Membrane electrodeposition tank for refining metal chlorides

The utility model provides a membrane electrodeposition tank for refining metal chlorides. The membrane electrodeposition tank comprises a tank body, an anode, a cathode, an anode chamber circulation pipeline, a middle separation chamber circulation pipeline and a cathode chamber circulation pipeline, wherein the tank body consists of an anode chamber, a middle separation chamber and a cathode chamber which are adjacent to one another from left to right, the anode chamber and the middle separation chamber are separated from each other by a cation selective diaphragm, the middle separation chamber and the cathode chamber are separated from each other by an anion selective diaphragm, the anode chamber contains anolyte, the middle separation chamber contains hydrochloric acid liquid, the cathode chamber contains catholyte, and the anode chamber circulation pipeline, the middle separation chamber circulation pipeline and the cathode chamber circulation pipeline are correspondingly connected to the tops and bottom