公开(公告)号：ES2170416T3

公开(公告)日：2002-08-01

申请号：ES97943884

申请日：1997-09-23

Applicant: BASF AG

Inventor： BECKER RAINER ,  BROCKER FRANZ JOSEF ,  KAIBEL GERD ,  PINKOS ROLF ,  WULFF-DORING JOACHIM

IPC: B01J25/02 ,  B01J8/02 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C29/17 ,  C07C31/20

Abstract: A process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butynediol comprises reacting 1,4-butynediol with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydrogenation catalyst at from 20 to 300° C., a pressure of from 1 to 200 bar and values of the liquid-side volumetric mass transfer coefficient kLa of from 0.1 s-1 to 1 s-1a) using a catalyst suspended in the reaction medium, where if a packed bubble column is employed this is operated in the upflow mode and at a ratio of gas leaving the reaction vessel to gas fed to the reaction vessel of from 0.99:1 to 0.4:1, orb) passing the liquid and gas in cocurrent in an upward direction through a fixed-bed reactor operated in the gas-circulation mode while maintaining a ratio of the gas fed to the reaction vessel to gas leaving the reaction vessel of from 0.99:1 to 0.4:1.

公开(公告)号：DE59706114D1

公开(公告)日：2002-02-28

申请号：DE59706114

申请日：1997-09-23

Applicant: BASF AG

Inventor： BECKER RAINER ,  BROECKER JOSEF ,  KAIBEL GERD ,  PINKOS ROLF ,  WULFF-DOERING JOACHIM

IPC: B01J25/02 ,  B01J8/02 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C29/17 ,  C07C31/20

Abstract: A process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butynediol comprises reacting 1,4-butynediol with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydrogenation catalyst at from 20 to 300° C., a pressure of from 1 to 200 bar and values of the liquid-side volumetric mass transfer coefficient kLa of from 0.1 s-1 to 1 s-1a) using a catalyst suspended in the reaction medium, where if a packed bubble column is employed this is operated in the upflow mode and at a ratio of gas leaving the reaction vessel to gas fed to the reaction vessel of from 0.99:1 to 0.4:1, orb) passing the liquid and gas in cocurrent in an upward direction through a fixed-bed reactor operated in the gas-circulation mode while maintaining a ratio of the gas fed to the reaction vessel to gas leaving the reaction vessel of from 0.99:1 to 0.4:1.

公开(公告)号：DE19941569A1

公开(公告)日：2001-03-08

申请号：DE19941569

申请日：1999-09-01

Applicant: BASF AG

Inventor： FISCHER ROLF ,  PINKOS ROLF

IPC: C07D307/33

Abstract: The invention relates to a method for producing gamma-butyrolactone (GBL) by reacting 1,4-butandiol on a copper catalyst. The inventive method is characterized in that a reaction mixture is used which contains 1,4-butandiol, alcohols that differ from 1,4-butandiol, and water.

公开(公告)号：BR9810438A

公开(公告)日：2000-09-19

申请号：BR9810438

申请日：1998-06-04

Applicant: BASF AG

Inventor： EBEL KLAUS ,  PINKOS ROLF

IPC: B01J23/80 ,  C07B61/00 ,  C07C29/149 ,  C07C29/36 ,  C07C31/133 ,  C07C51/353 ,  C07C67/347

Abstract: 2-Cyclododecyl-propanol [sic], which is in demand as musk scent, is prepared in an advantageous industrial process by reacting cyclododecene with an excess of propionic acid or of a propionic acid derivative in the presence of catalytic amounts of a free-radical initiator, and subsequently catalytically hydrogenating the 2-cyclododecylpropionic acid which is formed or the corresponding 2-cyclododecylpropionic acid derivatives.

公开(公告)号：DE19911169A1

公开(公告)日：2000-09-14

申请号：DE19911169

申请日：1999-03-12

Applicant: BASF AG

Inventor： FISCHER ROLF ,  PINKOS ROLF

IPC: B01J23/00 ,  B01J23/06 ,  B01J23/40 ,  B01J23/72 ,  B01J23/888 ,  B01J35/10 ,  C07B61/00 ,  C07C45/65 ,  C07C49/597 ,  C07C49/603 ,  C07C49/607 ,  C07C49/587

Abstract: The invention relates to a method of producing cyclic, alpha , beta -unsaturated ketones of formula (II) by dehydrating cyclic ketones of formula (I), in which n is a number from 1 to 10 and which can be optionally substituted, at an elevated temperature in the presence of catalysts in the gas phase. Said method is characterized in that the reaction is carried out in the absence of oxygen or in the presence of less than 0.5 mol oxygen/mol of compound (I) at temperatures of 250 to 600 DEG C and with catalysts with a BET surface greater than 0.5 m /g.

公开(公告)号：DE19860489A1

公开(公告)日：2000-07-06

申请号：DE19860489

申请日：1998-12-28

Applicant: BASF AG

Inventor： ELLER KARSTEN ,  WAHL PETER ,  PINKOS ROLF

IPC: C07C29/141 ,  C07C31/02 ,  C07B41/02

Abstract: Hydrogenation of di-trio- and/or tetraaldehyde(s) (I) involves contacting (I) with a catalyst containing nickel, cobalt and/or copper, as compound and/or element, and hydrogen at gas pressure of 5-350 bar and temperature of 40-300 deg C. An Independent claim is also included for a diol, especially pentan-1,5-diol, produced as above, from a corresponding dialdehyde, especially glutaraldehyde.

公开(公告)号：AT192730T

公开(公告)日：2000-05-15

申请号：AT97905123

申请日：1997-02-28

Applicant: BASF AG

Inventor： BAUR KARL GERHARD ,  FISCHER ROLF ,  PINKOS ROLF ,  STEIN FRANK ,  BREITSCHEIDEL BORIS ,  RUST HARALD

IPC: C07D313/04 ,  C07C27/12 ,  C07C29/149 ,  C07C29/80 ,  C07C29/88 ,  C07C31/20 ,  C07C31/27 ,  C07C51/31 ,  C07D315/00

Abstract: PCT No. PCT/EP97/00990 Sec. 371 Date Aug. 28, 1998 Sec. 102(e) Date Aug. 28, 1998 PCT Filed Feb. 28, 1997 PCT Pub. No. WO97/31883 PCT Pub. Date Sep. 4, 19971,6-hexanediol and epsilon -caprolactone are prepared from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as a by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol using oxygen or oxygen-containing gases by water extraction of the reaction mixture, by esterifying and hydrogenating a substream to give hexanediol and cyclizing 6-hydroxycaproic esters to give caprolactone.

公开(公告)号：AU6084899A

公开(公告)日：2000-04-10

申请号：AU6084899

申请日：1999-09-16

Applicant: BASF AG

Inventor： FISCHER ROLF ,  LIANG SHELUE ,  PINKOS ROLF

IPC: C07D307/08

Abstract: In a process for preparing THF (tetrahydrofuran) by reaction of a 1,4-butanediol-containing reaction mixture over an acid catalyst, the reaction mixture comprises further alcohols different from 1,4-butanediol and is essentially free of water.

公开(公告)号：CA2329040A1

公开(公告)日：1999-11-04

申请号：CA2329040

申请日：1999-04-12

Applicant: BASF AG

Inventor： BREITSCHEIDEL BORIS ,  PINKOS ROLF ,  STEIN FRANK

IPC: B01J23/72 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20

Abstract: The invention relates to a method for producing hexanediol by hydrogenating adipic acid dialkyl esters or mixtures containing adipic acid dialkyl esters as an essential constituent and organic halogen compounds as impurities. According to said method, the adipic acid dialkyl esters or the mixtures containing adipic acid dialkyl esters are guided over copper catalysts at a temperature of 50 to 250 ~C and at a pressure of 1 to 100 bar before hydrogenation in order to remove the organic halogen compounds. Said copper catalysts contain 0.5 to 80 wt. % copper calculated as CuO and have a surface of 5 to 1500 m2/g, 0.05 to 1.5 cm3/g porosity and a copper surface of 0.1 to 20 m2/g.

公开(公告)号：DE19818248A1

公开(公告)日：1999-10-28

申请号：DE19818248

申请日：1998-04-23

Applicant: BASF AG

Inventor： FISCHER ROLF ,  KAIBEL GERD ,  PINKOS ROLF ,  RAHN RALF-THOMAS

IPC: C07C29/149 ,  C07C29/17 ,  C07C31/20 ,  C07C51/16 ,  C07C67/03 ,  C07C67/08 ,  C07C69/60 ,  C07D307/08 ,  C07D307/32 ,  C07D307/33 ,  C07D315/00 ,  C07C29/147 ,  C07C29/74 ,  C07B41/00

Abstract: Production of butan-1,4-diol (I) and optionally psi -butyrolactone (GBL) and tetrahydrofuran (THF) involves (i) oxidation of n-butane or benzene to a product stream containing maleic anhydride (II); (ii) absorption of (II) with a high-boiling inert solvent (III); (iii) esterification of the resultant liquid (IV) with a 1-5 carbon (C) alcohol (V) to a stream (VI) containing the corresponding diester and (III); and (iv) hydrogenation of (VI) to give a stream containing (I), optionally GBL and THF and (V), which is separated by distillation into valuable products and (V), (V) being recycled to the esterification zone. The novelty is that, before hydrogenation, (VI) is separated by vacuum distillation into the diester and (III), (III) is recycled to the absorption stage and the diester is hydrogenated in the liquid phase on a stationary bed catalyst. Production of butan-1,4-diol (I) and optionally psi -butyrolactone (GBL) and tetrahydrofuran (THF) involves; (i) oxidation of n-butane or benzene to a product stream containing maleic anhydride (II); (ii) absorption of (II) from the product stream with a high-boiling inert solvent (III) in an absorption stage, giving a liquid absorption discharge (IV); (iii) esterification of (IV) with a 1-5 carbon (C) esterification alcohol (V) in an esterification stage to an esterification discharge (VI) containing the corresponding diester and (III); and (iv) hydrogenation of (VI) to give a hydrogenation discharge containing (I), optionally GBL and THF and (V), which is separated by distillation into valuable products and (V), (V) being recycled to the esterification zone. The novelty is that, before hydrogenation, (VI) is separated by vacuum distillation into the diester and (III), (III) is recycled to the absorption stage and the diester is hydrogenated in the liquid phase on a stationary bed catalyst.