Method and device for the continous production of organic mono or polyisocyanates
AssigneeBASF SE
InventorsAndreas Wolfert, Ulrich Penzel
Life of this patent
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Abstract
Starting material streams are mixed in a mixer (13) for the phosgenation of amines by a process in which the reaction product (3) is removed in a closed loop and the starting material streams (1.2) contain organic solvents. The main streams (1.1, 2.1) and/or part-streams (1.2, 2.2) of the starting materials (1, 2) come into contact with one another according to the countercurrent principle.
Claims12
A process for mixing starting material streams in a mixer (13) for the phosgenation of amines, in which the reaction product (3) is removed in a closed loop and the starting material streams (1, 2) may contain organic solvents, wherein main streams (1.1, 2.1) and/or part-streams (1.2, 2.2) of the starting materials (1, 2) come into contact with one another according to the countercurrent principle under a feed angle (4) greater than 90° C. and wherein the momentum of one main stream (1.1, 2.1) is higher than the momentum of the other main stream (1. 1, 2. 1).
Apparatus for mixing two starting material streams (1, 2) which are fed to a mixing configuration (13), wherein main streams (2.1, 1.1) of the starting materials (1, 2) are transported in feed channels (6, 7) which are directed toward one another and from which a discharge line (5, 14) branches off.
Dependencies are inferred from the claim text.