Reaction kettle for producing benzoyl peroxide

Abstract

The invention relates to a reaction kettle for producing benzoyl peroxide, and belongs to the technical field of benzoyl peroxide production devices. The reaction kettle comprises a reaction tank body, a stirrer is arranged in the middle of the reaction tank body, the stirrer comprises a central main shaft and a sleeve shaft, the sleeve shaft is slidably arranged outside the central main shaft in a sleeving manner, and stirring blades and a temperature control distribution ring are arranged on the outer wall of the sleeve shaft; the lower end of the sleeve shaft penetrates through the lower end of the reaction tank body and is connected with an up-down swinging mechanism; the outer wall of the reaction tank body is connected with a precise feeding device through a plurality of injection heads; and a reaction end prompter is arranged on one side of the top of the reaction tank body. According to the device, the stirring blades and the temperature control distribution ring can horizontally rotate at a high speed and vibrate up and down at the same time, material movement is promoted, materials are driven to be mixed and reacted more efficiently, ingredients can be automatically and accurately added through the accurate adding device, the processing efficiency is improved, and the product quality is guaranteed; and automatic reminding of reaction completion can be realized through the reaction completion prompter.

Description

technical field [0001] The invention relates to the technical field of benzoyl peroxide production equipment, in particular to a reaction kettle for producing benzoyl peroxide. Background technique [0002] Benzoyl peroxide is an organic peroxide. As an initiator, it can initiate free radical polymerization and copolymerization of olefinic and diene monomers. It can also be used for crosslinking of unsaturated polyesters. It is often used in polymerization The initiator of the reaction and the vulcanizing agent of the fluorine-containing rubber of dimethyl silicone rubber, the decolorization of the bleached fiber of the refined flour of the oil, etc., can also be used as an external raw material in the pharmaceutical industry to treat skin diseases, etc., and can also be used for chemical analysis, curing and Polymer crosslinking reaction, etc. It is a white crystalline powder with a melting point of 103-106C (decomposition), slightly soluble in water, slightly soluble in e...

AI Technical Summary

Problems solved by technology

[0004] First, in the production process of benzoyl peroxide mixed reaction, a phase transfer catalyst needs to be added. Since the amount of phase transfer catalyst required is very small, a small change in its content will affect the reaction, so it is necessary to ensure its added content Accurate, the existing reactor equipment is fed by pumping, and the amount of feeding needs to be manually preset before each feeding. In the continuous production process, it is difficult to achieve automatic and accurate feeding

[0005] Second, in the production process of benzoyl peroxide mixed reaction, hydrogen peroxide and benzoyl chloride are added. Under the high-speed movement of the material driven by the agitator, the temperature in the material will rise. If the temperature is too high, it will easily cause the hydrogen peroxide to decompose. , and benzoyl chloride is also easily hydrolyzed into potassium benzoate. The existing reactor equipment generally only controls the temperature by setting a jacket outside the tank, and the heat exchange efficiency is insufficient, which will lead to inaccurate and stable temperature control and affect the quality reduction.

[0006] Third, in the benzoyl oxidation mixed reaction production process, after ammonium bicarbonate is slowly put into the reactor, after the ammonium bicarbonate is evenly distributed in hydrogen peroxide, benzoyl chloride is added, and the existing reactor equipment starts from the top The way of feeding makes the path of ammonium bicarbonate distributed to the whole tank move longer, resulting in low feeding distribution rate and slow mixing efficiency

[0007] Fourth, in the production process of benzoyl peroxide mixed reaction, after the materials are mixed in the reactor, it is necessary to manually observe whether the mixed reaction is completed, which is more troublesome

[0008] Fifth, in the existing chemical reactor equipment, the material is driven by the high-speed rotating agitator and mainly moves along the radial direction, and the axial movement of the material is relatively small, resulting in a need to improve the mixing efficiency of the material

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