EP 1144104 A1 20011017 - METHOD AND DEVICE FOR PRODUCING FORMALDEHYDE
Title (en)
METHOD AND DEVICE FOR PRODUCING FORMALDEHYDE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON FORMALDEHYD
Title (fr)
PROCEDE ET DISPOSITIF PERMETTANT DE PRODUIRE DU FORMALDEHYDE
Publication
Application
Priority
- AT 9900303 W 19991210
- AT 207398 A 19981210
Abstract (en)
[origin: WO0033952A1] The invention relates to a method for producing formaldehyde from air, methanol and possibly water in a formaldehyde reactor with silver catalyst (2). By means of a special reaction gas cooling structure (3) the reaction gas is cooled in less than 60 milliseconds. The reaction gas cooler is configured as an internally-cooled horizontal tube heat exchanger (3). A spray cooler (4) can be arranged below the reaction gas cooler (3). The method provided for in the invention allows for high yields, good product quality and a trouble-free service life of the apparatus.
IPC 1-7
IPC 8 full level
B01J 8/02 (2006.01); C07C 45/38 (2006.01); C07C 47/055 (2006.01)
CPC (source: EP)
B01J 8/025 (2013.01); B01J 8/0285 (2013.01); C07C 45/38 (2013.01); B01J 2208/00194 (2013.01); B01J 2208/00203 (2013.01); B01J 2208/00256 (2013.01)
Citation (search report)
See references of WO 0033952A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0033952 A1 20000615; AT 412871 B 20050825; AT A207398 A 20050115; AU 1531000 A 20000626; EP 1144104 A1 20011017
DOCDB simple family (application)
AT 9900303 W 19991210; AT 207398 A 19981210; AU 1531000 A 19991210; EP 99957687 A 19991210