Large single crystal electrolytic refining device

Abstract

The invention discloses a large single crystal electrolytic refining device. The large single crystal electrolytic refining device comprises an electrolytic cell, and the outside of both ends of the top of the electrolytic cell is provided with an arranging table, which is provided with, sequentially in the length direction, anode copper bars and cathode copper bars; the anode copper bars and thecathode copper bars are connected to both ends of a power supply, a plurality of bearing tables are arranged horizontally in parallel between the anode copper bars and the cathode copper bars and connected with an electrolytic module through a plurality of fixing units; the electrolytic module comprises iron plates and graphite plates, which are sequentially alternately arranged under the bearingtables; insulating plates are arranged at the connected parts between the bearing tables connected with the iron plates and the cathode copper bars as well as the connected parts between the bearing tables connected with the graphite plates and the anode copper bars. By providing electrolytic current through a rectifier and electrolyzing large single crystal synthesized blocks in electrolytes, thelarge single crystal electrolytic refining device achieves the aim of large single crystal purification, greatly reduces acid consumption and effectively protects the environment, and by separating out and recycling heavy metal as resource through anode iron plates, reduces heavy metal pollution.

Description

technical field [0001] The invention relates to the technical field of large single crystal purification, in particular to a large single crystal electrolytic purification device. Background technique [0002] It is currently known that for the purification of industrial large single crystals, high-concentration pickling technology is generally used, mainly by mixing hydrochloric acid, sulfuric acid and nitric acid in an appropriate proportion to corrode the catalyst, so that large single crystals fall off from the catalyst to achieve removal. purpose of purification. On the one hand, this process requires repeated pickling-elaching-pickling and other processes during the reaction process between metal and strong acid, resulting in a lot of waste of strong acid, and at the same time, consumes materials and labor. On the other hand, during the treatment process of this pickling method, the contact of concentrated acid and water will produce a large amount of acid mist. Since...

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Problems solved by technology

On the one hand, in the reaction process of metal and strong acid, this process requires repeated pickling-elaching-pickling and other processes, resulting in a lot of waste of strong acid, and at the same time, consumes materials and labor.

On the other hand, during the treatment process of this pickling method, the contact of concentrated acid and water will produce a large amount of acid mist. Since the acid mist is not easy to absorb and handle, it will cause serious harm to the operator, and even cause burn accidents. Serious pollution to the production environment and the atmospheric environment

In addition, the waste liquid in the late stage of the acid reaction needs to be neutralized with strong alkali sodium hydroxide. At the same time, the discharged heavy metals need to be recovered through special technical treatment, which causes a lot of waste of resources and increases production costs.

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