Device and method for preparing calcium hypochlorite, calcium chlorate and calcium perchlorate

Abstract

The invention relates to a device and method for preparing calcium hypochlorite, calcium chlorate and calcium perchlorate, relates to the technical field of chemical industry, and provides a device and method for resourceful treatment of wastewater. The device for preparing the calcium hypochlorite, the calcium chlorate and the calcium perchlorate comprises a first-stage electro-oxidation unit, asecond-stage electro-oxidation unit and a third-stage electro-oxidation unit, wherein different solutions are respectively electro-oxidized through the three stages of electro-oxidation units; the next stage of electro-oxidation unit is used for electro-oxidizing products of the previous stage of electro-oxidation unit to separately obtain a calcium hypochlorite solution, a calcium chlorate solution and a calcium perchlorate solution, and thus, a purpose of increasing the content of chlorine is achieved; and in addition, the calcium chloride raw materials in the invention are wide, and particularly, calcium chloride high-salt waste liquid generated in chemical production can be used as a raw material, so that resource utilization is further realized, and the problem of calcium chloride waste water discharge is solved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a preparation device and method for calcium hypochlorite, calcium chlorate and calcium perchlorate. Background technique [0002] There are three traditional calcium hypochlorite preparation processes, namely the method, the sodium process, and the hypochlorous acid process. However, the traditional preparation process generally has low available chlorine content, poor product stability, and high-salt waste liquid. The discharge further brings defects such as environmental problems, so an improved preparation device and process are needed to overcome the above problems. Contents of the invention [0003] The invention provides a preparation device and method for calcium hypochlorite, calcium chlorate and calcium perchlorate, which are used to solve the above technical problems. [0004] The present invention provides a kind of calcium hypochlorite, calcium chlorate, ...

AI Technical Summary

Problems solved by technology

[0002] There are three traditional calcium hypochlorite preparation processes, namely the method, the sodium process, and the hypochlorous acid process. However, the traditional preparation process generally has low available chlorine content, poor product stability, and high-salt waste liquid. discharge and then bring defects such as environmental problems, so an improved preparation device and process are needed to overcome the above problems

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