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Machine translation
1. (WO2005111043) METHOD FOR PRODUCING A SOLUTION OF PURE TRIETHYLENEDIAMINE (TEDA)
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/111043    International Application No.:    PCT/EP2005/005226
Publication Date: 24.11.2005 International Filing Date: 13.05.2005
Chapter 2 Demand Filed:    25.02.2006    
IPC:
C07D 487/08 (2006.01)
Applicants: BASF AKTIENGESELLSCHAFT [DE/DE]; 67056 Ludwigshafen (DE) (For All Designated States Except US).
LANG, Ortmund [DE/DE]; (DE) (For US Only).
FRAUENKRON, Matthias [DE/DE]; (DE) (For US Only)
Inventors: LANG, Ortmund; (DE).
FRAUENKRON, Matthias; (DE)
Common
Representative:
BASF AKTIENGESELLSCHAFT; 67056 Ludwigshafen (DE)
Priority Data:
10 2004 024 274.7 15.05.2004 DE
Title (DE) VERFAHREN ZUR HERSTELLUNG EINER LÖSUNG VON REINEM TRIETHYLENDIAMIN (TEDA)
(EN) METHOD FOR PRODUCING A SOLUTION OF PURE TRIETHYLENEDIAMINE (TEDA)
(FR) PROCEDE DE PRODUCTION D'UNE SOLUTION DE TRIETHYLENEDIAMINE (TEDA) PURE
Abstract: front page image
(DE)Verfahren zur Herstellung einer Lösung von reinem Triethylendiamin (TEDA), in dem man TEDA verdampft, das dampfförmige TEDA in ein flüssiges Lösungsmittel 1 einleitet (Quench) und das TEDA aus der erhaltenen Lösung auskristallisiert und abtrennt (Fest-Flüssig-Trennung), wobei man das erhaltene kristalline TEDA in einem Lösungsmittel 2 löst und durch die resultierende Lösung ein Strippgas leitet (Strippung).
(EN)The invention relates to a method for producing a solution of pure triethylenediamine (TEDA), whereby TEDA is evaporated; the TEDA vapour is introduced into a liquid solvent (1) (quenching) and the TEDA is crystallised out of the obtained solution and separated (solid-liquid separation). Said method is characterised in that the obtained crystalline TEDA is dissolved in a solvent (2) and a stripping gas is led through the resulting solution (stripping).
(FR)L'invention concerne un procédé de production d'une solution de triéthylènediamine (TEDA) pure, selon lequel la TEDA est évaporée ; la TEDA à l'état de vapeur est introduite dans un solvant liquide (1) (refroidissement) puis la TEDA est extraite de la solution obtenue par cristallisation et séparée (séparation solide-liquide). Ce procédé se caractérise en ce que la TEDA cristalline obtenue est dissoute dans un solvant (2) et un gaz de stripage est dirigé à travers la solution résultante (stripage).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: German (DE)
Filing Language: German (DE)