公开(公告)号：JP2003176248A

公开(公告)日：2003-06-24

申请号：JP2002290014

申请日：2002-10-02

Applicant: BASF AG

Inventor： HEYDRICH GUNNAR ,  AUST NICOLA CHRISTIANE ,  PUTTER HERMANN ,  FISCHER ANDREAS ,  BOTZEM JOERG

IPC: C07B61/00 ,  C07C41/50 ,  C07C43/303 ,  C07C47/198

Abstract: PROBLEM TO BE SOLVED: To provide a method of producing glyoxal diacetal that uses a water- miscible alcohol and permits the continuous operation in high yield. SOLUTION: The reaction of 40-75 wt.% of glyoxal aqueous solution with a monohydric alcohol is carried out in the presence of an acid catalyst to produce a glyoxal diacetal. In this case, a liquid mixture including the alcohol and glyoxal in at least 15:1 molar ratio and water in an amount of ≤8 wt.% at the start of the reaction is brought into contact with an acid catalyst so that the alcohol used may not be distilled off over 5 wt.% until the concentration of the diacetal formed in the reaction mixture attains at least 70% of the equilibrium concentration. COPYRIGHT: (C)2003,JPO

公开(公告)号：MXPA06004620A

公开(公告)日：2006-12-14

申请号：MXPA06004620

申请日：2004-11-22

Applicant: BASF AG

Inventor： HESSE MICHAEL ,  MULLER ULRICH ,  WESSEL HELGE ,  GUZMANN MARCUS ,  SCHUBERT MARKUS ,  PUTTER HERMANN ,  HUFF JURGEN

IPC: C25B3/13 ,  B01J20/22 ,  B01J20/28 ,  B01J31/16 ,  B01J31/18 ,  B01J31/22 ,  C01B3/00 ,  C01B32/40 ,  C01B32/50 ,  H01M8/04

Abstract: Un metodo para preparar electroquimicamente un material de armazon metal-organico, poroso, cristalino que comprende cuando menos un compuesto organico al menos bidentado ligado coordinadamente a cuando menos un ion de metal, en un medio de reaccion que comprende el cuando menos un compuesto organico bidentado, en donde por lo menos un ion de metal se proporciona en el medio de reaccion mediante la oxidacion de un anodo que comprende el metal correspondiente.

公开(公告)号：CA2429542A1

公开(公告)日：2002-05-30

申请号：CA2429542

申请日：2001-11-16

Applicant: BASF AG

Inventor： PUTTER HERMANN ,  WEIPER-IDELMANN ANDREAS

IPC: C07C51/353 ,  C07D307/32 ,  C25B3/23 ,  C25B3/25 ,  C25B3/29 ,  C25B3/00 ,  C07C67/00 ,  C25B3/10 ,  C07C231/12 ,  C07C233/18 ,  C07C55/24

Abstract: The invention relates to a method for producing butane tetracarboxylic acid derivatives as a product of value I by coupled electrosynthesis. A compound from the group comprising the maleic acid esters, maleic acid ester derivatives, fumaric acid esters or fumaric acid ester derivatives is selected. At least one hydrogen atom in positions 2 and 3 is substituted by inert groups, is cathodically reduced and a product of value II is obtained on the anode.

公开(公告)号：CA2254788C

公开(公告)日：2005-03-01

申请号：CA2254788

申请日：1997-04-28

Applicant: BASF AG

Inventor： HANNEBAUM HEINZ ,  PUTTER HERMANN

IPC: C07D307/88 ,  C25B3/25 ,  C25B3/04

Abstract: A process is disclosed for preparing phthalides by cathodic reduction of phthalic acid or phthalic acid derivatives, in which the carboxylic acid units may be substituted by units which can be derived by a condensation reaction from carboxylic acid units and in which one or several hydrogen atoms of the o-phenylene unit of the phthalic acid m ay be substituted by inert radicals. This process is characterised in that the reduction is carried out in an organic solvent which contains le ss than 50 wt % water and in a non-divided electrolytic cell.

公开(公告)号：ES2194355T3

公开(公告)日：2003-11-16

申请号：ES98951436

申请日：1998-09-18

Applicant: BASF AG

Inventor： BAUMANN DIETER ,  PUTTER HERMANN ,  HANNEBAUM HEINZ

IPC: C07D307/88 ,  C25B3/25

Abstract: Phthalides in as-obtained phthalide synthesis reaction mixtures are recovered in pure form by(a) distilling compounds having a boiling point below the boiling point of the phthalide from the reaction mixture, provided such compounds are present in the reaction mixture, to obtain a crude phthalide as bottom product,(b) crystallizing the phthalide from a melt of the crude phthalide.

公开(公告)号：CA2421353A1

公开(公告)日：2003-03-05

申请号：CA2421353

申请日：2001-09-05

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  PUTTER HERMANN

IPC: C07C43/32 ,  C25B3/23 ,  C25B3/02

Abstract: The invention relates to a method for producing orthocarbonic acid trialkyl esters by electrochemical oxidation of alpha-beta-diketones or alpha-beta- hydroxy ketones in the presence of C1-to C4-alcohols (alcohol A), the keto function being present in the form of a ketal function derived from C1- to C 4- alykl alcohols and the hydroxyl function being optionally in the form of an ether function derived from C1- to C4-alykl alcohols (ketal K). The molar ratio of the ketal K to the alcohols A in the electrolytes is 0.2:1 to 10:1.

公开(公告)号：AU1220502A

公开(公告)日：2002-03-22

申请号：AU1220502

申请日：2001-09-05

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  PUTTER HERMANN

IPC: C07C43/32 ,  C25B3/23 ,  C25B3/02

Abstract: A process is provided for the preparation of trialkyl orthocarboxylates by the electrochemical oxidation of alpha, beta-diketones or alpha, beta-hydroxyketones, the keto group being present in the form of a ketal group derived from C 1 - to C 4 -alkylalcohols and the hydroxyl group optionally being present in the form of an ether group derived from C 1 - to C 4 -alkylalcohols (ketals K), in the presence of C 1 - to C 4 -alcohols (alcohols A), the molar ratio of the ketals K to the alcohols A in the electrolyte being 0.2:1 to 10:1.

公开(公告)号：CA2323343A1

公开(公告)日：2001-04-13

申请号：CA2323343

申请日：2000-10-12

Applicant: BASF AG

Inventor： PUTTER HERMANN ,  FISCHER ANDREAS

IPC: H01M4/86 ,  H01M8/04089 ,  H01M8/04276 ,  H01M8/08 ,  H01M8/083 ,  H01M8/00

Abstract: In a fuel cell which comprises at least the following elements: a) two electrodes which are each provided with at least one gas duct for a reaction gas, b) a liquid electrolyte, the respective gas ducts of the electrodes each have at least one inlet and run perpendicular to the migration direction of the ions under load prescribed by the arrangement of the electrodes.

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：CA2303876A1

公开(公告)日：1999-04-01

申请号：CA2303876

申请日：1998-09-18

Applicant: BASF AG

Inventor： PUTTER HERMANN ,  BAUMANN DIETER ,  HANNEBAUM HEINZ

IPC: C07D307/88 ,  C25B3/25

Abstract: Pure phthalides are produced from the reaction mixtures obtained in the phthalide production process by a) distilling off compounds with a boiling point below the boiling point of the phthalide from the reaction mixture, if such compounds are present, to obtain a residue of crude phthalide, and b) crystallising phthalide from a melt of the crude phthalide.