21.
    发明专利
    未知

    公开(公告)号:FR1486561A

    公开(公告)日:1967-06-30

    申请号:FR68877

    申请日:1966-07-09

    Applicant: BASF AG

    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 Electrolyte may be supplied and withdrawn, preferably recycled through a heat exchanger, to enable it to flow through the electrode pair(s).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.

    Organic polymers for use as electrical semi-conductors

    公开(公告)号:GB1000679A

    公开(公告)日:1965-08-11

    申请号:GB1464164

    申请日:1964-04-09

    Applicant: BASF AG

    Abstract: Polymers suitable for use as electrical semi-conductors are obtained by heating a compound having an aromatic nucleus which is either a hydrocarbon or a hydrocarbon having a hetero atom in the aromatic nucleus, with a substance, or mixture of substances, which acts both as a Friedel-Crafts catalyst and as a dehydrogenating agent, at 100 DEG to 800 DEG C. in the presence of an inert gas and in the absence of oxygen. The polymer may have a conductivity of 10-10 to 10-0.5 mho. The compound having an aromatic nucleus may be benzene, toluene, xylene, diphenyl, pyrene, perylene, naphthalene, anthracene, phenanthrene, thiophene, pyrrole, indole or carbazole. Either a substance acting as a Friedel-Crafts catalyst mixed with a substance acting as a dehydrogenating agent, or a substance acting both as a Friedel-Crafts catalyst and as a dehydrogenating agent, may be used. In examples, polymers are prepared in the presence of aluminium trichloride mixed with copper dichloride, aluminium tribromide mixed with copper dichloride, aluminium trichloride mixed with iron trichloride, titanium tetrachloride mixed with iron trichloride, and aluminium trichloride mixed with tetrachloroquinone. The conductivity of the polymers may be increased by heating them at 100 DEG to 1000 DEG C. in an inert atmosphere.

    MANUFACTURE OF SEBACIC ACID DIESTERS

    公开(公告)号:CA976501A

    公开(公告)日:1975-10-21

    申请号:CA112633

    申请日:1971-05-10

    Applicant: BASF AG

    Abstract: 1340095 Sebacic acid diesters BADISCHE ANILIN- & SODA-FABRIK AG 11 May 1971 [12 May 1970] 14117/71 Heading C2C [Also in Division C7] Sebacic acid diesters of C 4-12 alcohols, e.g. di- 2-ethylhexyl sebacate, are made by electrochemical condensation of the corresponding adipic acid monoesters, e.g. mono-2-ethylhexyl adipate, in methanolic solution additionally containing (a) 5 to 40% of a saturated mono- or poly-valent aliphatic ether, e.g. diethyl, di-isopropyl, diglycoldimethyl or -ethyl ether, or saturated cyclic ether or diether, e.g. tetrahydrofuran, tetrahydropyran or dioxane, and/or (b) 0À1 to 2% of an alkanoic acid having up to 4 C atoms, e.g. glacial acetic, propionic or butyric acid. The current flow may be continuous or intermittent, e.g. breaking for 2 to 60 seconds after flowing for 1 to 30 minutes. The C.D. may be 5 to 50 A/dm. 2 The acidic solution may be partially neutralized by adding sodium (bi)- carbonate or methoxide. The anode may be of Pt, Pt-Rh, Pt-Ir, Au, Au-Pt, Au plated or platinized Ti or Ta; the cathode may be of Pt, steel, Ni or Ti. The electrolytic cell may have permeable vibrating or impermeable pairs of electrodes.

    BIPOLAR ELECTRODES
    29.
    发明专利

    公开(公告)号:CA953686A

    公开(公告)日:1974-08-27

    申请号:CA119457

    申请日:1971-07-29

    Applicant: BASF AG

    Abstract: Bipolar electrodes having two chambers for inflow and outflow of the reaction mixture to be electrolyzed. The chambers are separated from each other by a distance which is considerably larger than their width and the inlets and outlets are on the same side of the electrode. Electrodes of this kind are suitable, for example, for the Kolbe synthesis of dicarboxylic esters from dicarboxylic half-esters. Such esters are useful as plasticizers.

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