公开(公告)号：DE3300865A1

公开(公告)日：1983-07-21

申请号：DE3300865

申请日：1983-01-13

Applicant: BASF AG

Inventor： PUETTER HERMANN DIPL CHEM DR ,  ROOS HANS DIPL CHEM DR

IPC: C25B1/00 ,  C25B11/12

Abstract: Aqueous titanium(III) chloride solutions are produced by cathodic reduction of titanium(IV) chloride solutions in cells in which the catholyte and anolyte are separated from one another. The cathodes used are graphite electrodes whose surface is coated with borides, silicides, carbides, nitrides and/or oxides of titanium, tungsten, zirconium, tantalum, niobium and/or hafnium.

公开(公告)号：DE3230518A1

公开(公告)日：1983-03-10

申请号：DE3230518

申请日：1982-08-17

Applicant: BASF AG

Inventor： ROOS HANS DIPL CHEM DR ,  BOEHN HUGO ,  BITTLER KNUT DIPL CHEM DR ,  SCHLAEFER DIETER DIPL CHEM DR

IPC: C25B11/04

Abstract: Bipolar electrodes having graphite as support are furnished with a layer of chromium trioxide on both the anode side and the cathode side. The chromium trioxide layer has a layer thickness of at least 10 mu m. The electrodes are produced by plasma spraying of pulverulent chromium trioxide onto a graphite support body. The electrodes can be used as bipolar electrodes in cells for the electrolysis of alkali metal chlorides.

公开(公告)号：DE3132726A1

公开(公告)日：1983-03-03

申请号：DE3132726

申请日：1981-08-19

Applicant: BASF AG

Inventor： DEGNER DIETER DIPL CHEM DR ,  ROOS HANS DIPL CHEM DR ,  HANNEBAUM HEINZ

IPC: C25B3/23 ,  C25B3/02 ,  C07C47/542

Abstract: A process for the preparation of alkyl-substituted benzaldehydes by electrooxidation of alkylbenzenes using graphite anodes coated with metal oxides or with carbides.

公开(公告)号：DE3024611A1

公开(公告)日：1982-01-28

申请号：DE3024611

申请日：1980-06-28

Applicant: BASF AG

Inventor： ROOS HANS DIPL CHEM DR ,  BOEHN HUGO ,  BITTLER KNUT DIPL CHEM DR ,  KIENER VOLKER DIPL CHEM DR ,  WUNSCH GERD DIPL CHEM DR

IPC: C25B11/06 ,  C23C4/06 ,  C25B1/34 ,  C25B11/04 ,  C25C7/02 ,  C25B1/26

Abstract: In an electrode suitable for electrolysis of aqueous sodium chloride or potassium chloride solutions, at least the outer layer contains spinels, specifically a mixture of the individual spinels of iron and of cobalt, the weight ratio of iron spinels: cobalt spinels being from 30:70 to 90:10. The electrodes are produced by applying a powder mixture of iron spinel and cobalt spinel to a substrate by a plasma spraying process wherein argon is used as the plasma gas and the spraying energy is from 6 to 30 kW.