Salifying reactor and method for preparing isocyanate
A reactor and salt-forming technology, which is applied in the field of salt-forming reactor and the preparation of isocyanate by using the reactor, to achieve the effects of low hydrolysis chlorine, avoiding incomplete amine reaction, and low color number
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Embodiment 1
[0065] like figure 1 As shown, a salt reactor volume is 600L, and the cylindrical porous plate 14 is 1 / 3 of the kettle body 1 diameter, the opening rate is 50%, the aperture 30 μm; the height and disc distribution of the cylindrical porous plate 14 The ratio of the top distance of the kettle body 1 is 1: 4; the disk distributor 8 opens the opening rate of 60%, the aperture 20 μm; the hollow grinding block (60% openings rate) is a hollow cone shape, a height of 3 cm, and a hollow grinding The block settings are 40% of the inner surface area, the outer surface area, and the disk distributor 8, respectively; 2 / 3 of the diameter of the rotary polishing cartridge 9 is 2 / 3 of the kettle body 1; the angle of the scraper 19 is 40 °. The number of scrapers on the rotating grinding cylinder 9 is 8.
[0066]In the kettle body 1, 160 kg of chlorobenzene was added to the solvent feed tube 20 as a reaction solvent, and the stirring 700 rmp was opened, and the hydrogen chloride compressed gas wa...
Embodiment 2
[0069] like figure 1 As shown, the salt reactor volume is 600L, and the cylindrical porous plate 14 is 1 / 2 of the diameter of the kettle body 1, the opening rate is 60%, the aperture 20 μm; the height and disc distribution of the cylindrical porous plate 14 The ratio of the top distance of the kettle body 1 is 1: 5; the disk distributor 8 opens up 70%, the aperture 10 μm; the hollow grinding block (50% openings rate) is a hollow cone shape, a height 5cm, a hollow grinding The block settings are 60% of the inner surface area, the outer surface area, and the disk distributor 8, respectively; the diameter of the rotating polishing cylinder 9 is 3 / 4 of the kettle body 1; the angle of the doctor blade 19 is 50 ° The number of scrapers on the rotating grinding cylinder 9 is 10.
[0070] In the kettle body 1, 120 kg of chlorobenzene is added to the solvent feed tube 20 as a reaction solvent, and the stirring 700 rmp is opened, and the hydrogen chloride compressed gas is passed through th...
Embodiment 3
[0073] like figure 1 As shown, the salt reactor volume is 600L, and the cylindrical porous plate 14 is diameter of 1 / 2, the opening rate of 70%, the hole diameter is 10 μm; the height of the cylindrical porous plate 14 is distributed. The ratio of the top distance from the column of kettle body 1 is 1: 5; the disk distributor 8 opens the opening rate of 70%, the aperture 5 μm; the hollow-grinding block (70% openings ratio) is a hollow cone shape, a height 6cm, and the hollow grinding The block settings are 70% of the inner surface area, the outer surface area, and the disk distributor 8, respectively; the diameter of the rotating polishing cartridge 9 is 3 / 4 of the kettle body 1; the angle of the doctor blade 19 is 60 ° The number of scrapers on the rotating grinding cup 9 is 12.
[0074] In the kettle body 1, 180 kg of chlorobenzene was added to the solvent feed tube 20 as a reaction solvent, and the stirred 800 rmp was opened, and the hydrogen chloride compressed gas was passed ...
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