A kind of manganese dioxide electrolytic suspending agent
A manganese dioxide and suspending agent technology, applied in the field of electrolysis, can solve the problems of inconsistent electrolysis efficiency, difficult distribution of suspending agent, uneven suspending agent, etc., and achieve the effects of uniform current distribution, easy sinking and uniform distribution
Active Publication Date: 2016-05-18
DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND
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Problems solved by technology
Under high temperature conditions, affected by water pressure and the effect of steam from the bottom, the suspending agent is prone to unevenness in the solution. During electrolysis, the suspending agent in the lower part of the electrolytic cell is difficult to distribute, and only the middle The distribution of the suspending agent is only in the upper part, resulting in inconsistent electrolysis efficiency
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[0012] The present invention will be further described below by specific embodiment:
[0013] like figure 1 As shown, after the electrolytic suspending agent of the present invention is added to the electrolytic solution, the proportion of particles formed by manganese dioxide and trimanganese tetraoxide is greater than that of simple manganese dioxide or manganese tetraoxide particles, and because the molecules of trimanganese tetraoxide are heavier, it is easier to Sinking, the distribution in the electrolyte is more uniform, so that the current distribution is uniform, and the consistency of the electrolysis efficiency of each part of the product is improved.
[0014] The manganese dioxide electrolytic suspending agent of the present invention is composed of manganese dioxide and trimanganese tetraoxide. The present invention uses manganese dioxide and trimanganese tetroxide with a particle size of 20-100 μm to mix in a certain proportion, and passes through a bead mill (us...
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Abstract
The invention belongs to the electrolysis technology and in particular relates to a suspending agent which can be used for manganese dioxide electrolysis. The suspending agent for manganese dioxide electrolysis is formed by mixing and grinding manganese dioxide and manganous-manganic oxide, wherein a mass ratio of manganese dioxide to manganous-manganic oxide is 1:1-1:10; the particle size of the manganese dioxide and manganous-manganic oxide is 0.1-5um; the mixed concentration of the manganese dioxide and manganous-manganic oxide is 10-200mg / L. After the electrolytic suspending agent is added into electrolyte, the specific gravity of particles formed by the manganese dioxide and manganous-manganic oxide is greater than that of pure manganese dioxide particles or manganous-manganic oxide particles. Moreover, due to the heavy molecule, the manganous-manganic oxide easily sinks and is uniform in distribution in the electrolyte, so that the current distribution is uniform, and the consistency of the electrolytic efficiency on each part of the product is improved.
Description
technical field [0001] The invention belongs to the electrolysis technology, in particular to a suspending agent which can be used in the electrolysis of manganese dioxide. Background technique [0002] The discharge process of alkaline manganese battery is mainly controlled by reaction kinetics, so the microscopic pore characteristics of manganese dioxide have a decisive influence on the discharge process of the battery. Electrolytic suspending agent is an additive used to improve the dispersibility of the electrolyte to improve the effect of electrolysis. The type, shape, particle size and other characteristics of the electrolytic suspending agent have a significant impact on the pore characteristics and discharge performance of the electrolytic manganese dioxide. By using a new type of suspending agent, the physical and chemical properties and pore characteristics of the product can be improved, and it is possible to greatly improve the product. Heavy duty discharge perf...
Claims
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IPC IPC(8): C25B1/21
Inventor 陈南雄李同庆黎建新邓永光廖赞伟楚湘葵
Owner DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND