公开(公告)号：JP2001064281A

公开(公告)日：2001-03-13

申请号：JP2000221322

申请日：2000-07-21

Applicant: BASF AG

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

IPC: C07D471/08 ,  C07D487/08

Abstract: PROBLEM TO BE SOLVED: To provide an effective and economical method for producing pure triethylenediamine(TEDA) and its solution. SOLUTION: This method for producing pure triethylenediamine solution comprises evaporating triethylenediamine and introducing the gas state triethylenediamine into a liquid solvent. The gaseous triethylendiamine is obtained from the top of a column or its side discharging port. Further, the pure triethylenediamine solution is produced by following the above method and then crystallizing the triethylenediamine from the solution. The liquid solvent is selected from the group consisting of cyclic or non-cyclic hydrocarbons, chlorinated aliphatic hydrocarbons, aromatic hydrocarbons, alcohols, ketones, aliphatic carboxylic acid esters, aliphatic nitriles and ethers.

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：DE19933850A1

公开(公告)日：2001-01-25

申请号：DE19933850

申请日：1999-07-23

Applicant: BASF AG

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

IPC: C07D487/08 ,  C07C209/84 ,  C07C209/86 ,  C07C211/10

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.