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How to operate the resin reactor to avoid sticking
May 24, 2019

In real life, the utilization rate of various resins is also high, and the resin polycondensation reaction is carried out in a resin reactor of a certain temperature and pressure. However, for a variety of reasons, the resin reaction vessel is often stuck to the wall, so pay more attention to the operation, so as to avoid economic loss as much as possible.


In the production of resin reactors, standard industrial urea raw materials should be used to limit the sulfate content in urea to 0.01% or less. In the production operation, it should be slowly pressurized and heated. Generally, the water vapor of about 0.15Mpa is kept for 2~3min, then the pressure is gradually raised, and the lifting speed is preferably 0.1-0.15Mpa per minute.


Both heating and cooling should be carried out within a reasonable temperature range. Generally, the steam use temperature should be less than 180 °C, the thermal shock should be less than 120 °C, and the cooling shock should be less than 90 °C. At the same time, care should be taken to determine the appropriate inlet and outlet temperatures of the cooling medium to maintain a balanced operation.


When the resin reactor is operated, the temperature and time of the resin polycondensation reaction should be properly controlled, and the reaction should be terminated in time. Generally, the temperature of the reaction solution should be controlled within ~95 °C to avoid the occurrence of sticking of the resin reaction

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