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    1.
    发明专利
    未知

    公开(公告)号：DE1958231A1

    公开(公告)日：1971-05-27

    申请号：DE1958231

    申请日：1969-11-20

    Applicant: BASF AG

    Inventor： WINTERSBERGER KARL DR ,  WAWERSIK HENNING DR ,  HARTMANN JOB-WERNER DR

    IPC: G11B5/66 ,  C23C18/16 ,  C23C18/20 ,  C23C18/31 ,  C23C18/50 ,  G11B5/64 ,  G11B5/73 ,  G11B5/738 ,  H01F10/06 ,  G11B5/84

    Abstract: 1321114 Depositing magnetic coatings BADISCHE ANILIN & SODA-FABRIK AG 19 Nov 1970 [20 Nov 1969] 54967/70 Heading C7F [Also in Division H1] In making magnetic recording media (see Division H1), a 0À1-2Á thick layer of magnetisable metal, such as iron, nickel, cobalt or ferromagnetic alloys thereof, is deposited by chemical reduction on a substrate comprising an inorganic pigment dispersed in a polymeric binder, In an Example a substrate comprising rutile TiO 2 in a vinyl copolymer is pre-treated with solutions of caustic soda, tin (II) chloride and palladium (II) chloride. A film of cobalt (0À5Á thick, roughness

    6.
    发明专利
    未知

    公开(公告)号：AT274748B

    公开(公告)日：1969-09-25

    申请号：AT656966

    申请日：1966-07-08

    Applicant: BASF AG

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

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 Electrolyte may be supplied and withdrawn, preferably recycled through a heat exchanger, to enable it to flow through the electrode pair(s).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