公开(公告)号：AT279414T

公开(公告)日：2004-10-15

申请号：AT01129790

申请日：2001-12-14

Applicant: BASF AG

Inventor： LANG ORTMUND ,  RUMPF BERND DR ,  FRAUENKRON MATTHIAS DR ,  FUNHOFF DIRK DR ,  MANDERBACH THOMAS DR ,  STEIN BERND DR

IPC: C07D487/08 ,  C07D241/00

Abstract: The invention relates to the preparation of pure triethylenediamine (TEDA) by evaporating TEDA from the mixture comprising a solvent or diluent, where the solvent or diluent has a boiling point at atmospheric pressure in the range from 175 to 250° C., passing the vapor-form TEDA into a liquid solvent, and subsequently crystallizing the TEDA out of the resultant solution.

公开(公告)号：DE10122502A1

公开(公告)日：2002-11-14

申请号：DE10122502

申请日：2001-05-10

Applicant: BASF AG

Inventor： LANG ORTMUND ,  RUMPF BERND ,  FRAUENKRON MATTHIAS ,  FUNHOFF DIRK ,  MANDERBACH THOMAS ,  STEIN BERND

IPC: C07D487/04 ,  C07D487/08 ,  C07C209/86 ,  C07C211/10

Abstract: Purification of triethylene diamine (TEDA) comprises crystallization and extraction of the resulting mother liquor with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process. A process for the purification of triethylene diamine (TEDA) by evaporation and feeding the TEDA vapor to a liquid solvent followed by crystallization is characterized in that following crystallization of the TEDA the resulting mother liquor is extracted with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process.

公开(公告)号：DE10100943A1

公开(公告)日：2002-07-11

申请号：DE10100943

申请日：2001-01-10

Applicant: BASF AG

Inventor： LANG ORTMUND ,  RUMPF BERND ,  FRAUENKRON MATTHIAS ,  FUNHOFF DIRK ,  MANDERBACH THOMAS ,  STEIN BERND

IPC: C07D487/08

Abstract: A process for the production of a solution of pure triethylenediamine (TEDA) comprises evaporation of TEDA from a mixture comprising a solvent or a diluent, whereby the solvent or diluent has a boiling point of 175-250 deg C at normal pressure, and the TEDA vapor is fed into a liquid solvent.

公开(公告)号：DE50000116D1

公开(公告)日：2002-04-04

申请号：DE50000116

申请日：2000-07-06

Applicant: BASF AG

Inventor： RIECHERS DR ,  HOEHN DR ,  SIMON DR ,  LANG ORTMUND ,  SCHOENMAKERS DR ,  RAULS DR ,  CLAERBOUT KOEN

IPC: C07D471/08 ,  C07D487/08

Abstract: Preparation of a solution of pure triethylenediamine (TEDA) comprises vaporizing TEDA and passing the TEDA vapor into a liquid solvent. An Independent claim is also included for the preparation of pure TEDA by preparing the solution as above and crystallizing TEDA from this solution.

公开(公告)号：DE19962455A1

公开(公告)日：2001-06-28

申请号：DE19962455

申请日：1999-12-22

Applicant: BASF AG

Inventor： RIECHERS HARTMUT ,  HOEHN ARTHUR ,  SIMON JOACHIM ,  LANG ORTMUND ,  SCHOENMAKERS HARTMUT ,  RAULS MATTHIAS ,  CLAERBOUT KOEN

IPC: C07D487/08

Abstract: Preparation of a solution of pure triethylenediamine (TEDA) comprises vaporizing TEDA and passing the TEDA vapor into a liquid solvent. An Independent claim is also included for the preparation of pure TEDA by preparing the solution as above and crystallizing TEDA from this solution.

公开(公告)号：DE102005038376A1

公开(公告)日：2007-02-15

申请号：DE102005038376

申请日：2005-08-13

Applicant: BASF AG

Inventor： JOEDECKE MICHAEL ,  LANG ORTMUND ,  CAUWENBERGE GUNTHER VAN ,  FRAUENKRON MATTHIAS

IPC: C07D295/023 ,  B01D3/14 ,  C07C211/10

Abstract: Continuous distillative separation of piperazine from ethylenediamine-piperazine mixture comprises subjecting the piperazine mixture into a cyclic motion, introducing the piperazine mixture into an evaporator unit at 160-170[deg]C, recycling the piperazine mixture into a distillation column and removing the piperazine from the sump of the distillation column after a retention time of approximately 30-60 minutes, where the ethylene diamine is discharged at the upper portion of the distillation column.

公开(公告)号：DE102004024274A1

公开(公告)日：2005-12-01

申请号：DE102004024274

申请日：2004-05-15

Applicant: BASF AG

Inventor： LANG ORTMUND ,  FRAUENKRON MATTHIAS

IPC: C07D487/08

Abstract: Process for preparing a solution of pure triethylenediamine (TEDA), in which TEDA is vaporized, the gaseous TEDA is passed into a liquid solvent 1 (quench) and the TEDA is crystallized from the resulting solution and separated off (solid-liquid separation), wherein the crystalline TEDA obtained is dissolved in a solvent 2 and a stripping gas is passed through the resulting solution (stripping).

公开(公告)号：DE50203442D1

公开(公告)日：2005-07-28

申请号：DE50203442

申请日：2002-05-10

Applicant: BASF AG

Inventor： LANG ORTMUND ,  RUMPF DR ,  FRAUENKRON DR ,  FUNHOFF DR ,  MANDERBACH DR ,  STEIN DR

IPC: C07D487/04 ,  C07D487/08

Abstract: Purification of triethylene diamine (TEDA) comprises crystallization and extraction of the resulting mother liquor with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process. A process for the purification of triethylene diamine (TEDA) by evaporation and feeding the TEDA vapor to a liquid solvent followed by crystallization is characterized in that following crystallization of the TEDA the resulting mother liquor is extracted with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process.

公开(公告)号：ES2228740T3

公开(公告)日：2005-04-16

申请号：ES01129790

申请日：2001-12-14

Applicant: BASF AG

Inventor： LANG ORTMUND ,  RUMPF BERND DR ,  FRAUENKRON MATTHIAS DR ,  FUNHOFF DIRK DR ,  MANDERBACH THOMAS DR ,  STEIN BERND DR

IPC: C07D487/08

Abstract: Procedimiento para la obtención de una disolución de trietilendiamina pura (TEDA), que está caracterizado porque se evapora TEDA a partir de una mezcla que contiene un disolvente o un diluyente, presentando el disolvente o diluyente, a presión normal un punto de ebullición en el intervalo de 175 a 250ºC, e introduciéndose la TEDA en forma de vapor en un disolvente líquido.

公开(公告)号：DE10132499A1

公开(公告)日：2003-01-23

申请号：DE10132499

申请日：2001-07-05

Applicant: BASF AG

Inventor： FRAUENKRON MATTHIAS ,  STEIN BERND ,  LANG ORTMUND

IPC: B01J29/40 ,  C07B61/00 ,  C07D487/08 ,  C07C209/62 ,  C07C211/10

Abstract: The invention relates to a method for producing triethylenediamine by converting piperazine on a zeolite catalyst, which in addition to SiO2 contains an oxide of at least one additional bivalent, trivalent or tetravalent metal M. Said catalyst is characterised in that the zeolite has a molar ratio Si/M of > 100. The invention uses in particular a zeolite of the type ZSM-5. By using the zeolite, the adverse formation of the by-product 2-ethylpiperazine can be suppressed, whilst obtaining high piperazine conversion rates and low amounts of excess water, thus significantly simplifying preparation.