EP 1915359 A1 20080430 - INTEGRATED METHOD FOR PRODUCING TRIOXANE FROM FORMALDEHYDE
Title (en)
INTEGRATED METHOD FOR PRODUCING TRIOXANE FROM FORMALDEHYDE
Title (de)
INTEGRIERTES VERFAHREN ZUR HERSTELLUNG VON TRIOXAN AUS FORMALDEHYD
Title (fr)
PROCEDE INTEGRE DE PRODUCTION DE TRIOXANE A PARTIR DE FORMALDEHYDE
Publication
Application
Priority
- EP 2006065089 W 20060804
- DE 102005037293 A 20050808
Abstract (en)
[origin: WO2007017479A1] The invention relates to an integrated method for producing trioxane from formaldehyde. According to said method, a flow A1 containing water and formaldehyde and a return flow B2 consisting essentially of water and formaldehyde are introduced into a trioxane synthesis reactor in which the formaldehyde is converted into trioxane, forming a product flow A2 containing trioxane, water and formaldehyde; the flow A2 is introduced into a first distillation column and distilled at a pressure of between 0.1 and 2.5 bar, forming a trioxane-enriched flow B1 and the flow B2 consisting essentially of water and formaldehyde; the flow B1 and a return flow D1 containing trioxane, water and formaldehyde are introduced into a second distillation column and distilled at a pressure of between 0.2 and 17.5 bar, forming a product flow C2 consisting essentially of trioxane and a flow C1 containing trioxane, water and formaldehyde; and the flow C1 is introduced into a third distillation column and distilled at a pressure of between 0.1 and 2.5 bar, forming the return flow D1 containing trioxane, water and formaldehyde and a flow D2 consisting essentially of water and formaldehyde.
IPC 8 full level
C07D 323/06 (2006.01)
CPC (source: EP KR US)
C07D 323/06 (2013.01 - EP KR US); Y02P 20/10 (2015.11 - EP US)
Citation (search report)
See references of WO 2007017479A1
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 102005037293 A1 20070215; AU 2006277926 A1 20070215; BR PI0614728 A2 20160816; CA 2617479 A1 20070215; CN 101238115 A 20080806; EP 1915359 A1 20080430; JP 2009504607 A 20090205; KR 20080033363 A 20080416; MX 2008001005 A 20080325; NO 20080303 L 20080229; US 2010152466 A1 20100617; WO 2007017479 A1 20070215
DOCDB simple family (application)
DE 102005037293 A 20050808; AU 2006277926 A 20060804; BR PI0614728 A 20060804; CA 2617479 A 20060804; CN 200680029171 A 20060804; EP 06792714 A 20060804; EP 2006065089 W 20060804; JP 2008525559 A 20060804; KR 20087003039 A 20080205; MX 2008001005 A 20060804; NO 20080303 A 20080116; US 6317106 A 20060804