Loading patent…
AssigneeBayer MaterialScience AG
InventorsRainer Bruns, Fritz Pohl, Friedhelm Steffens, Volker Michele
Estimating the term…
Primary isocyanates are produced by reacting the corresponding primary amine(s) with phosgene at a temperature above the boiling temperature of the amine(s) in a tube reactor with a reaction space. In this tube reactor, at least one educt stream P containing phosgene and at least one educt stream A containing the amine(s) are fed to the reaction space via a nozzle arrangement. The nozzle arrangement includes a number of n≧1 nozzles aligned parallel to the axis of rotation of the tube reactor and a free space surrounding the nozzles. One of the educt streams A or P is fed to the reaction space via the nozzles and the other educt stream is fed to the reaction space via the free space surrounding the nozzles. The reaction space contains at least one moving mixing device.
A process for the production of a primary isocyanate comprising reacting a primary amine with phosgene in a tube reactor at a temperature above the boiling point of the primary amine wherein the tube reactor comprises a reaction space in which
Dependencies are inferred from the claim text.