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    Production of polyamides by reactive distillation
    11.
    发明专利
    Production of polyamides by reactive distillation 未知

    公开(公告)号：AU2273599A

    公开(公告)日：1999-09-15

    申请号：AU2273599

    申请日：1998-12-16

    Applicant: BASF AG

    Inventor： LEEMANN MARTIN ,  HILDEBRANDT VOLKER ,  THIELE HEINO ,  ESPIG STEFAN

    IPC: C08G69/00 ,  C08G69/04

    Abstract: The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a reactive distillation, wherein the reaction product (P) is discharged from the bottom of the reactive distillation apparatus, and ammonia (N) which is produced and, where appropriate, other low molecular weight compounds which are produced, and water, are taken off overhead.

    PROCESS AND DEVICE FOR THE PREPARATION OF A REACTION MIXTURE OF AT LEAST TWO COMPONENTS FOR THE PRODUCTION OF FOAMS
    13.
    发明专利
    PROCESS AND DEVICE FOR THE PREPARATION OF A REACTION MIXTURE OF AT LEAST TWO COMPONENTS FOR THE PRODUCTION OF FOAMS 未知

    公开(公告)号：CA1224310A

    公开(公告)日：1987-07-21

    申请号：CA453590

    申请日：1984-05-04

    Applicant: BASF AG

    Inventor： THIELE HEINO ,  WEBER WERNER ,  TAUBENMANN PETER

    IPC: B29B7/76 ,  B29C67/22

    Abstract: PROCESS AND DEVICE FOR THE PREPARATION OF A REACTION MIXTURE OF AT LEAST TWO COMPONENTS FOR THE PRODUCTION OF FOAMS In order to prepare a reaction mixture which forms a foam, at least one of the components located in separate supply tanks (1) with an agitator (6) is charged with gas before being mixed into the other component. In order to do this, the component is circulated in a separate circuit by means of a delivery unit (10) which adds the gas in the suction and/or pressure area of the delivery unit and compresses the gas-component mixture. Directly after the compression zone (l2) the pressure in the gas-component mixture is again released by means of a throttle element (11), whereby large amounts of gas can be homogeneously dispersed in the liquid component.

    14.
    发明专利
    未知

    公开(公告)号：DE59803393D1

    公开(公告)日：2002-04-18

    申请号：DE59803393

    申请日：1998-12-16

    Applicant: BASF AG

    Inventor： LEEMANN MARTIN ,  HILDEBRANDT VOLKER ,  THIELE HEINO ,  ESPIG STEFAN

    IPC: C08G69/00 ,  C08G69/04

    Abstract: The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a reactive distillation, wherein the reaction product (P) is discharged from the bottom of the reactive distillation apparatus, and ammonia (N) which is produced and, where appropriate, other low molecular weight compounds which are produced, and water, are taken off overhead.

    15.
    发明专利
    未知

    公开(公告)号：TR200002511T2

    公开(公告)日：2000-12-21

    申请号：TR200002511

    申请日：1998-12-16

    Applicant: BASF AG

    Inventor： LEEMANN MARTIN ,  HILDEBRANDT VOLKER ,  THIELE HEINO ,  ESPIG STEFAN

    IPC: C08G69/00 ,  C08G69/04

    Abstract: The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a reactive distillation, wherein the reaction product (P) is discharged from the bottom of the reactive distillation apparatus, and ammonia (N) which is produced and, where appropriate, other low molecular weight compounds which are produced, and water, are taken off overhead.

    16.
    发明专利
    未知

    公开(公告)号：BR9815693A

    公开(公告)日：2000-11-14

    申请号：BR9815693

    申请日：1998-12-16

    Applicant: BASF AG

    Inventor： LEEMANN MARTIN ,  HILDEBRANDT VOLKER ,  THIELE HEINO ,  ESPIG STEFAN

    IPC: C08G69/00 ,  C08G69/04

    Abstract: The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a reactive distillation, wherein the reaction product (P) is discharged from the bottom of the reactive distillation apparatus, and ammonia (N) which is produced and, where appropriate, other low molecular weight compounds which are produced, and water, are taken off overhead.

    17.
    发明专利
    未知

    公开(公告)号：DE19808407A1

    公开(公告)日：1999-09-09

    申请号：DE19808407

    申请日：1998-02-27

    Applicant: BASF AG

    Inventor： LEEMANN MARTIN ,  HILDEBRANDT VOLKER ,  THIELE HEINO ,  ESPIG STEFAN

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

    Abstract: The invention relates to a method for producing polyamides, their oligomers or their mixtures, possibly with other reaction products, by reacting aminonitriles (A) and possibly other polyamide-forming monomers and/or oligomers with water (D) by reactive distillation. The reaction product (P) is extracted from the column bottom in the reactive distillation device and resulting ammonia (N), as well as possibly other resulting compounds having a low molecular weight, and water are withdrawn at the head of the column.

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