中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.02 seconds)

    METHOD FOR THE SIMULTANEOUS PRODUCTION OF TETRAHYDROFURANS AND PYRROLIDONES
    1.
    发明专利
    METHOD FOR THE SIMULTANEOUS PRODUCTION OF TETRAHYDROFURANS AND PYRROLIDONES 未知

    公开(公告)号：MY139906A

    公开(公告)日：2009-11-30

    申请号：MYPI20030658

    申请日：2003-02-25

    Applicant: BASF AG

    Inventor： FISCHER ROLF-HARTMUTH DR ,  SCH MARKUS R XD DR ,  BOTTKE NILS DR ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HESSE MICHAEL DR ,  BORCHERT HOLGER DR ,  SCHLITTER STEPHAN DR

    IPC: C07D207/26 ,  B01J23/72 ,  B01J23/80 ,  C07B61/00 ,  C07D207/267 ,  C07D307/08

    Abstract: A PROCESS FOR COPRODUCING ALKYL-SUBSTITUTED OR UNSUBSTITUTED THF AND PYRROLIDONES BY CATALYTICALLY HYDROGENATION C4- DICARBOXYLIC ACIDS AND/OR DERIVATIVES THEREOF IN THE GAS PHASE IN THE PRESENCE OF COPPER CATALYSTS AND THE REACTING GBL WITH AMMONIA OR PRIMARY AMINES TO GIVE PYRROLIDONES COMPRISES A) HYDROGENATING C4-DICARBOXYLIC ACIDS AND/OR THE DERIVATIVES THEREOF IN THE GAS PHASE AT 200 TO 300°C, 10 TO 10000 KPA (0.1 TO 100 BAR), CATALYST HOURLY SPACE VELOCITIES OF FROM 0.01 TO 1 KG OF REACTANT/L OF CATALYST* HOUR AND REACTANT/HYDROGEN MATERIAL/HYDROGEN MOLAR RATIOS OF 20 TO 800 IN THE PRESENCE OF CATALYSTS COMPRISING COPPER, ALUMINIUM AND/OR ZINC TO GIVE MIXTURES OF THF AND GBL, B) SEPARATING THE HYDROGENATION EFFLUENT OBTAINED BY DISTILLATION INTO A THF/WATER MIXTURE AS TOP PRODUCT AND A GBL-CONTAINING BOTTOM PRODUCT, C) SEPARATING THE THF/WATER MIXTURE FROM STEP B) IN A DISTILLATION FACILITY CONSISTING OF THREE COLUMNS (1,2,3) BY WITHDRAWING WATER FROM THE BOTTOM OF THE FIRST COLUMN (1), RECYCLING WATER-CONTAINING THF FROM THE SECOND TO THE FIRST COLUMN, PASSING A SIDE STREAM FROM THE FIRST COLUMN (1) INTO THE SECOND COLUMN (2), RECYCLING THE BOTTOM PRODUCT OF THE THIRD COLUMN (3) INTO THE FIRST COLUMN (1) AND WITHDRAWING A DISTILLATE AT THE TOP OF THE FIRST COLUMN (1), WHEREIN A SIDE STREAM OF THE SECOND COLUMN (2) IS PASSED INTO THE THIRD COLUMN (3) AND THE PURE THF IS OBTAINED AS THE TOP PRODUCT OF THE THIRD COLUMN (3), D) RECOVERING GBL FROM THE GBL-CONTAINING BOTTOM PRODUCT FROM STEP B) BY DISTILLATION AND E) REACTING THE GBL OBTAINED WITH AMMONIA OR AMINES TO GIVE THE CORRESPONDING PYRROLIDONES.

    PURIFICATION OF CAPROLACTAM
    4.
    发明专利
    PURIFICATION OF CAPROLACTAM 未知

    公开(公告)号：MY134410A

    公开(公告)日：2007-12-31

    申请号：MYPI20034293

    申请日：2003-11-10

    Applicant: BASF AG

    Inventor： LUYKEN HERMANN ,  ANSMANN ANDREAS DR ,  BENISCH CHRISTOPH DR ,  BASLER PETER DR ,  FISCHER ROLF-HARTMUTH DR ,  MAIXNER STEFAN DR ,  MELDER JOHANN-PETER DR

    IPC: C07D201/16 ,  C07D201/08

    Abstract: A PROCESS FOR PURIFYING CRUDE CAPROLACTAM WHICH HAS BEEN OBTAINED BY 1) CONVERTING A MIXTURE (I) COMPRISING 6-AMINOCAPRONITRILE AND WATER TO A MIXTURE (II) COMPRISING CAPROLACTAM,AMMONIA, WATER, HIGH BOILERS AND LOW BOILERS IN THE PRESENCE OF A CATALYST, THEN2) REMOVING AMMONIA FROM MIXTURE (II) TO OBTAIN A MIXTURE (III) COMPRISING CAPROLACTAM, WATER,HIGH BOILERS AND LOW BOILERS, THEN3) COMPLETELY OR PARTLY REMOVING WATER FROM MIXTURE (III) TO OBTAIN CRUDE CAPROLACTAM (IV) COMPRISING CAPROLACTAM, HIGH BOILERS AND LOW BOILERS, WHICH COMPRISES A) FEEDING THE CRUDE CAPROLACTAM AND AN INORGANIC ACID WHICH HAS A BOILING POINT ABOVE THE BOILING POINT OF CAPROLACTAM UNDER THE DISTILLATION CONDITIONS OF THE FOLLOWING STEPS B) TO H) TO A FIRST DISTILLATION APPARATUS C1,@ B) DISTILLING THE CRUDE CAPROLACTAM AND THE INORGANIC ACID IN THE FIRST DISTILLATION APPARATUS C1, AND REMOVING A FIRST SUBSTREAM IN THE BOTTOM REGION AND A SECOND SUBSTREAM IN THE TOP REGION OF THE DISTILLATION APPARATUS C1,@ C) FEEDING THE SECOND SUBSTREAM FROM STEP B) TO A SECOND DISTILLATION APPARATUS C2,@ D) DISTILLING THE SECOND SUBSTREAM FROM STEP B) IN THE SECOND DISTILLATION APPARATUS C2, AND REMOVING A FIRST SUBSTREAM IN THE BOTTOM REGION AND A SECOND SUBSTREAM IN THE TOP REGION OF THE DISTILLATION APPARATUS C2,@ E) FEEDING THE FIRST SUBSTREAM FROM STEP D) TO A THIRD DISTILLATION APPARATUS C3,@ F) DISTILLING THE FIRST SUBSTREAM FROM STEP D) TO A THIRD DISTILLATION APPARATUS C3, AND REMOVING A FIRST SUBSTREAM IN THE BOTTOM REGION AND PURIFIED CAPROLACTAM IN THE TOP REGION OF DISTILLATION APPARATUS C3, AND

    Continuous preparation of polyamides from aminonitriles
    7.
    发明专利
    Continuous preparation of polyamides from aminonitriles 未知

    公开(公告)号：CZ200391A3

    公开(公告)日：2003-06-18

    申请号：CZ200391

    申请日：2001-07-10

    Applicant: BASF AG

    Inventor： BASSLER PETER DR ,  WINTERLING HELMUT DR ,  FISCHER ROLF-HARTMUTH DR ,  LOTH WOLFGANG DR

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16

    Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water in the presence of an organic liquid diluent at from 90 to 400° C. and from 0.1 to 35x10 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 from 150 to 400° C. and a pressure which is lower than the pressure in stage 1 in the presence of 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, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid phase or a first solid phase or a mixture of first solid and first liquid phases and so that the first gas phase is separated from the first liquid phase or first solid phase or from the mixture of first liquid and first solid phases, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phases with a gaseous or liquid phase comprising water at from 150 to 370° C. and from 0.1 to 30x10 Pa, to obtain a product mixture.

    CATALYST AND METHOD FOR THE PRODUCTION OF POLYTETRAHYDROFURAN
    9.
    发明专利
    CATALYST AND METHOD FOR THE PRODUCTION OF POLYTETRAHYDROFURAN 未知

    公开(公告)号：MY137357A

    公开(公告)日：2009-01-30

    申请号：MYPI20021995

    申请日：2002-05-30

    Applicant: BASF AG

    Inventor： SCHLITTER STEPHAN DR ,  SIGWART CHRISTOPH DR ,  DORFLINGER WALTER ,  HESSE MICHAEL DR ,  FISCHER ROLF-HARTMUTH DR

    IPC: B01J21/16 ,  B01J35/10 ,  C08G65/20 ,  C08G65/26

    Abstract: POLYTETRAHYDROFURAN, POLYTETRAHYDROFURAN COPOLYMERS, DIESTERS OR MONOESTERS OF THESE POLYMERS ARE PREPARED BY POLYMERIZATION OF TETRAHYDROFURAN IN THE PRESENCE OF AT LEAST ONE TELOGEN AND/OR COMONOMER, WHICH IS IN THE FORM OF SHAPED CATALYST BODIES OR CATALYST PARTICLES HAVING A VOLUME OF THE INDIVIDUAL SHAPE OF THE BODY OR PARTICLE OF AT LEAST 0.05 mm3, PREFERABLY AT LEAST 0.2 mm3, IN PARTICULAR 1 mm3, AND HAS AT LEAST ONE OF THE FEATURES a) AND b) : a)A PORE RADIUS DISTRIBUTION HAVING AT LEAST ONE MAXIMUM IN THE PORE RADIUS RANGE FROM 100 TO 5000 Å,b)A PORE VOLUME OF CATALYST PRES HAVING RADII OF 200 - 3000 Å OF GREATER THAN 0.05 cm3/g AND/OR A PORE VOLUME OF PORES HAVING RADII OF 200 - 5000 Å OF GREATER THAN 0.075 cm3/g AND/OR A PORE VOLUME OF PORES HAVING RADII OF > 200 Å OF GREATER THAN 0.1 cm3/g.

Patent Agency Ranking