EP 1001954 A1 20000524 - METHOD FOR TRIOXAN ISOLATION
Title (en)
METHOD FOR TRIOXAN ISOLATION
Title (de)
VERFAHREN ZUR ABTRENNUNG VON TRIOXAN
Title (fr)
PROCEDE DE SEPARATION DE TRIOXANNE
Publication
Application
Priority
- DE 19732291 A 19970726
- EP 9804094 W 19980702
Abstract (en)
[origin: DE19732291A1] The invention relates to a method for trioxan isolation from an aqueous mixture basically consisting of trioxan, water and formaldehyde. The method is characterized in that trioxan is withdrawn from the mixture by pervaporation and in that the trioxan enriched mixture (permeate) is separated by trioxan rectification and an azeotropic mixture of trioxan, water and formaldehyde.
IPC 1-7
IPC 8 full level
B01D 61/36 (2006.01); C07D 323/06 (2006.01)
CPC (source: EP KR US)
B01D 61/362 (2013.01 - EP KR US); C07D 323/06 (2013.01 - EP KR US); Y10S 159/27 (2013.01 - EP US); Y10S 159/28 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
DE 19732291 A1 19990128; CN 1264374 A 20000823; EP 1001954 A1 20000524; JP 2001510839 A 20010807; KR 20010022244 A 20010315; PL 338381 A1 20001023; US 6200429 B1 20010313; WO 9905137 A1 19990204
DOCDB simple family (application)
DE 19732291 A 19970726; CN 98807365 A 19980702; EP 9804094 W 19980702; EP 98939607 A 19980702; JP 2000504133 A 19980702; KR 20007000817 A 20000125; PL 33838198 A 19980702; US 46262700 A 20000111