Synchronous production process for manganese metal and chlorine disinfectant through electrolytic cell

A production process and electrolytic cell technology, applied in the field of synchronous production process, can solve the problems of hovering around 75% and high DC power consumption, and achieve the effect of reducing energy consumption and improving energy utilization efficiency

Inactive Publication Date: 2016-07-06
WUHAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Among them, the current efficiency of selenium electrolysis has been hovering around 75%, and the DC power consumption is about 5700-6300kWh / t Mn; the current efficiency of selenium-free electrolysis is only about 50%, and the DC power consumption is as high as 7000-8000kWh / t Mn

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  • Synchronous production process for manganese metal and chlorine disinfectant through electrolytic cell

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Embodiment Construction

[0018] The solution of the present invention will be further described in detail below with reference to the examples, but this description will not constitute a limitation to the present invention.

[0019] The simultaneous production process of metal manganese and chlorine disinfectant is carried out by using an electrolytic cell, and the constant current electrolysis technology can be used to realize the simultaneous production of depositing metal manganese and generating chlorine disinfectant. The electrolytic cell includes a single unit electrolytic cell, and An anion exchange membrane 1 and a sealing gasket are arranged between the unit electrolyzers; wherein, the anion exchange membrane is a polyfluorovinyl or polysulfone-based homogeneous anion exchange membrane with high conductivity; the inner end of the unit electrolyzer The mesh anode 2 and the plate cathode 3 are alternately arranged, which are called the anode chamber 8 and the cathode chamber 9, respectively. The me...

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Abstract

The invention relates to a synchronous production process for manganese metal and a chlorine disinfectant through an electrolytic cell. A constant-current electrolysis technology is adopted, and therefore synchronous production of manganese metal deposition and chlorine disinfectant generation can be achieved. The electrolytic cell comprises a plurality of unit electrolytic cell bodies, and anion-exchange membranes and sealing gaskets are arranged between the unit electrolytic cell bodies. The synchronous production process has the beneficial effects that due to the fact that the anion-exchange membranes are used, it is guaranteed that needed products can be prepared by synchronously using cathode currents and anode currents; and in addition, the purity of cathode and anode products can reach the industrial standard, and the efficiency of energy utilization is greatly improved. As for the electrolytic manganese industry, it means that the energy consumption of the synchronous production process is reduced by more than one time.

Description

Technical field [0001] The invention relates to a simultaneous production process of metal manganese and chlorine disinfectant using an electrolytic cell. Background technique [0002] Since the United States Bureau of Mines proposed the diaphragm electrolysis method to produce metal manganese in 1920. Neutral MnSO has been adopted all over the world 4 -NH 4 SO 4 -H 2 O-series electrolyte is produced by diaphragm electrolysis. After repeated research and industrial optimization, at present, the electrolysis production control conditions of most enterprises are: tank temperature 35-48℃, (NH 4 ) 2 SO 4 Concentration (130±20)g / L, current density 330-380A / m 2 , The manganese concentration in the bath is 15-20g / L, the manganese concentration in the incoming liquid is 35-40g / L, and the pH of the incoming liquid is controlled at about 6.8. Among them, the current efficiency of selenium electrolysis has been hovering around 75%, and the DC power consumption is about 5700-6300kWh / t·Mn; t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/10C25B1/26C25C7/00C25B13/00
CPCC25B1/26C25B13/00C25C1/10C25C7/00Y02P20/10Y02P20/20
Inventor 朱华郑凡毛旭辉汪的华
Owner WUHAN UNIV
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