EP 1945689 A1 20080723 - PROCESS FOR PRODUCING TRIOXANE AND AT LEAST ONE COMONOMER
Title (en)
PROCESS FOR PRODUCING TRIOXANE AND AT LEAST ONE COMONOMER
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TRIOXAN UND MINDESTENS EINEM COMONOMER
Title (fr)
PROCEDE DE FABRICATION DE TRIOXANE ET D AU MOINS UN COMONOMERE
Publication
Application
Priority
- EP 2006067851 W 20061027
- DE 102005051974 A 20051031
Abstract (en)
[origin: DE102005051974A1] Preparation of trioxane and at least a comonomer for the preparation of (co)polymer on trioxane basis, comprises (a) converting formaldehyde and at least a co-monomer educt to trioxane and co-monomer in an aqueous solution to obtain a reaction mixture; (b) distilling the reaction mixture in a first distillation step at a first pressure to obtain stream (B1) and a stream (B2); and (c) distilling the stream (B1) in a second distillation step to obtain stream (C1) containing trioxane, co-monomer and water, and a product stream (C2) containing co-monomer and trioxane. Preparation of trioxane and at least a co-monomer for the preparation of (co)polymer on trioxane basis, comprises: (a) converting formaldehyde and at least a co-monomer educt to trioxane and co-monomer in an aqueous solution to obtain a reaction mixture containing trioxane, co-monomer, formaldehyde, water and optionally co-monomer educt, by synthesis step; (b) distilling the reaction mixture in a first distillation step at a first pressure to obtain stream (B1) enriched with trioxane and comonomer, and a stream (B2) containing water, formaldehyde and optionally comonomer-educt; and (c) distilling the stream (B1) in a second distillation step at a pressure above the pressure of the first distillation step to obtain stream (C1) containing trioxane, co-monomer and water, and a product stream (C2) containing co-monomer and trioxane.
IPC 8 full level
C07D 317/12 (2006.01); C07D 319/00 (2006.01); C07D 323/06 (2006.01); C08G 2/10 (2006.01)
CPC (source: EP KR US)
C07D 317/12 (2013.01 - EP KR US); C07D 319/00 (2013.01 - KR); C07D 323/06 (2013.01 - EP KR US); C08G 2/10 (2013.01 - EP KR US); C08G 2/20 (2013.01 - EP US); Y02P 20/10 (2015.11 - EP US); Y02P 20/582 (2015.11 - EP US)
Citation (search report)
See references of WO 2007051762A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005051974 A1 20070503; AU 2006310554 A1 20070510; BR PI0618065 A2 20160913; CA 2627080 A1 20070510; CN 101321789 A 20081210; EP 1945689 A1 20080723; JP 2009513687 A 20090402; KR 20080075126 A 20080814; NO 20081897 L 20080527; US 2008283384 A1 20081120; WO 2007051762 A1 20070510
DOCDB simple family (application)
DE 102005051974 A 20051031; AU 2006310554 A 20061027; BR PI0618065 A 20061027; CA 2627080 A 20061027; CN 200680045123 A 20061027; EP 06807603 A 20061027; EP 2006067851 W 20061027; JP 2008538342 A 20061027; KR 20087013040 A 20080530; NO 20081897 A 20080422; US 9197606 A 20061027