公开(公告)号：ES2146438T3

公开(公告)日：2000-08-01

申请号：ES97108224

申请日：1997-05-21

Applicant: BASF AG

Inventor： HUBER GUNTHER ,  WEIPER-IDELMANN ANDREAS DR ,  KRAMER ANDREAS DR ,  GOLOMBEK ROLF DR ,  FREDE MARKUS DR ,  SPISKE LUISE DR

IPC: C25B3/25 ,  C25B11/00 ,  C25B3/04 ,  C25B11/04

Abstract: Electrochemically reducing an organic compound comprises: contacting the compound with a cathode comprising a support of electrically conducting material and an electrically conducting, cathodically polarised layer formed on this by sedimentation in situ.

公开(公告)号：ES2129988T3

公开(公告)日：1999-06-16

申请号：ES96930164

申请日：1996-09-04

Applicant: BASF AG

Inventor： PUTTER HERMANN ,  HUBER GUNTHER ,  SPISKE LUISE ,  STARK HANS ,  SCHLAFER DIETER ,  PFORR GERHARD

IPC: C25C3/02

Abstract: A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte, a fused electrolyte essentially containing sodium tetrachloroaluminate is electrolyzed in the anode compartment, aluminum chloride formed in this process is evaporated from the electrolytic cell and sodium is removed from the cathode compartment.

公开(公告)号：DE4219756A1

公开(公告)日：1993-12-23

申请号：DE4219756

申请日：1992-06-17

Applicant: BASF AG

Inventor： SEELIGER URSULA DR ,  MUELLER WOLFGANG DR ,  HEIMANN FRANK DR ,  HUBER GUNTHER ,  HABERMANN WOLFGANG ,  VOSS HARTWIG DR ,  SIEGEL HARDO DR

IPC: B01D61/44 ,  B01D61/52 ,  C07C51/06 ,  C07C51/09 ,  C07C51/43 ,  C07C55/14 ,  C07C209/62 ,  C07C211/12 ,  C08G69/28 ,  C08G69/48 ,  C08J11/16 ,  C25B3/00 ,  C07C55/02 ,  C07C211/09

Abstract: Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers, by decomposing these polymers into their constituent monomers by treating the polymers or compounds with a base in an alcoholic solution and subsequently converting electrochemically the dicarboxylic-acid salts thus produced into the corresponding dicarboxylic acids and bases.

公开(公告)号：GB2421238A

公开(公告)日：2006-06-21

申请号：GB0427574

申请日：2004-12-16

Applicant: BASF AG

Inventor： SCHIERLE-ARNDT KERSTIN ,  HUBER GUNTHER ,  HEAVENS STEPHEN NICHOLAS ,  BLACKBURN JOHN STUART ,  JONES IVOR WYNN

IPC: C01F7/04 ,  C04B35/113 ,  C04B35/119 ,  C25C3/02

Abstract: A solid polycrystalline potassium ion conductor having a b ''-Al2O3 structure is obtainable by means of ion exchange of the alkali metal ions of a polycrystalline alkali metal b ''-Al2O3 moulding, in which the alkali metal ions are sodium ions or a mixture of sodium and potassium ions and the molar ratio M2O (M = alkali metal) to Al2O3 is 1: x, x being an integer or non-integer number within the range 5 to 11, for potassium ions, the ion exchange being effected by a method wherein neither chloride-containing nor liquid potassium Ion sources are used, the method comprising the steps of: embedding the polycrystalline alkali metal b ''-Al2O3 moulding in an oxidic powder containing potassium and aluminium of a molar K2O: Al2O3 ratio within the range of 1: (x-1) to 1: (x+1), the weight of oxidic powder amounting to at least two times the weight of the moulding; heating the embedded moulding at a rate of at least 100{C per hour to at least 1100{C; and further heating to at least 1300{C, this temperature being maintained for at least one hour prior to cooling. Potassium metal may be obtained, starting from potassium amalgam, by electrolysis using an anode containing potassium amalgam, liquid potassium metal as a cathode and this solid potassium ion conductor as a membrane separating cathode and anode spaces.

公开(公告)号：ES2220280T3

公开(公告)日：2004-12-16

申请号：ES00106014

申请日：2000-03-28

Applicant: BASF AG

Inventor： SCHIERLE KERSTIN DR ,  PUTTER HERMANN DR ,  HUBER GUNTHER ,  SCHLAFER DIETER DR ,  GUTH JOSEF

IPC: C25C1/02 ,  C25C1/24 ,  C25C3/02

Abstract: Procedimiento para la obtención de litio metálico, partiendo de una solución acuosa de al menos una sal de litio, que comprende las siguientes etapas: (I) Obtención de una amalgama de litio a partir de una solución acuosa de al menos una sal de litio; y (II) Electrólisis con un ánodo que contiene la amalgama de litio, un electrólito conductor de iones de litio y impermeable al helio y litio líquido como cátodo, caracterizado porque se muevo la amalgama de litio como ánodo.

公开(公告)号：DE4219758A1

公开(公告)日：1993-12-23

申请号：DE4219758

申请日：1992-06-17

Applicant: BASF AG

Inventor： SEELIGER URSULA DR ,  MUELLER WOLFGANG DR ,  HABERMANN WOLFGANG ,  HUBER GUNTHER ,  HEIMANN FRANK DR ,  VOS HARTWIG DR ,  SIEGEL HARDO DR

IPC: B01D61/44 ,  C07C51/02 ,  C07C55/14 ,  C25B3/00 ,  C07C55/02

Abstract: The invention concerns the electrochemical preparation of dicarboxylic acids by subjecting an aqueous solution containing essentially the alkali-metal salt of a dicarboxylic acid of the general formula (I): HOOC-(CH2)n-COOH, in which n may be an integer from 1 to 8, or mixtures of such dicarboxylic acids, to an electrochemical treatment.

公开(公告)号：CA2228561C

公开(公告)日：2007-06-12

申请号：CA2228561

申请日：1996-09-04

Applicant: BASF AG

Inventor： HUBER GUNTHER ,  PUTTER HERMANN ,  SCHLAFER DIETER ,  PFORR GERHARD ,  STARK HANS ,  SPISKE LUISE

IPC: C25C3/02

Abstract: Proposed is an electrolytic method for the production of sodium and aluminiu m chloride in an electrolytic cell with an aluminium anode and a sodium cathode separated from each other by a sodium-ion- conducting solid electrolyte. In the anode region, molten electrolyte containing essentially sodium tetrachloroaluminate is electrolysed, the aluminium chloride produced being evaporated out of the cell and the sodium produced being tapped off from the cathode region.

公开(公告)号：ES2218029T3

公开(公告)日：2004-11-16

申请号：ES00111875

申请日：2000-06-09

Applicant: BASF AG

Inventor： HUBER GUNTHER ,  PUTTER HERMANN DR ,  SCHIERLE-ARNDT KERSTIN DR ,  SCHLAFER DIETER DR ,  GUTH JOSEF

IPC: C25B1/36 ,  C25C3/02 ,  C25C7/00 ,  C25C7/02 ,  C25C7/04 ,  C25D1/14

Abstract: Electrolysis cell comprises a moving alkali metal amalgam-containing anode, an alkali metal ion-conducting solid electrolyte, and a cathode. The solid electrolyte and the cathode are separated from each other by a liquid electrolyte.

公开(公告)号：CA2302769A1

公开(公告)日：1999-03-18

申请号：CA2302769

申请日：1997-09-05

Applicant: BASF AG

Inventor： HUBER GUNTHER ,  WEIPER-IDELMANN ANDREAS ,  FREDE MARKUS ,  STEUER VOLKER ,  SCHEHLMANN KARL-HEINZ ,  SPISKE LUISE ,  GOLOMBEK ROLF ,  KRAMER ANDREAS

IPC: C25B3/25 ,  C25B11/00 ,  C25B3/04 ,  C25B11/04

Abstract: A process for the electrochemical reduction of an organic compound by bringing the organic compound into contact with a cathode, wherein the cathode comprises a support made of an electrically conductive material and an electrically conductive, cathodically polarized layer formed thereon in situ by alluviation.