A system for preparing high purity octaphenylcyclotetrasiloxane

The integrated preparation system enables continuous and integrated operation of hydrolysis, filtration, washing and drying in the preparation of octaphenylcyclotetrasiloxane, solving the problems of impurity contamination caused by material transfer and single equipment function in traditional processes, and improving product purity and production safety.

CN122321752APending Publication Date: 2026-07-03SHAANXI DEXINXIANG SPECIAL MATERIALS TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI DEXINXIANG SPECIAL MATERIALS TECH CO LTD
Filing Date
2026-03-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the existing octaphenylcyclotetrasiloxane preparation process, the frequent transfer of materials between different equipment leads to a high risk of introducing external impurities, solvent evaporation, and human error. In addition, the equipment has a single function, making it difficult to achieve efficient mixing, filtration, and drying.

Method used

Design an integrated preparation system including a mixing reactor, a catalytic reactor, a dissolving device, a filtering device, and a rotary drying device. Through a liftable stirring shaft, forced-drive stirring blades, and an adaptive elastic panel, it realizes the integrated operation of hydrolysis, filtration, water washing, and vacuum drying.

Benefits of technology

It reduces the risk of contamination and solvent loss during material transfer, improves product purity and production safety, enhances mixing efficiency and equipment reliability, and ensures the preparation of high-purity octaphenylcyclotetrasiloxane.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122321752A_ABST
    Figure CN122321752A_ABST
Patent Text Reader

Abstract

This invention relates to the field of octaphenylcyclotetrasiloxane preparation technology and discloses a system for preparing high-purity octaphenylcyclotetrasiloxane. The system includes a mixing reactor with a filter plate fixedly installed at the bottom. Multiple pipes are installed on the mixing reactor, and a power source is installed at the top. A rotating shaft is fixedly installed at the output end of the power source, and a stirring shaft is mounted on the rotating shaft. Multiple positioning sleeves are mounted on the stirring shaft, one of which is close to the filter plate. Multiple stirring blades are mounted on each positioning sleeve. This system for preparing high-purity octaphenylcyclotetrasiloxane achieves integrated continuous operation of the entire process of hydrolysis, filtration, washing, and vacuum drying of diphenylsilanediol intermediates through the mixing reactor, filter plate, stirring shaft, positioning sleeves, and stirring blades. This completely avoids the frequent transfer and exposure of materials between different devices in traditional processes, greatly reducing the risks of introducing external impurities, solvent evaporation, and human error.
Need to check novelty before this filing date? Find Prior Art