公开(公告)号：JPH10130179A

公开(公告)日：1998-05-19

申请号：JP28952597

申请日：1997-10-22

Applicant: BASF AG

Inventor： STROEZEL MANFRED ,  RHEUDE UDO DR ,  RAHN RALF-THOMAS DR ,  KAIBEL GERD DR

IPC: C07B49/00 ,  C07C29/124 ,  C07C29/40 ,  C07C31/00 ,  C07C33/02

Abstract: PROBLEM TO BE SOLVED: To provide an improved method that enables to carry out, addition reaction between a Grignard compound and a carbonyl compound and the subsequent hydrolysis, without any trouble with respect to the plant-operation. SOLUTION: This method removes almost all the heat that is generated during exothermic reaction(s) of (a) an addition reaction between a halogenated organomagnesium compound shown by the formula RMgX (R is a 1-6C alkyl, 2-6C alkenyl, 2-6C alkynyl, or an aryl; X is Cl, Br, or I) and a carbonyl compound and/or (b) a hydrolysis of the resulting addition product, by carrying out at least one of these reactions in a solvent or a mixture of solvents and evaporating the solvent or the mixture of solvents.

公开(公告)号：MY136093A

公开(公告)日：2008-08-29

申请号：MYPI20015588

申请日：2001-12-07

Applicant: BASF AG

Inventor： BORCHERT HOLGER DR ,  SCHLITTER STEPHAN DR ,  FISCHER ROLF-HARTMUTH DR ,  ROESCH MARKUS DR ,  STEIN FRANK DR ,  RAHN RALF-THOMAS DR ,  WECK ALEXANDER

IPC: B01J23/72 ,  B01J23/76 ,  B01J23/80 ,  B01J23/89 ,  B01J37/02 ,  C07B61/00 ,  C07D307/08 ,  C07D307/33 ,  C07D315/00

Abstract: A CATALYST FOR THE HYDROGENATION OF CA-DICARBOXYLIC ACIDS AND/OR THEIR DERIVATIVES,PREFERABLY MALEIC ANHYDRIDE, IN THE GAS PHASE COMPRISES FROM 5 TO 100% BY WEIGHT, PREFERABLY FROM 40 TO 90% BY WEIGHT, OF COPPER OXIDE AND FROM 0 TO 95% BY WEIGHT, PREFERABLY FROM 10 TO 60% BY WEIGHT, OF ONE OR MORE METALS OR COMPOUNDS THEREOF SELECTED FROM THE GROUP CONSISTING OF Ai, Si, Zn, Pd, La, Ce, THE ELEMENTS OF GROUPS III A TO VIII A AND GROUPS I A AND II A AS ACTIVE COMPOSITION APPLIED IN THE FORM OF A THIN LAYER TO AN INERT SUPPORT MATERIAL.

公开(公告)号：ES2172726T3

公开(公告)日：2002-10-01

申请号：ES97118174

申请日：1997-10-20

Applicant: BASF AG

Inventor： STROEZEL MANFRED ,  RHEUDE UDO DR ,  RAHN RALF-THOMAS DR ,  KAIBEL GERD DR

IPC: C07B49/00 ,  C07C29/124 ,  C07C29/40 ,  C07C31/00 ,  C07C33/02

Abstract: A process for carrying out exothermic reactions comprises (a) addition reaction of an organomagnesium halide of formula RMgX with a carbonyl compound; and (b) hydrolysis of the addition product in a solvent or solvent mixture, in which much of the heat liberated in the reaction is removed by evaporation of the solvent. R = 1-6C alkyl, alkenyl or alkynyl, or aryl; X = Cl, Br or I.

公开(公告)号：MY128721A

公开(公告)日：2007-02-28

申请号：MYPI20021235

申请日：2002-04-05

Applicant: BASF AG

Inventor： RAHN RALF-THOMAS DR ,  WECK ALEXANDER ,  KAIBEL GERD DR

IPC: C07C51/573 ,  C07D307/60 ,  C07C51/215 ,  C07C51/44 ,  C07C57/145 ,  C07C57/15

Abstract: IN A PROCESS FOR PURIFYING AN ORGANIC SOLVENT FOR THE ABSORPTION OF MALEIC ANHYDRIDE FROM A GASEOUS MIXTURE, IN WHICH THE MALEIC ANHYDRIDE IS SEPARATED OFF FROM THE SOLVENT, A SUBSTREAM IS TAKEN FROM THE SOLVENT STREAM, THIS SUBSTREAM IS DISTILLED AND RETURNED TO THE SOLVENT CIRCUIT, THE PROPOSED IMPROVEMENT COMPRISES SEPARATING OFF A LOW-BOILING FRACTION AND A HIGH-BOILING FRACTION FROM THE FRACTION CONSISTING ESSENTIALLY OF PURIFIED SOLVENT AND FEEDING THE FRACTION CONSISTING ESSENTIALLY OF PURIFIED SOLVENT BACK INTO THE SOLVENT STREAM.

公开(公告)号：DE59500903D1

公开(公告)日：1997-12-04

申请号：DE59500903

申请日：1995-07-31

Applicant: BASF AG

Inventor： RUEHL THOMAS DR ,  HEIDER MARC DR ,  HENKELMANN JOCHEM DR ,  RAHN RALF-THOMAS DR ,  RUST HARALD

IPC: C07C67/54 ,  C07C69/01 ,  C07C69/06 ,  C07C69/07

Abstract: Recovery of pure vinyl formate (I) by distn. to separate by-prodn. from synthesis is carried out in two stages, HCOOH and water being sepd. in stage one and CH3CHO in stage two.

公开(公告)号：DE4428303A1

公开(公告)日：1996-02-15

申请号：DE4428303

申请日：1994-08-10

Applicant: BASF AG

Inventor： RUEHL THOMAS DR ,  HEIDER MARC DR ,  HENKELMANN JOCHEM DR ,  RAHN RALF-THOMAS DR ,  RUST HARALD

IPC: C07C67/54 ,  C07C69/01 ,  C07C69/06 ,  C07C69/07

Abstract: Recovery of pure vinyl formate (I) by distn. to separate by-prodn. from synthesis is carried out in two stages, HCOOH and water being sepd. in stage one and CH3CHO in stage two.

公开(公告)号：MY137707A

公开(公告)日：2009-02-27

申请号：MYPI20015608

申请日：2001-12-10

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH DR ,  WECK ALEXANDER ,  STEIN FRANK DR ,  PINKOS ROLF DR ,  HESSE MICHAEL DR ,  SPRAGUE MICHAEL JOLYON DR ,  SCH MARKUS R XD DR ,  BORCHERT HOLGER DR ,  SCHLITTER STEPHAN DR ,  RAHN RALF-THOMAS DR

IPC: B01J23/72 ,  B01J23/80 ,  C07C27/06 ,  C07D307/08

Abstract: UNSUBSTITUTED OR ALKYL-SUBSTITUTED THF IS OBTAINED BY CATALYTIC HYDROGENATION IN THE GAS PHASE OF C4-DICARBOXYLIC ACIDS AND/OR THEIR DERIVATIVES USING A CATALYST COMPRISING 20BY WEIGHT, PREFERABLY >30BY WEIGHT IN PARTICULARLY FROM 35 TO 90BY WEIGHT, OF AN OXIDIC SUPPORT HAVING ACID CENTERS, AT A HOT SPOT TEMPERATURE OF FROM 240 TO 310°C, PREFERABLY FROM 240 TO 280°C, AND A WHSV OVER THE CATALYST OF FROM 0.01 TO 1.0, PREFERABLY FROM0.02 TO 1, IN PARTICULARLY FROM 0.05 TO 0.5, kg OF STARTING MATERIAL/L OF CATALYST x HOUR.

公开(公告)号：ES2107886T3

公开(公告)日：1997-12-01

申请号：ES95112004

申请日：1995-07-31

Applicant: BASF AG

Inventor： RUHL THOMAS DR ,  HEIDER MARC DR ,  HENKELMANN JOCHEM DR ,  RAHN RALF-THOMAS DR ,  RUST HARALD

IPC: C07C67/54 ,  C07C69/01 ,  C07C69/06 ,  C07C69/07

Abstract: Recovery of pure vinyl formate (I) by distn. to separate by-prodn. from synthesis is carried out in two stages, HCOOH and water being sepd. in stage one and CH3CHO in stage two.

公开(公告)号：MY141592A

公开(公告)日：2010-05-14

申请号：MYPI20040126

申请日：2004-01-16

Applicant: BASF AG

Inventor： KUHRS CHRISTIAN DR ,  DANZ ECKEHARD DR ,  STEINER WOLFGANG DR ,  RAHN RALF-THOMAS DR ,  GRASLER THOMAS DR ,  GEIER REINER DR ,  HARTH KLAUS DR ,  HOELZIE MARKUS DR

IPC: C07D251/60 ,  C07D251/62

Abstract: THE PRESENT INVENTION RELATES TO A PRECESS FOR THE CATALYTIC PREPARATION OF MELAMINE BY DECOMPOSITION OF UREA OVER PARTICULAR SOLID CATALYSTS USING A MAIN REACTOR AND AN AFTER-REACTOR. A CATALYST HAVING A LOW LEWIS ACIDITY IS USED IN THE MAIN REACTOR AND A CATALYST HAVING AN EQUAL OR PREFERABLY HIGHER LEWIS ACIDITY IS USED IN THE AFTER-REACTOR.

公开(公告)号：AT223366T

公开(公告)日：2002-09-15

申请号：AT99123283

申请日：1999-11-30

Applicant: BASF AG

Inventor： RAHN RALF-THOMAS DR ,  RUST HARALD ,  RUEHL THOMAS DR ,  HENKELMANN JOCHEM DR ,  STUTZ SUSANNE DR

IPC: C07C29/82 ,  C07C29/16 ,  C07C29/80 ,  C07C33/025 ,  C07C33/042 ,  C07C33/048

Abstract: Distillative recovery of alpha -ethynyl-carbinols (I) from the liquid reaction mixture from the addition of acetylene to alpha , beta -unsaturated carbonyl compounds comprises continuous distillation, in which the feed is passed to the middle of the distillation column, most of the water is distilled off at the top as azeotrope with the solvent and (I) is recovered below the feed port.