公开(公告)号：AT267812T

公开(公告)日：2004-06-15

申请号：AT96924848

申请日：1996-07-02

Applicant: BASF AG

Inventor： KOENIG HARTMANN ,  GOETZ NORBERT ,  KLEIN ULRICH ,  ELLER KARSTEN

IPC: C07D231/20 ,  C07D231/22 ,  C07D401/04

Abstract: PCT No. PCT/EP96/02891 Sec. 371 Date Jan. 8, 1998 Sec. 102(e) Date Jan. 8, 1998 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/03969 PCT Pub. Date Feb. 6, 1997N-substituted 3-hydroxypyrazoles of the formula I where R1 is unsubstituted or substituted alkyl, aryl or heteroaryl and R2, R3 is hydrogen, cyano, halogen or unsubstituted or substituted alkyl, aryl or heteroaryl, are prepared by oxidation of a corresponding pyrazolidin-3-one with atmospheric oxygen in the presence of a metal salt in an essentially pH-neutral medium.

公开(公告)号：AT249883T

公开(公告)日：2003-10-15

申请号：AT00903595

申请日：2000-01-20

Applicant: BASF AG

Inventor： MENGER VOLKMAR ,  ELLER KARSTEN ,  MEIER ANTON ,  HESSE MICHAEL

IPC: B01J21/20 ,  B01J29/90 ,  B01J38/06 ,  C08G65/20 ,  C08G65/26

Abstract: A process for working up at least partially deactivated polymerization catalysts for the polymerization or copolymerization of THF which are contaminated with the products of the polymerization or copolymerization of THF comprises(a) in a first step, cleaning the polymerization catalyst by treatment with steam at from 80 to 250° C. and a pressure of from 0.5 to 40 bar and, preferably,(b) in a second step, regenerating the clean polymerization catalyst.

公开(公告)号：DE59905640D1

公开(公告)日：2003-06-26

申请号：DE59905640

申请日：1999-01-15

Applicant: BASF AG

Inventor： ELLER KARSTEN ,  RUETTER HEINZ ,  HESSE MICHAEL ,  BECKER RAINER

IPC: B01J21/16 ,  C08G61/12 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26

Abstract: In a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof comprises polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer over an acid-activated calcium montmorillonite as catalyst, the calcium montmorillonite has a BET surface area of at least 300 m2/g, an acidity of at least 0.02 mmol/g at pKa

公开(公告)号：DE59807875D1

公开(公告)日：2003-05-15

申请号：DE59807875

申请日：1998-05-06

Applicant: BASF AG

Inventor： ELLER KARSTEN ,  STEIN FRANK ,  SIGWART CHRISTOPH ,  BECKER RAINER ,  PLITZKO KLAUS-DIETER ,  FISCHER ROLF ,  MUELLER ULRICH

IPC: C08G65/10 ,  B01J29/04 ,  B01J29/89 ,  C08G59/68 ,  C08G65/06 ,  C08G65/20 ,  C08G65/26

Abstract: A process for polymerizing cyclic ethers over a heterogeneous catalyst comprises using a heterogeneous catalyst comprising one or more pillared interlayered clays (PILCs).

公开(公告)号：SK282171B6

公开(公告)日：2001-11-06

申请号：SK35298

申请日：1996-12-04

Applicant: BASF AG

Inventor： ELLER KARSTEN ,  KUMMER RUDOLF ,  STOPS PETER

IPC: B01J29/70 ,  C07B61/00 ,  C07D295/02 ,  C07C209/60 ,  C07C211/07 ,  C07D207/323

Abstract: PCT No. PCT/EP96/05406 Sec. 371 Date Jan. 29, 1998 Sec. 102(e) Date Jan. 29, 1998 PCT Filed Dec. 4, 1996 PCT Pub. No. WO97/21661 PCT Pub. Date Jun. 19, 1997A process for preparing amines of the general formula I (I) where R1, R2, R3, R4, R5 and R6 are each hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C2-C20-alkynyl, C3-C20-cycloalkyl, C4-C20-alkylcycloalkyl, C4-C20-cycloalkylalkyl, aryl, C7-C20-alkylaryl or C7-C20-aralkyl, R1 and R2 are together a saturated or unsaturated C3-C9-alkylene dichain, and R3 or R5 are each C21-C200-alkyl or C21-C200-alkenyl or together a C2-C12-alkylene dichain by reacting olefins of the general formula II as defined above, with ammonia or primary or secondary amines of the general formula III , at temperatures from 200 DEG to 350 DEG C. and pressures from 100 to 300 bar in the presence of a heterogeneous catalyst, comprises using a heterogeneous catalyst comprising zeolites of the type SSZ-26, SSZ-33, CIT-1 or mixtures thereof.

公开(公告)号：ES2158701T3

公开(公告)日：2001-09-01

申请号：ES98951309

申请日：1998-08-21

Applicant: BASF AG

Inventor： ELLER KARSTEN ,  HESSE MICHAEL ,  BECKER RAINER ,  HOHN ARTHUR ,  RUTTER HEINZ

IPC: B01J21/16 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26

Abstract: A process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters of these polymers comprises polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer over a heterogeneous catalyst comprising hectorite.

公开(公告)号：SK281659B6

公开(公告)日：2001-06-11

申请号：SK2598

申请日：1996-07-02

Applicant: BASF AG

Inventor： KONIG HARTMANN ,  GOTZ NORBERT ,  KLEIN ULRICH ,  ELLER KARSTEN

IPC: C07D231/20 ,  C07D231/22 ,  C07D401/04

Abstract: PCT No. PCT/EP96/02891 Sec. 371 Date Jan. 8, 1998 Sec. 102(e) Date Jan. 8, 1998 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/03969 PCT Pub. Date Feb. 6, 1997N-substituted 3-hydroxypyrazoles of the formula I where R1 is unsubstituted or substituted alkyl, aryl or heteroaryl and R2, R3 is hydrogen, cyano, halogen or unsubstituted or substituted alkyl, aryl or heteroaryl, are prepared by oxidation of a corresponding pyrazolidin-3-one with atmospheric oxygen in the presence of a metal salt in an essentially pH-neutral medium.

公开(公告)号：CZ288130B6

公开(公告)日：2001-04-11

申请号：CZ24498

申请日：1996-07-26

Applicant: BASF AG

Inventor： SIGWART CHRISTOPH ,  FISCHER ROLF ,  ELLER KARSTEN ,  BECKER RAINER ,  PLITZKO KLAUS-DIETER ,  HEILEN GERD

IPC: C08G18/48 ,  C08G18/67 ,  C08G63/66 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28 ,  C08G69/40

Abstract: In the present invention there is disclosed a process for preparing copolymers of tetrahydrofuran and but-2-ine-1,4-diol by catalytic polymerization of tetrahydrofuran: The invented preparation process is characterized by polymerization on a heterogeneous acidic polymerization catalyst having acidity of acid centers pKia less than + 2 at concentration of at least 0.005 mmole per one gram of the catalyst, in the presence of but-2-ine-1,4-diol, being present particularly in an amount ranging from 0.04 to 17 molar percent based on tetrahydrofuran. In this preparation process there can be used a series of polymerization catalyst. It is preferred when the catalyst selected contains a molybdenum or tungsten compound. Preferably the catalyst can be doped with a sulfur or phosphorus compound, too.

公开(公告)号：PL179471B1

公开(公告)日：2000-09-29

申请号：PL31930095

申请日：1995-09-21

Applicant: BASF AG

Inventor： BECKER RAINER ,  SIGWART CHRISTOPH ,  HESSE MICHAEL ,  FISCHER ROLF ,  ELLER KARSTEN ,  HEILEN GERD ,  PLITZKO KLAUS-DIETER

IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

Abstract: PCT No. PCT/EP95/03651 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Sep. 21, 1995 PCT Pub. No. WO96/09335 PCT Pub. Date Mar. 28, 1996A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters of C1-C10 monocarboxylic acids by the polymerization of tetrahydrofuran over a heterogeneous catalyst in the presence of one of the telogens water, 1,4-butanediol or polytetrahydrofuran having a molecular weight of from 200 to 700 dalton or a C1-C10 monocarboxylic acid or mixtures of these telogens, wherein a supported catalyst is used as catalyst, which contains a catalytically active amount of an oxygen-containing tungsten or molybdenum compound or mixtures of these compounds on an oxidic support material and which was calcined at temperatures ranging from 500 DEG to 1000 DEG C. following the application of the precursor compounds of said oxygen-containing molybdenum and/or tungsten compounds to the support material precursor.

公开(公告)号：ES2147027T3

公开(公告)日：2000-08-16

申请号：ES97943883

申请日：1997-09-23

Applicant: BASF AG

Inventor： SIGWART CHRISTOPH ,  ELLER KARSTEN ,  BECKER RAINER ,  PLITZKO KLAUS-DIETER ,  FISCHER ROLF ,  STEIN FRANK

IPC: C08G65/10 ,  B01J23/24 ,  C08G18/48 ,  C08G65/20 ,  C08G65/28

Abstract: PCT No. PCT/EP97/05204 Sec. 371 Date Apr. 1, 1999 Sec. 102(e) Date Apr. 1, 1999 PCT Filed Sep. 23, 1997 PCT Pub. No. WO98/15589 PCT Pub. Date Apr. 16, 1998Polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butyne-1,4-diol, diesters of these polymers with C2-C20-monocarboxylic acids or monoesters of these polymers with C1-C10-monocarboxylic acids are prepared by polymerization of tetrahydrofuran in the presence of one of the telogens water, 1,4-butanediol, 2-butyne-1,4-diol, polytetrahydrofuran having a molecular weight of from 200 to 700 Dalton, a C1-C10-monocarboxylic acid or an anhydride of a C2-C20-monocarboxylic acid or a mixture of these telogens over a heterogeneous supported catalyst which comprises a catalytically active amount of an oxygen-containing molybdenum and/or tungsten compound on an oxidic support material and which has been calcined at from 5OO DEG C. to 1OOO DEG C. after application of the precursor compounds of the oxygen-containing molybdenum and/or tungsten compounds onto the support material precursor, wherein the catalyst is activated by treatment with a reducing agent before it is used as a polymerization catalyst.