一种三氟氧磷制备用反应设备

By designing reaction equipment for the preparation of phosphorus oxyfluoride and adopting a gas-solid distribution and guiding mechanism to form a dynamic airflow field, the problem of continuous production of phosphorus pentoxide and anhydrous hydrogen fluoride was solved, and efficient and low-cost preparation of phosphorus oxyfluoride was achieved.

CN121669134BActive Publication Date: 2026-07-17FUJIAN DEXU NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIAN DEXU NEW MATERIALS CO LTD
Filing Date
2025-11-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve continuous production of phosphorus pentoxide and anhydrous hydrogen fluoride, resulting in high cost and low efficiency in the preparation of phosphorus oxyfluoride. Furthermore, fluidized bed towers are prone to phosphorus pentoxide agglomeration, which affects normal operation.

Method used

A reaction device for the preparation of phosphorus oxyfluoride is designed, which adopts a gas-solid distribution mechanism, a guiding mechanism, and a heat exchange mechanism. A dynamic airflow field is formed by the bidirectional rotation of the airflow distribution component and the rotation of the guide plate assembly, which breaks up the agglomeration of solid particles, improves the gas-solid contact efficiency, and achieves full heat exchange and separation through the spiral rising airflow.

Benefits of technology

The homogeneous reaction of phosphorus pentoxide and anhydrous hydrogen fluoride was achieved, reducing production costs, improving reaction efficiency, avoiding solid adhesion and temperature instability problems, and ensuring the efficient preparation of phosphorus trifluoride.

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Abstract

本发明涉及化工设备技术领域,特别涉及一种三氟氧磷制备用反应设备,包括:主体,内部由下至上依次具有进气腔体、反应腔体及分离腔体;气固分布机构,设置在进气腔体内,包括气流分布组件、分布驱动组件及固相分布孔板,气流分布组件内设有气流通道,气流通道的大小随气流分布组件的双向旋转进行周期性的变化;导向机构,包括整流栅板、导向板组及导向驱动组件,导向驱动组件带动导向板组旋转;换热机构,对应进气腔体、反应腔体及分离腔体环绕设置在主体的外沿;分离机构,设置在分离腔体内,对分离腔体内的气流进行固气分离。本发明能够通过连续性的固气反应,低成本且高效地获得三氟氧磷,具有良好的工业价值。
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