu, brass or iron wire coated with Pb, Cd, Hg, Hg-Pb, Pb-Th, Hg-Ag, or Zn, Cu, Pt, Pd, Ni or graphite activated with Pt; anodes may be composed of metal or wire cloth or expanded metal support of Pt, Ni, Ti, or Ta coated with Ni or Pt with a coating of PbO 2 or Tl 2 O 3 , Pt, Pt-Ir, Pt-Rh, Ni, Fe, alloy steel or graphite. For producing adiponitrile with some propionitrile, examples are given of electrolytes composed of 66-81À5% acrylonitrile, 5-15% methanol or 20 or 22À5% isopropanol or 20% dioxane or dimethyl formamide, 7 or 8% water, and 0À5 or 1% tetramethyl ammonium methyl (or p-totuene) sulphate; the pH is regulated by adding acetic acid and triethylamine through a dropping funnel 27, and the off gas pipe passes through a reflux condenser 28. A solution of monomethyl adipate in methanol, electrochemically reacted with sodium methylate, is condensed to dimethyl sebacate. The apparatus may be used for other organic electro-chemical reactions.

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