EP 1002231 A1 20000524 - ON-LINE ANALYSIS OF PROCESS GAS DURING THE PRODUCTION OF KETENE
Title (en)
ON-LINE ANALYSIS OF PROCESS GAS DURING THE PRODUCTION OF KETENE
Title (de)
ON-LINE-ANALYSE DER PROZESSGASE BEI DER HERSTELLUNG VON KETEN
Title (fr)
ANALYSE EN LIGNE DES GAZ UTILISES LORS DE LA PREPARATION DE CETENE
Publication
Application
Priority
- DE 19733837 A 19970806
- EP 9804655 W 19980724
Abstract (en)
[origin: DE19733837A1] A process is disclosed for the on-line analysis of a reactive gas mixture in a container, in particular a gas mixture containing ketene, diketene, acetic acid anhydride and/or acetic acid. The process is characterised in that part of the gas mixture is temporarily expanded in a sampling pipe and subjected to a mass spectrometric analysis through a probe integrated into the container and having an opening with a free cross-section smaller than or equal to 1 mm<2>.
IPC 1-7
IPC 8 full level
G01N 27/62 (2006.01); G01N 1/00 (2006.01); G01N 1/22 (2006.01); G01N 33/00 (2006.01); G01N 1/24 (2006.01)
CPC (source: EP US)
G01N 1/2247 (2013.01 - EP US); G01N 33/0011 (2013.01 - EP US); G01N 2001/2261 (2013.01 - EP US); G01N 2001/244 (2013.01 - EP US); Y10T 436/24 (2015.01 - EP US)
Citation (search report)
See references of WO 9908104A1
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)
DE 19733837 A1 19990225; DE 19733837 C2 20000727; CA 2299248 A1 19990218; CN 1266488 A 20000913; EP 1002231 A1 20000524; JP 2001512828 A 20010828; US 6284547 B1 20010904; WO 9908104 A1 19990218
DOCDB simple family (application)
DE 19733837 A 19970806; CA 2299248 A 19980724; CN 98808005 A 19980724; EP 9804655 W 19980724; EP 98939639 A 19980724; JP 2000506522 A 19980724; US 46367600 A 20000427