摘要:
The invention relates to a method for obtaining cyclododecatriene (CDT) from a solution containing CDT and high-boiling components such as a deactivated catalyst and polymers. Said solution is supplied to a preheater and heated, and is then relaxed over a downstream pressure maintaining device, and the two-phase mixture obtained is supplied to a spiral tube evaporator where the CDT content of the liquid phase is reduced by partial evaporation and a gaseous product flow with an increased CDT concentration is derived.
摘要:
The present invention relates to a process for preparing at least one monocyclic ketone having 4 to 20 carbon atoms by reacting a mixture G1 comprising at least one monocyclic olefin having 4 to 20 carbon atoms with a mixture G2 comprising at least dinitrogen monoxide, this reaction being carried out adiabatically.
摘要:
Die vorliegende Erfindung betrifft ein neues Verfahren zur Herstellung von in Lösungsmitteln flockulationsstabilen, Isocyanuratgruppen aufweisenden Polyisocyanaten von (cyclo)aliphatischen Diisocyanaten.
摘要:
The invention relates to a method for producing cyclododecanone by reacting cyclododecen with dinitrogen, especially a method comprising steps (I) and (II): (I) producing cyclododecen by partially hydrating cyclododecatriene; (II) reacting the cyclododecen obtained in step (I) with dinitrogen monoxide, thereby obtaining cyclododecanone.