Assertion: phosgene | /r/HasProperty | condensed
Facets:
value: at temperatures below −10° c.
type: OTHER
value: at slight overpressure
type: CAUSE
value: at atmospheric pressure
type: OTHER
Source sentences:
text: The present invention accordingly provides a process for the continuous production of phosgene, wherein phosgene is produced from CO and chlorine in the presence of at least one catalyst in at least a first generator, then the phosgene is condensed in at least a first condenser and CO-containing residual gases are separated off, characterised in that the CO-containing residual gases from the first condenser(s) are reacted to further phosgene with addition of further chlorine in at least one secondary generator and then the phosgene produced in the secondary generator is condensed in at least one secondary condenser and uncondensed residual gases are separated off.
text: The phosgene produced in the secondary generator(s) is condensed in at least one (phosgene) secondary condenser, preferably at temperatures below −10° C., at atmospheric pressure or slight overpressure up to 3 bar (absolute), and thus separated from the residual gases still remaining.
text: The present invention accordingly provides a process for the continuous production of phosgene, wherein phosgene is produced from CO and chlorine in the presence of at least one catalyst in at least a first generator, then the phosgene is condensed in at least a first condenser and CO-containing residual gases are separated off, characterised in that the CO-containing residual gases from the first condenser(s) are reacted to further phosgene with addition of further chlorine in at least one secondary generator and then the phosgene produced in the secondary generator is condensed in at least one secondary condenser and uncondensed residual gases are separated off.