单膜双室同槽电解金属锰联产EMD离子的传输机理研究

doi:10.11896/cldb.20070207

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Abstract In view of the many drawbacks in the traditional cloth-type membrane bag electrolysis technology process,a single-membrane double-chamber membrane electrolysis process was proposed, using MnSO₄+(NH₄)₂SO₄ as the electrolyte system to realize co-production of electroly-tic manganese dioxide at the anode while producing manganese at the cathode,and recover sulfuric acid in the anode chamber. By measuring the changes of the ion components in the cathode and anode chambers, the ion transmission behavior in the electrolysis process is analyzed in depth to verify the technical feasibility of the single-membrane double-chamber electrolysis with the same tank. The experimental results show that the single-membrane double-chamber electrolysis method can effectively realize the electrolytic production of manganese dioxide in parallel with the electrodeposition of metal manganese, and at the same time recover sulfuric acid at the anode. The sulfuric acid concentration reaches 1.5 mol/L, which meets the front-end manganese ore acid leaching process requirements,promote the efficient recycling of resources.The cathode manganese production rate and anodic acid recovery rate using TRJAM-10W anion exchange membrane are the highest, reaching 77.0% and 64.3%, respectively, while the anode EMD production rate of Ionsep-HC anion exchange membrane is the highest at 27.3%. TRJAM-10W anion exchange membrane has the lowest cell voltage of 4.43 V, and its electrical energy consumption is also the lowest at 5 607 kW·h·t^-1.

Key words： single membrane double chamber manganese electrolytic manganese dioxide ion transport

Published: 30 September 2021

CLC number:

TF792

Fund:This work was financially supported by the Ningxia Hui Autonomous Region Key R & D Program Key Project(2020BDE92023),the Gansu Province Higher Education Research Project(2020A-040,2020C-38),the National Natural Science Foundation of China (21466019).

About author:: Xiaosan Song is an associate professor and master supervisor of Lanzhou Jiaotong University. He is mainly engaged in teaching and research in municipal enginee-ring and pollution control engineering. Presided over 2 projects of the Gansu Provincial Department of Science and Technology, 2 horizontal projects, participated in the National Science and Technology Support Program Project, the National Natural Science Foundation Project, the Water Pollution Control and Treatment Technology Major Special Project, the Gansu Provincial Science and Technology Department, the Construction Department, the Education Department and many other scientific research projects published more than 10 research papers; won 2 provincial and ministerial-level science and technology awards, 4 department-level science and technology awards; 6 invention and utility model patents; participated in the compilation and publication of 2 textbooks.

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	SONG Xiaosan
	ZHENG Yangyang
	WANG Sanfan
	ZHANG Zhihua
	SONG Zhengping
	MA Lin

Cite this article:

SONG Xiaosan,ZHENG Yangyang,WANG Sanfan, et al. Study on EMD Ion Transport Mechanism of Co-production of Electrolytic Manganese with Single Membrane and Two Chambers[J]. Materials Reports, 2021, 35(18): 18141-18145.

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http://www.mater-rep.com/EN/10.11896/cldb.20070207 OR http://www.mater-rep.com/EN/Y2021/V35/I18/18141

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