A solvent tower for cleaning with isopropyl benzene

By introducing components such as sieve trays and conical drainers into the cumene solvent alkaline washing tower, uniform mixing and separation of alkaline solution and cumene solvent were achieved, solving the problem of insufficient mixing and improving alkaline washing efficiency and mass transfer efficiency.

CN224442978UActive Publication Date: 2026-07-03LIHUAYI WEIYUAN CHEM CO LTD
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Patent Information

Application Number
CN202521125509.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2026-07-03
Estimated Expiration
2035-06-04

AI Technical Summary

Technical Problem

The existing cumene solvent alkaline washing tower has a problem of insufficient mixing between the alkaline solution and the cumene solvent, resulting in incomplete alkaline washing.

Method used

A cumene solvent alkaline washing tower was designed, comprising a sieve tray, a conical drainer, a liquid redistributor, top and bottom fixing frames, structured packing, and a separation and drainage assembly. The arrangement of these components enables uniform mixing and separation of the alkaline solution and the cumene solvent.

Benefits of technology

It improves the efficiency of alkaline washing, ensures the full reaction of alkaline solution and cumene solvent, enhances mass transfer efficiency and reduces resistance, and simplifies separation operation.

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Abstract

This utility model relates to the field of alkaline washing tower technology and discloses an alkaline washing tower for cumene solvent. The alkaline washing tower includes a main body with a top cover and a column. The column is equipped with a feeding mechanism, and the main body is equipped with an alkaline washing mechanism for cumene solvent. The alkaline washing mechanism includes an alkaline washing component and a separation and drainage component. In the alkaline washing component, the sieve tray, liquid redistributor, and structured packing work together to ensure uniform and efficient mixing and reaction of the alkaline solution and cumene solvent, thereby improving the alkaline washing efficiency. The separation and drainage component separates the alkaline solution and cumene solvent according to their density differences through multiple partitions and an electrically controlled drainage valve, which is convenient for operation. The inner ends of the alkaline solution inlet and the cumene solvent inlet of the feeding mechanism are tangential, which promotes uniform liquid distribution. Compared with the prior art, this alkaline washing tower can solve the problems of insufficient mixing and incomplete alkaline washing, effectively improve the alkaline washing efficiency of cumene products, and improve the quality of cumene products. It has important application value in cumene production.
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