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Stirring reaction device suitable for strong corrosive gas to participate in reaction

A reaction device, strong corrosion technology, applied in chemical/physical/physical-chemical stationary reactors, chemical/physical/physical-chemical processes, chemical instruments and methods, etc., can solve the strict requirements of sealing systems, reactor damage, fluorine To avoid problems such as low chemical efficiency, avoid local high temperature or local excessive fluorination, prolong service life, and prevent direct contact

Inactive Publication Date: 2020-06-02
ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the particularity of fluorine gas, the requirements for the reaction system are very high, and it must be deoiled and degreased, and the reactor will be damaged if the treatment is not complete.
The requirements for the sealing system of the reactor are even more stringent. The sealing ring of a conventional agitator will react with fluorine gas when it encounters fluorine gas, and some patents mention that the dynamic sealing ring using tetrafluoroethylene is used in the environment with a slightly higher purity of fluorine gas. Damage will occur as in the case
Moreover, in most cases, stirring is not used in the fluorine fluorination system due to technical problems, so during the fluorination reaction, first, the fluorination efficiency is low, and second, the fluorination is not complete

Method used

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  • Stirring reaction device suitable for strong corrosive gas to participate in reaction

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Embodiment 1

[0030] This embodiment relates to a stirring reaction device suitable for strong corrosive gases to participate in the reaction, such as figure 1 As shown, the reaction device includes a reactor 1, a strong corrosive gas inlet conduit 4, a strong corrosive gas outlet 5, an insulating liquid and an agitator 7 for stirring the insulating liquid;

[0031] The drive shaft 3 of the agitator extends into the reactor 1 from the bottom of the reactor 1, and the seal 8 between the drive shaft 3 and the reactor 1 is located in the spacer liquid, the The strong corrosive gas inlet conduit 4 extends below the liquid level of the spacer liquid, and its gas outlet does not contact the seal 8, and the strong corrosive gas gas outlet 5 is located above the liquid level of the spacer liquid; The spacer fluid does not react with the strong corrosive gas.

Embodiment 2

[0033] This embodiment relates to a stirring reaction device suitable for strong corrosive gases to participate in the reaction. Compared with Embodiment 1, the difference is that the inlet conduit 4 of the strong corrosive gas runs along the inner wall of the reactor 1 to the bottom, And the opening is located upwards from the projected position of the stirring blade of the stirrer. The inside of the reactor is provided with one or more temperature sensors, and the outer wall of the reactor is provided with a thermal insulation jacket 6, and the temperature sensor is connected with the thermal insulation jacket 6, and is connected to the thermal insulation jacket. Send temperature signal.

Embodiment 3

[0035] This embodiment relates to a stirring reaction device suitable for strong corrosive gases to participate in the reaction. Compared with Embodiment 1, the difference is that the seal at the connection between the drive shaft and the reactor is made of Monel or Hastelloy The reactor is made of stainless steel or nickel alloy, and the reactor of the present invention is also provided with a material inlet and a material outlet.

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Abstract

The invention relates to a stirring reaction device suitable for strong corrosive gas to participate in a reaction. The reaction device comprises a reactor, a stirrer, a strong corrosive gas inlet guide pipe and a strong corrosive gas outlet guide pipe, wherein the reactor is internally provided with a spacer fluid, the driving shaft of the stirrer extends into the reactor from the bottom of the reactor, the strong corrosive gas inlet guide pipe extends into the reactor, the gas outlet of the strong corrosive gas inlet guide pipe is positioned below the liquid level of the spacer fluid, and the gas outlet of the strong corrosive gas outlet guide pipe is positioned above the liquid level of the spacer fluid. The stirrer is arranged at the bottom of the reactor, and strong corrosive gas is directly introduced into the spacer fluid, so that the strong corrosive gas can be prevented from being in direct contact with the sealing element so as to effectively protect the sealing element.

Description

technical field [0001] The invention relates to the field of stirring reaction devices, in particular to a stirring reaction device suitable for strong corrosive gases to participate in the reaction. Background technique [0002] With the continuous research on the utilization of fluorine gas at home and abroad, fluorine gas fluorination is used in various fields, such as the surface fluorination of rubber, the fluorination of fluorinated fine chemicals, the fluorination end-capping technology of perfluorinated compounds, and so on. However, due to the particularity of fluorine gas, the requirements on the reaction system are very high, and it must be degreased, and the reactor will be damaged if the treatment is not complete. The requirements for the sealing system of the reactor are even more stringent. The sealing ring of a conventional agitator will react with fluorine gas when it encounters fluorine gas, and some patents mention that the dynamic sealing ring using tetra...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01J19/02
CPCB01J19/0073B01J19/02B01J19/18
Inventor 郭澎湃汪仲权王亚宁杨旭仓张锋
Owner ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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