A sulfuryl fluoride reaction device

Abstract

The invention provides a sulfuryl fluoride reaction device, comprising a reaction chamber and a heat exchange chamber, the reaction chamber and the heat exchange chamber are arranged at intervals; the gas inlet of the heat exchange chamber is connected with the gas outlet of a reaction chamber, and the gas outlet of the heat exchange chamber It is connected to the gas inlet of another reaction chamber; a packing layer is arranged in the reaction chamber, and the packing layer is detachably connected with the inner wall of the reaction chamber; a vertical heat exchange tube is arranged in the heat exchange chamber, and an air inlet pipe is connected to the top of the heat exchange tube. The bottom end of the heat exchange tube is connected with an air outlet pipe; a filter plate is installed between the vertical heat exchange tubes, and the filter plate is detachably connected with the outer wall of the vertical heat exchange tube. Using this device for the synthesis of sulfuryl chloride can effectively prevent the activity of the packing layer from being affected by the high temperature of the process gas and ensure the yield of sulfuryl fluoride; the device can effectively reduce the particulate impurities in the process gas and prevent the particulate impurities from entering the next reaction The chamber affects the composition and structure of the packing, ensuring the consistent quality of sulfuryl fluoride produced by the synthesis device and ensuring the quality of the product.

Description

A kind of sulfuryl fluoride reaction device technical field The present invention relates to sulfuryl fluoride production equipment technical field, be specifically related to a kind of sulfuryl fluoride reaction device. Background technique Sulfuryl fluoride is a kind of broad-spectrum insecticide, and it has strong permeability, so that it has less consumption, With the advantages of fast insecticidal speed and low residual amount, as people's awareness of environmental protection increases, there are more and more studies on sulfuryl fluoride. The synthesis technique of sulfuryl fluoride is more, wherein with hydrofluoric acid, chlorine and sulfur dioxide as starting material, with gac The route of synthesizing sulfuryl fluoride as a catalyst is most commonly used; in this synthesis route, the catalyst is first activated with hydrofluoric acid, Then, hydrofluoric acid, chlorine and sulfur dioxide are gasified and preheated, and then enter the reaction device to ca...

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Problems solved by technology

The reaction device currently used for sulfuryl fluoride is an adiabatic fixed-bed reactor, and the reaction device mainly has the following problems during use: First, the synthesis reaction is an exothermic reaction, and as the synthesis process progresses, the temperature of the output gas will decrease. Gradually increasing, the high temperature will affect the activity of activated carbon, and then affect the yield of sulfuryl fluoride; the second is that the process output gas will inevitably carry particulate impurities. Combined, resulting in a decrease in the activity of activated carbon and affecting the yield of sulfuryl fluoride

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