一种六氟磷酸锂反应装置及工艺

By designing a degassing and ripening unit and a multi-stage stirring reaction unit in the lithium hexafluorophosphate reactor, and utilizing a disc turbine propeller to shear the gas phase, the problems of low gas-liquid contact efficiency and high equipment complexity in the existing technology are solved, achieving efficient gas-liquid contact and a simplified operation process.

CN117299047BActive Publication Date: 2026-07-17ZHEJIANG INST OF TIANJIN UNIV (SHAOXING)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG INST OF TIANJIN UNIV (SHAOXING)
Filing Date
2023-10-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing lithium hexafluorophosphate production process has problems such as a large number of equipment, low reactor utilization, complex pipeline connections, and high difficulty in equipment operation and maintenance. In particular, the gas-liquid contact efficiency is low and bubble aggregation is easy to occur in multi-stage series reactors.

Method used

A lithium hexafluorophosphate reactor is used, which includes a reactor body, a degassing and ripening unit and multiple stirring reaction units. Each stirring reaction unit is equipped with a multi-stage stirrer and a gas distributor, which are connected by stage partitions and gas lift channels. The gas phase is sheared by straight or oblique blade disk turbines to ensure gas-liquid countercurrent contact, and the gas-liquid contact efficiency is improved by controlling the gas distribution and stirring speed.

Benefits of technology

This technology enables multi-stage countercurrent gas-liquid contact within a single reactor, improving gas-liquid contact efficiency, reducing system complexity and operational difficulty, enhancing reactor utilization, and preventing a decrease in contact efficiency caused by bubble coalescence.

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Abstract

本发明公开了一种六氟磷酸锂反应装置及工艺,所述六氟磷酸锂反应装置包括反应器主体、设置于反应器主体内的脱气熟化单元以及位于所述反应器主体内且设置于所述脱气熟化单元上方的多个搅拌反应单元,每一个所述搅拌反应单元内均设置有多级搅拌器和气体分布器,每一个所述气体分布器均分别连接至气体进料管道;相邻的脱气熟化和搅拌反应单元之间及相邻的搅拌反应单元之间均设有级间隔板,所述级间隔板上设有降液通道和气升通道。本发明的六氟磷酸锂反应装置可在单个反应装置内实现多级气液逆流接触,大幅降低多级反应系统的复杂程度;同时,可通过多级搅拌器保证反应单元内气相始终被剪切成小气泡,提高气液接触效率,提高反应器利用率。
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