Phosgenation reactor and method for preparing isocyanate monomer by using phosgenation reactor
A reactor and phosgenation technology, applied in chemical instruments and methods, chemical/physical/physicochemical fixed reactors, preparation of organic compounds, etc., can solve the problems of reduced yield, internal leakage blockage, high overall energy consumption, etc. problems, to avoid incomplete amine reaction, reduce contact opportunities, and improve the quality of salt formation
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[0041] Example 1
[0042] The volume of the phosgenation reactor is 800L, and the discharger is perpendicular to the feed pipe. The ratio of the distance between the lower surface of the upper discharger and the upper surface of the lower discharger to the height of the reactor is 1:6, the upper and lower dischargers are of hollow cylindrical structure, and the lower surface of the upper discharger 10 The upper surface of the lower discharger 6 and the lower discharger 6 are evenly distributed with circular outlet holes, the opening rates are 60% and 70%, respectively, the discharger diameter is 70% of the reactor diameter, and the height of the discharger and the diameter of the discharger The ratio is 1:20, the height of the packing block 8 in the rotating zone and the distance between the lower surface of the upper discharger and the upper surface of the lower discharger is 1:1. The filler is a wire mesh filler filled in a regular manner. The inner diameter of the outer feed ...
Example Embodiment
[0044] Example 2
[0045] The volume of the phosgenation reactor is 800L, and the discharger is perpendicular to the feed pipe. The ratio of the distance between the lower surface of the upper discharger and the upper surface of the lower discharger to the height of the reactor is 1:7, the upper and lower dischargers are of hollow cylindrical structure, and the lower surface of the upper discharger 10 And the upper surface of the lower discharger 6 is evenly distributed with diamond-shaped outlet holes, the opening rates are 70% and 55%, respectively, the diameter of the discharger is 80% of the diameter of the reactor, and the ratio of the height of the discharger to the diameter of the discharger 1:35, the ratio of the height of the packing block 8 in the rotating zone to the distance between the lower surface of the upper discharger and the upper surface of the lower discharger is 3:4. The packing is a plate corrugated mesh packing filled in a regular manner. The inner diamet...
Example Embodiment
[0047] Example 3
[0048] The volume of the phosgenation reactor is 800L, and the discharger is perpendicular to the feed pipe. The ratio of the distance between the lower surface of the upper discharger and the upper surface of the lower discharger to the height of the reactor is 1:8, the upper and lower dischargers are of hollow cylindrical structure, and the lower surface of the upper discharger 10 And the upper surface of the lower discharger 6 is evenly distributed with triangular outlet small holes, the opening rate is 65%, the diameter of the discharger is 50% of the diameter of the reactor, and the ratio of the height of the discharger to the diameter of the discharger is 1: 40. The ratio between the height of the packing block 8 in the rotating zone and the distance between the lower surface of the upper discharger and the upper surface of the lower discharger is 1:2. The packing is a plate corrugated mesh packing filled in a regular manner, and the outer feeding pipe T...
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