Stirring fluorination electrolytic cell

Abstract

The invention discloses a stirring fluorination electrolytic cell which comprises a motor, a coupling, a stirring shaft, a shaft seal, an electrode mast, an electrode beam, an electrolytic cell, an electrolytic cell cover plate, an electrolytic cell jacket, a sleeve pipe, a blind plate, a guide drum, a stirring paddle and an insulating gasket. According to the invention, materials are dissolved and dispersed uniformly in the whole system, fluoridation is carried out in the electrolytic cell simultaneously, the reaction induction period is reduced to one day from 3-5 days, a cell blocking phenomenon is eliminated by and large, the frequency of cleaning the cell by treating cell blocking is reduced, the cell blocking phenomenon occurs 3-4 times per year in the prior art when the stirring cell is not used while the cell blocking phenomenon is avoided when the stirring cell provided by the invention is used, the material consumption is reduced by over 20%, the capacity in unit cell is improved by 30%, polymers generated in the electrolytic cell are reduced, the cell cleaning period is prolonged by one time, and the labor intensity in manually cleaning the cell is reduced.

Description

technical field [0001] The invention relates to the technical field of electrolytic cells for organic electrochemical synthesis, in particular to a stirring type fluorination electrolytic cell. Background technique [0002] Fluorine-containing organic compounds are rarely found in nature, and how to introduce fluorine into organic compounds has become an urgent problem to be solved. The preparation of organic fluorides can be done with F 2 Direct fluorination, also available with XeF 2 , Hypofluoric acid, high-valent metal fluorides, N2F compounds and other fluorinating reagents indirect fluorination method. These chemical fluorination methods are complex in reaction and operation, and require relatively harsh equipment; the fluorination reagents used are highly toxic or extremely unsafe, and some are very expensive; and it is difficult to control the amount of fluorine added, and it is difficult to obtain the target product. Therefore, people have to seek other methods. ...

AI Technical Summary

Problems solved by technology

However, the traditional electrolytic cell has the following disadvantages: the HF in the cell does not flow, and the electrolyte dissolved in the HF has a small contact with the plate, so the efficiency of the electrolytic fluorination reaction is low; the induction period of the reaction electrolytic fluorination reaction is long, generally 3 Days - 5 days, and the dead slot phenomenon is more frequent, after the voltage is applied, there is no current input

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