Butyl ester catalytic reaction and recovery system

Through dropping kettle and multi-stage reactor system and step-by-step treatment, the problems of insufficient reaction and environmental pollution in triisobutyl phosphate production are solved, efficient material separation and purification are achieved, and product quality and environmental performance are improved.

CN223184518UActive Publication Date: 2025-08-05ZIBO CHANGLIN CHEMICAL CO LTD
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Patent Information

Application Number
CN202422300859.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-08-05
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

The traditional triisobutyl phosphate production process has insufficient reaction, large fluctuations in product quality, and serious pollution of waste gas and waste liquids, which has high environmental protection costs.

Method used

The drip kettle and multi-stage reactor system are adopted, combined with the step-by-step treatment of dehydration tower, hydrochloric acid absorption tower, alkaline washing tower, water washing tower and distillation tower, to achieve accurate control, separation and purification of reaction materials, and the combination of gas stirring and mechanical stirring is used to enhance the stirring efficiency and absorb harmful gases through the vacuum unit.

Benefits of technology

It improves reaction efficiency and product quality, reduces environmental pollution, improves material recovery and resource utilization, and enhances system safety.

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Abstract

The utility model discloses a butyl ester catalytic reaction and recovery system, and belongs to the technical field of triisobutyl phosphate. According to the technical scheme, the device comprises a dropwise adding kettle, reaction kettles, a dealcoholization tower, a hydrochloric acid absorption tower, an alkaline washing tower, a water washing tower, a distillation tower, a butyl ester storage tank and a controller which are sequentially connected through pipelines, wherein the reaction kettles comprise the first reaction kettle and the second reaction kettle; the dropwise adding kettle is connected with an isobutanol storage tank through an isobutanol feeding pipeline, and an isobutanol feeding metering pump is arranged on the isobutanol feeding pipeline; the dropwise adding kettle is connected with a phosphorus oxychloride storage tank through a phosphorus oxychloride feeding pipeline, and a phosphorus oxychloride feeding metering pump is arranged on the phosphorus oxychloride feeding pipeline; the dropwise adding kettle is also connected with a catalyst feeding pipeline; and a catalyst feeding metering pump is arranged on the catalyst feeding pipeline. According to the utility model, the reaction sufficiency is promoted through the dripping kettle and the multi-stage reaction kettle, effective separation and purification of reaction products and byproducts are realized through stage-by-stage treatment, and the material recovery rate and the resource utilization rate are improved.
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