Process for preparing isocyanates in the gas phase

Details Process for preparing isocyanates in the gas phase Process for preparing isocyanates in the gas phase

C - Chemistry, Metallurgy

07

C

C07C 263/10 (2006.01) C07C 265/14 (2006.01) C07C 265/04 (2006.01) C07C 265/10 (2006.01) C07C 265/12 (2006.01)

Patent

CA 2485396

A process for preparing isocyanates in the gas phase, in which the mixing of the reactants and thus the reaction conditions are significantly improved by means of hydrodynamic measures such as increasing the turbulence of the feed stream in the central nozzle. As a consequence, the necessary residence time in the reactor and thus the length of the reactor are reduced and the formation of polymeric by-products which lead to caking in the reactor and a shortening of the operating period of the reactors is avoided.

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