A continuous photochlorination reactor for toluene side chains and its usage method

By refining the bubbles through a combination of rotating rod and stirring rod, and then allowing them to accumulate in the gas storage arc surface under the baffle plate for ultraviolet light-induced reaction, the problem of low gas-liquid mass transfer efficiency in existing devices is solved, and a highly efficient photochlorination reaction is achieved.

CN122124732BActive Publication Date: 2026-07-17SHANDONG XINBANG NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG XINBANG NEW MATERIALS TECHNOLOGY CO LTD
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing photochlorination reactors suffer from serious technical bottlenecks in gas-liquid mixing and mass transfer. Large bubble size and low gas-liquid mass transfer efficiency lead to high chlorine escape rates, resulting in raw material waste and environmental safety pressures.

Method used

The system employs a combination of a rotating rod and a stirring rod. A negative pressure zone and vortex are formed on the back surface of the stirring rod. Combined with the dynamic and static shear forces of the sweeping scraper and the baffle plate, the bubbles are refined and then collected in the gas storage arc surface on the lower surface of the baffle plate before being induced by ultraviolet light. The reaction heat is absorbed by the cooling chamber.

Benefits of technology

It increases the probability of gas-liquid contact and reaction efficiency, reduces chlorine escape rate, improves reaction conversion rate and product selectivity, and reduces production costs and environmental pressure.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a continuous photochlorination reaction device for toluene side chains and its usage method, belonging to the technical field of chemical production equipment. It includes a reaction vessel, a light-transmitting sleeve, and an ultraviolet light source. A hollow rotating rod is rotatably mounted inside the reaction vessel, and hollow stirring rods are evenly inserted into the side wall of the rotating rod, with the inner cavity of the stirring rods communicating with the inner cavity of the rotating rod. The reaction vessel is equipped with a gas supply mechanism to supply gas to the inner cavity of the rotating rod. This design drives the stirring rod to rotate at high speed. During the rotation, a suction-force water vortex is generated on the back surface of the stirring rod, drawing air bubbles into the vortex. Large air bubbles in the vortex are torn and broken. A high-speed rotating scraper and a stationary baffle work together to cut the air bubbles passing through the bubble-breaking holes. When air bubbles passing through the bubble-breaking holes move along the lower surface of the baffle plate and pass through the gaps between the burrs, air bubbles larger than the gaps between the burrs are obstructed by the side walls of the burrs and broken again.
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