公开(公告)号：UA50739C2

公开(公告)日：2002-11-15

申请号：UA97126156

申请日：1996-05-07

Applicant: BASF AG

Inventor： FUCHS EBERHARD

IPC: C07D213/79 ,  C07B61/00 ,  C07C67/22 ,  C07C69/34 ,  C07C231/06 ,  C07C233/02 ,  C07D213/80 ,  C07D213/803 ,  C07D213/81 ,  C07D213/82 ,  C07D213/84

Abstract: Спосібодержанняпохіднихкарбоновоїкислотизагальноїформули (І): вякійозначають: Х - OR2 або NH2, R1 - алкілз 1-20 атомамивуглецю, гідроксиалкілз 1-20 атомамивуглецю, циклоалкілз 3-12 атомамивуглецю, алкілциклоалкілз 4-12 атомамивуглецю, циклоалкілалкілз 4-12 атомамивуглецю, алкілциклоалкілалкілз 5-20 атомамивуглецю, арил, аралкілз 7-20 атомамивуглецю, алкіларилз 7-20 атомамивуглецю, гетероаліфатичнеабогетероароматичнекільцез 5-8 атомамивуглецю, R2 - алкілз 1-20 атомамивуглецю, ізнітрилівкарбоновоїкислотизагальноїформули (II): вякій R1 маєвказанівищезначення, іспиртівзагальноїформули (III): вякій R2 маєвказанівищезначення, притемпературівід 50 до 300°Сі тискувід 0,1 до 350 барв присутностігетерогенногокаталізатора, прицьомуреакціюпроводятьу рідкійфазі.

公开(公告)号：DE10138101A1

公开(公告)日：2002-11-14

申请号：DE10138101

申请日：2001-08-03

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MARTAN HANS ,  NESTLER GERHARD ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07C51/215 ,  C07C51/25 ,  C07C51/44 ,  C07C51/48 ,  C07C51/487 ,  C07C57/07

Abstract: Process for the separation of acrylic acid from the reaction product of the catalytic gas phase oxidation of propane, propylene and/or acrolein comprises recovery of crude acrylic acid, treatment with an aldehyde trap, distillation and thin film evaporation of the residue. Process for the separation of acrylic acid from the reaction gases from the catalytic gas phase oxidation of propane, propylene and/or acrolein comprises: (a) recovery of crude acrylic acid in which either (a1) acrylic acid is absorbed in an absorbent liquid and crude acrylic acid isolated from the absorbent liquid or (a2) a crude acrylic acid fraction is separated from the reaction gases by fractional condensation with an optional purification step by crystallization; (b) the crude acrylic acid is treated with an aldehyde trap; (c) the treated crude acrylic acid is thermally treated in a distillation column to separate a first amount of an acrylic acid-containing vapor and a first residue such that the first residue comprises at least 8 wt.% of the crude acrylic acid; (d) the first residue is fed to a film evaporator and separated to form a second amount of an acrylic acid-containing vapor and a second residue; and (e) the first and second acrylic acid-containing vapors are combined and condensed to form pure acrylic acid and the second residue is discarded.

公开(公告)号：ES2172307T3

公开(公告)日：2002-09-16

申请号：ES99907560

申请日：1999-02-22

Applicant: BASF AG

Inventor： MOHRSCHLADT RALF ,  HILDEBRANDT VOLKER ,  PIPPER GUNTER ,  FUCHS EBERHARD

IPC: C08G69/18 ,  C08G69/20

Abstract: In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.

公开(公告)号：DE59902183D1

公开(公告)日：2002-09-05

申请号：DE59902183

申请日：1999-02-02

Applicant: BASF AG

Inventor： MOHRSCHLADT RALF ,  HILDEBRANDT VOLKER ,  FUCHS EBERHARD

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16 ,  C08G69/28 ,  C08K3/00 ,  C08K3/011

Abstract: A continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 35x106 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide to obtain a reaction mixture,(2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, in the presence of a Brönsted acid catalyst as in (1), the temperature and pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 370° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.

公开(公告)号：DE59804919D1

公开(公告)日：2002-08-29

申请号：DE59804919

申请日：1998-08-21

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  FLICK KLEMENS

IPC: B01J21/06 ,  B01J37/06 ,  C07D201/08 ,  C07D223/10

Abstract: Cyclic lactams are prepared by reacting aminocarbonitriles with water in the liquid phase in a fixed bed reactor in the presence of a catalyst which comprises a catalytically active oxide, which has no soluble constituents under the reaction conditions and which consists of shaped articles obtainable by shaping the oxide into shaped articles and, before or after said shaping, treating the oxide with from 0.1 to 30% by weight, based on the oxide, of an acid in which the oxide is sparingly soluble.

公开(公告)号：DE59410076D1

公开(公告)日：2002-04-11

申请号：DE59410076

申请日：1994-11-15

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM

IPC: C07D201/08 ,  C07D223/10

Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

公开(公告)号：DE59706018D1

公开(公告)日：2002-02-21

申请号：DE59706018

申请日：1997-07-07

Applicant: BASF AG

Inventor： RITZ JOSEF ,  ACHHAMMER GUENTHER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  VOIT GUIDO

IPC: C07C231/06 ,  C07C237/06 ,  C07C253/00 ,  C07C255/24 ,  C07D201/08 ,  C07D201/12 ,  C07D201/16

Abstract: A process for preparing caprolactam by cyclization of 6-aminocapronitrile in the presence of water at elevated temperature and in the presence or absence of a catalyst and a solvent, comprises a) removing from the cyclization reaction effluent ("reaction effluent I") caprolactam and all components boiling higher than caprolactam ("high boilers"), b) treating the high boilers of stage a) with phosphoric acid and/or polyphosphoric acid at from 200 to 350 DEG C. to obtain a reaction effluent II, and c) removing caprolactam formed and any 6-aminocapronitrile from reaction effluent II of stage b) to obtain separation from unconverted high boilers and acid used.

公开(公告)号：ES2164352T3

公开(公告)日：2002-02-16

申请号：ES97929183

申请日：1997-06-13

Applicant: BASF AG

Inventor： FUCHS EBERHARD

IPC: C07D201/08 ,  C07D201/16 ,  C07D223/10

Abstract: PCT No. PCT/EP98/03098 Sec. 371 Date Dec. 9, 1998 Sec. 102(e) Date Dec. 9, 1998 PCT Filed Jun. 13, 1997 PCT Pub. No. WO97/47596 PCT Pub. Date Dec. 18, 1997Crude caprolactam is purified by reaction with a complex hydride of boron or of aluminum.

公开(公告)号：BG63387B1

公开(公告)日：2001-12-31

申请号：BG10167297

申请日：1997-06-25

Applicant: BASF AG

Inventor： RITZ JOSEF ,  FISCHER ROLF ,  SCHNURR WERNER ,  ACHHAMMER GUENTHER ,  LUYKEN HERMANN ,  FUCHS EBERHARD

IPC: C07D201/08 ,  C07B63/02 ,  C07D201/16

Abstract: The invention relates to a method where the raw caprolactam is purified by hydrogenation after which it is treated in acidic medium and is distilled in alkaline medium, when: (a) 6-aminiocapronitrile is converted in raw caprolactam by reaction with water, (b) the high-boiling and low-boiling components are separated from the raw caprolactam from stage (a), (c) the raw caprilactam of stage (b) is treated with hydrogen at temperatures ranging from 50 to 150©C and from 1.5 to 250 bar in the presence of hydrogenation catalyst and optionally of solvent, thus producing mixtire A, (d1) mixture A in a solvent is passed at 30 to 80©C and from 1 to 5 bar through ion-exchange resin having and acidic groups, thus producing mixture B1, or (d2) mixture A is distilled in the presence of sulphuric acid and any amount of solvent is eliminated before the addition of the sulphuric acid, thus producing mixture B2, and mixture B1 or B2 is distilled in the presence of a base, thus producing pure caprolactam. 2 claims

公开(公告)号：HU220356B

公开(公告)日：2001-12-28

申请号：HU9801131

申请日：1996-05-07

Applicant: BASF AG

Inventor： FLICK KLEMENS ,  FUCHS EBERHARD ,  WITZEL TOM

IPC: C07D201/08

Abstract: Production of cyclic lactams by the reaction of amino carboxylic acid nitriles with water, performed in the liquid phase in the presence of heterogeneous catalysts based on titanium dioxide with a rutile content in the range from 0.1 to 95 wt.% and an anatase content in the range from 99.9 to 5 wt.% in relation to the total titanium dioxide content.