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    PROCESS FOR THE MANUFACTURE OF SEBACIC ACID DIESTERS OF HIGHER ALCOHOLS
    22.
    发明专利
    PROCESS FOR THE MANUFACTURE OF SEBACIC ACID DIESTERS OF HIGHER ALCOHOLS 未知

    公开(公告)号：CA975711A

    公开(公告)日：1975-10-07

    申请号：CA119946

    申请日：1971-08-05

    Applicant: BASF AG

    Inventor： EISELE WOLFGANG ,  NOHE HEINZ ,  SUTER HUBERT

    IPC: C25B3/29

    Abstract: 1352763 Sebacic acid diesters BADISCHE ANILIN- & SODA-FABRIK AG 11 Aug 1971 [12 Aug 1970] 37676/71 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, the current flow through the electrolytic cell being intermittently stopped, e.g. for periods of 2 to 60 seconds at intervals of 1 to 30 minutes, and the electrodes being short-circuited. The solution may also contain 5 to 20% of methylethyl ketone or cyclohexanone, and 0À5 to 2% of acetic acid; the acidic solution may be partially neutralized by adding sodium (bi)-carbonate or methoxide. The C.D. may be 5 to 50 A/dm. 2 The anode may be of Pt, Pt-Rh, Pt-Ru, Pt-Ir, Au, Au-Pt, Au plated or platinized Ti or Ta or Ru oxide; the cathode may be of Pt, stainless steel, Ni or Ti. The cell may have permable vibrating pairs of electrodes, or impermeable non-vibrating electrodes.

    BIPOLAR ELECTRODES
    23.
    发明专利
    BIPOLAR ELECTRODES 未知

    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

    Inventor： EISELE WOLFGANG ,  NOHE HEINZ ,  VON AMMON HANS ,  BECK FRITZ ,  SUTER HUBERT

    IPC: C25B3/29

    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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