公开(公告)号：EE200300406A

公开(公告)日：2003-12-15

申请号：EEP200300406

申请日：2002-02-20

Applicant: BASF AG

Inventor： BALDENIUS KAI-UWE ,  BECK CHRISTINE ,  FISCHER ANDREAS ,  HARZ HANS-PETER ,  LOHSCHEIDT MARKUS ,  LEEMANN MARTIN

IPC: C12P13/00 ,  A23K10/12 ,  A23K20/174 ,  C12P13/02 ,  C12R1/10 ,  A23K1/00

Abstract: The invention relates to an improved method for producing D-pantothenic acid and/or salts thereof and to the use thereof as an additive for animal feed.

公开(公告)号：DE10209195A1

公开(公告)日：2003-09-18

申请号：DE10209195

申请日：2002-03-04

Applicant: BASF AG

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

IPC: C07C41/58 ,  C07C43/32 ,  C25B3/23 ,  C25B3/02

Abstract: Production of trialkylorthoformates (I) comprises producing diacetal (D) in a first stage, from an aqueous reaction mixture (R) of glyoxal, a monofunctional 1-6C alcohol (A), and an acid catalyst, where (D) is produced at at least 70% of equilibrium yield. In a second stage, isolated (D) is electrochemically oxidized in a liquid electrolyte (E) with (A), to give (I). Production of trialkylorthoformates (I) comprises: (1) preparing a diacetal (D) of glyoxal and a monofunctional 1-6C alcohol (A), where a liquid mixture (M1) containing water, (A), and glyoxal are brought in contact with an acid catalyst for as long a time such that the concentration of (D) in the reaction mixture (R) is at least 70% of the equilibrium concentration, followed by isolation of (D) from the reaction mixture; and (2) electrochemically oxidizing (D) in a liquid electrolyte (E) with (A) to give (I), followed by isolation of (I) from (E).

公开(公告)号：DE10207238A1

公开(公告)日：2003-09-11

申请号：DE10207238

申请日：2002-02-21

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  PUETTER HERMANN ,  BOTZEM JOERG ,  HAAG THOMAS

IPC: C25B3/23 ,  C25B3/02 ,  C07C43/30

Abstract: Production of organic compounds by electrochemical reaction of corresponding organic starting compounds at graphite, carbon black or carbon electrodes in a liquid electrolyte comprises addition of a metal salt derived from a Group 1, 2, 6, 7 or 8 metal or lead, tin or rhenium to the electrolyte whereby the electrolyte has a dielectric constant of less than 20. A process for the production of organic compounds (I) by electrochemical reaction of corresponding organic starting compounds (II) at graphite, carbon black or carbon electrodes in a liquid electrolyte (E) is claimed whereby 0.01 mmol-1 mole of a metal salt (M) (calculated as moles of metal ions per kg of (E)), derived from a Group 1, 2, 6, 7 or 8 metal or lead, tin or rhenium is added to the electrolyte (E) prior to or during the electrochemical reaction and the composition of the electrolyte (E) is such that (E) has a dielectric constant of less than 20.

公开(公告)号：DE10146566A1

公开(公告)日：2003-07-17

申请号：DE10146566

申请日：2001-09-21

Applicant: BASF AG

Inventor： PUETTER HERMANN ,  FISCHER ANDREAS

IPC: C07C41/60 ,  C07C43/32 ,  C25B3/23 ,  C25B3/02 ,  C25B9/00

Abstract: A process for the preparation of orthoesters of the general formula I,

公开(公告)号：NO20024707L

公开(公告)日：2003-04-07

申请号：NO20024707

申请日：2002-10-01

Applicant: BASF AG

Inventor： HEYDRICH GUNNAR ,  AUST NICOLA CHRISTIANE ,  PUETTER HERMANN ,  FISCHER ANDREAS ,  BOTZEN JOERG

IPC: C07B61/00 ,  C07C41/50 ,  C07C43/303 ,  C07C47/198 ,  C07C41/56

Abstract: The production of diacetals (I) of glyoxal (II) from aqueous glyoxal and monohydric alcohols (III) with an acid catalyst (IV) involves leaving a mixture of (III) and (II) in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration. production of diacetals (I) of glyoxal (II) from 40-75 wt% aqueous glyoxal and monohydric alcohols (III) with acid catalyst (IV) involves leaving a mixture of (III) and (II) (mol ratio = at least 15:1) and not more than 8 wt% water in contact with (IV) until the content of (I) is at least 70% of the equilibrium concentration (without distilling off more than 5 wt% of the alcohol).

公开(公告)号：NO20024707A

公开(公告)日：2003-04-07

申请号：NO20024707

申请日：2002-10-01

Applicant: BASF AG

Inventor： HEYDRICH GUNNAR ,  AUST NICOLA CHRISTIANE ,  PUETTER HERMANN ,  FISCHER ANDREAS ,  BOTZEN JOERG

IPC: C07B61/00 ,  C07C41/50 ,  C07C43/303 ,  C07C47/198 ,  C07C41/56

CPC classification number: C07C41/56 ,  C07C43/303 ,  C07C47/198

公开(公告)号：NO20031025D0

公开(公告)日：2003-03-05

申请号：NO20031025

申请日：2003-03-05

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  PUETTER HERMANN

IPC: C25B3/23 ,  C07C43/32 ,  C07C

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：BR0015202A

公开(公告)日：2002-07-23

申请号：BR0015202

申请日：2000-11-03

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  MARTIN CHRISTOPH ,  LLER J RGEN M

IPC: C01D1/44 ,  B01D61/44 ,  C12P13/04 ,  C12P13/08

Abstract: A process is described for purifying an amino acid-containing solution by means of electrodialysis, wherein an amino acid-containing solution is employed which is obtained from the fermentation for producing at least one amino acid.

公开(公告)号：DE10043789A1

公开(公告)日：2002-03-14

申请号：DE10043789

申请日：2000-09-06

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  PUETTER HERMANN

IPC: C07C43/32 ,  C25B3/23 ,  C25B3/02 ,  C07B41/04 ,  C07C41/60 ,  C07C67/30

Abstract: Production of orthocarboxylic acid trialkyl esters (O) by electrochemical oxidation of: (i) alpha , beta -diketones or alpha , beta -hydroxyketones in which the keto function (K) is in the form of a 1-4C alkyl alcohol-derived ketal function and the OH function is optionally in the form of a 1-4C alkyl alcohol-derived ether function in presence of (ii) a 1-4C alkyl alcohol (A) such that the molar ratio in the electrolyte of (O + K):(A) is 0.2-5:1.

公开(公告)号：CA2421353C

公开(公告)日：2010-07-13

申请号：CA2421353

申请日：2001-09-05

Applicant: BASF AG

Inventor： FISCHER ANDREAS ,  PUTTER HERMANN

IPC: C07C43/32 ,  C07C41/60 ,  C25B3/23

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 C4-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.