Production system and production process of hexamethyldisilazane

Abstract

The invention relates to the field of chemical engineering, in particular to a production system of hexamethyldisilazane. The system is characterized by comprising a reaction kettle body and a distillation tower, the reaction kettle body and the distillation tower are integrally designed, and a dividing wall type heat exchanger is arranged on the outer side of the reaction kettle body; the dividing wall type heat exchanger comprises a high-low temperature circulating pump, a first water inlet and a first water outlet; the output end of the high-low temperature circulating pump is connected with the first water inlet, the input end of the high-low temperature circulating pump is connected with the first water outlet, a temperature sensor is arranged in the reaction kettle body, the output end of the temperature sensor is connected with a control system, and the output end of the control system controls the high-low temperature circulating pump.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a production system of hexamethyldisilazane and a production process thereof. Background technique [0002] The current production system for the production of hexamethyldisilazane cannot achieve continuous reaction, which increases the workload of the staff and also increases certain risks; the current reactor body is not equipped with a temperature adjustment device, and the temperature in the reactor body cannot be guaranteed It is the best reaction temperature, and at the same time, the temperature of the reactor body cannot be lowered or raised, and there will be certain limitations in the use process; the current reactor body cannot be added smoothly when adding raw materials through the funnel; the current reactor body There is no cleaning device in the reactor, which cannot be cleaned effectively after use, and it is easy to affect the subsequent reaction; at present, the...

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Problems solved by technology

[0002] The current production system for the production of hexamethyldisilazane cannot achieve continuous reaction, which increases the workload of the staff and also increases certain risks; the current reactor body is not equipped with a temperature adjustment device, and the temperature in the reactor body cannot be guaranteed It is the best reaction temperature, and at the same time, the temperature of the reactor body cannot be lowered or raised, and there will be certain limitations in the use process; the current reactor body cannot be added smoothly when adding raw materials through the funnel; the current reactor body There is no cleaning device in the reactor, which cannot be cleaned effectively after use, and it is easy to affect the subsequent reaction; at present, there is no stirring device in the reactor body, and it cannot be stirred effectively during use, and the work efficiency cannot be effectively improved; after the reaction The gas is discharged randomly, which is easy to pollute the environment and cannot protect the environment. At present, hexamethyldisilazane is produced and washed with water. The washing effect of using water is not significant, and the yield of hexamethyldisilazane is reduced at the same time

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