公开(公告)号：MY139280A

公开(公告)日：2009-09-30

申请号：MYPI20043085

申请日：2004-07-30

Applicant: BASF AG

Inventor： FRAUENKRON MATTHIAS DR ,  MILLER CHRISTIAN ,  KRUG THOMAS ,  EVERS HOLGER DR ,  MELDER D JOHANN-PETER ,  ROETTGER RODERICH DR ,  SIEGERT MARKUS DR ,  GERLACH TILL DR ,  NOUWEN JAN DR ,  DAHLHOFF ELLEN DR

IPC: C07C209/60 ,  C07C209/64 ,  C07C211/14

Abstract: PROCESS FOR THE PREPARATION OF ETHYLENAMINES,IN PARTICULAR DIETHYLENETRIAMINE (DETA), BY CONTINUOUS REACTION OF ETHYLENEDIAMINE (EDA) IN THE PRESENCE OF A HETEROGENEOUS CATALYST, WHERE THE REACTION IS CARRIED OUT IN A REACTION COLUMN.

公开(公告)号：MY138351A

公开(公告)日：2009-05-29

申请号：MYPI20043895

申请日：2004-09-23

Applicant: BASF AG

Inventor： REIF WOLFGANG DR ,  HAMMER HANS ,  RUIDER G XDCNTHER DR ,  MEIER ANTON DR ,  BUSKENS PHILIP DR ,  FRAUENKRON MATTHIAS DR

IPC: C07C213/10 ,  C07C215/12

Abstract: PROCESS FOR SEPARATING TRIETHANOLAMINE CONTINUOUSLY BY DISTILLATION FROM A MIXTURE OF MONOETHANOLAMINE, DIETHANOLAMINE AND TRIETHANOLAMINE TOGETHER WITH ETHANOLAMINE ETHERS AND WATER OBTAINED BY REACTION OF AMMONIA WITH ETHYLENE OXIDE IN THE LIQUID PHASE UNDER SUPERATMOSPHERIC PRESSURE AND AT ELEVATED TEMPERATURE, IN WHICH THE MIXTURE IS DISTILLED IN TWO STAGES. THE LOW-BOILING FRACTION AND THE HIGH-BOILING FRACTION ARE TAKEN OFF AND DISCHARGED IN THE FIRST STAGE AND THE INTERMEDIATE-BOILING FRACTION COMPRISING > 99.4% BY WEIGHT OF TRIETHANOLAMINE AND

公开(公告)号：MY137615A

公开(公告)日：2009-02-27

申请号：MYPI20012675

申请日：2001-06-08

Applicant: BASF AG

Inventor： FRAUENKRON MATTHIAS DR ,  MULLER ULRICH DR ,  HARDER WOLFGANG DR ,  UNGER JORG DR ,  MELDER JOHANN-PETER DR ,  MEIER ANTON DR ,  HIMMEL WALTER DR

IPC: C07B61/00 ,  C07C213/04 ,  C07C215/08 ,  C07C215/12 ,  C07D301/03

Abstract: AT LEAST ONE ALKANOLAMINE IS PREPARED BY REACTING AMMONIA WITH ALKYLENE OXIDE IN A REACTION SPACE IN THE PRESENCE OF A CATALYST TO GIVE MONOALKANOLAMINE OR DIALKANOLAMINE OR TRIALKANOLAMINE OR A MIXTURE OF TWO OR THREE OF THESE COMPOUNDS, THE DISTRIBUTION OF THE VARIOUS ALKANOLAMINES WITHIN THE PRODUCT SPECTRUM BEING CONTROLLED BY MEANS OF THE TEMPERATURE IN THE REACTION SPACE, BY A PROCESS IN WHICH THE TEMPERATURE IS ESTABLISHED BY REGULATING THE TEMPERATURE PROFILE IN THE REACTION SPACE.

公开(公告)号：AT298340T

公开(公告)日：2005-07-15

申请号：AT02010129

申请日：2002-05-10

Applicant: BASF AG

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