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Electrolytic manganese solution containing new additive, and preparation method and application thereof

A preparation method, the technology of electrolytic manganese, applied in the direction of photography technology, instrument, photography auxiliary technology, etc., can solve the problems of no practical application, increase of operating cost, reduction of current density, etc., to achieve easy supplement and preparation, meet the needs of industrialization, capacitance The effect of density reduction

Inactive Publication Date: 2012-06-13
KAILI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these additives or compound additives are complex in composition, and their excellent performance is greatly affected by environmental factors. There are always some problems in actual production, such as low current efficiency, high energy consumption, low output, unstable production, and increased operating costs. , so none of them have achieved industrialized production, and the domestic electrolytic manganese production technology is still in a situation of almost completely relying on Europe and Japan to import expensive selenium dioxide to implement electrolytic manganese production.
The latest experimental research found that the use of selenium-free electrolytic manganese additive (TJA-TJD) can make the crystal form of electrolytic manganese products change rapidly and reduce the current density
Under optimized conditions, the proper use of electrode membranes and additives can reduce the DC power consumption of electrolytic manganese to 4779kW.h / t. Using ionic liquids as electrolytic metal manganese liquids can improve electrical conductivity and chemical stability. immature for practical application

Method used

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  • Electrolytic manganese solution containing new additive, and preparation method and application thereof
  • Electrolytic manganese solution containing new additive, and preparation method and application thereof
  • Electrolytic manganese solution containing new additive, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Sodium benzenesulfonate is used as the electrolytic manganese liquid additive product to prepare according to the following raw material ratio and method (g / L): sodium benzenesulfonate 25~90 mg / L, manganese sulfate concentration 7~35g / L, ammonium sulfate concentration 68~120g / L, adjust the pH value with ammonia water or sodium hydroxide to make the pH value = 5.0~8.3, and prepare selenium-free electrolytic manganese liquid products. Its best preparation raw materials and high-purity electrolytic manganese preparation method: sodium benzenesulfonate 40~45mg / L, manganese sulfate 11~12g / L, ammonium sulfate 80~85g / L, pH=7.0~7.2. The present invention involves using sodium benzenesulfonate as the electrolytic manganese liquid additive product and the high-purity electrolytic metal manganese product obtained by producing it in process control conditions, which can be widely used in the iron and steel industry, aluminum alloy industry, magnetic material industry, Aerospace ind...

Embodiment 2

[0027] The composition of the selenium-free electrolytic manganese liquid product used is blended with other additives and the implementation process conditions are as follows:

[0028]

[0029] The result is as follows:

[0030]

[0031] It can be seen from the results of the examples that the addition of selenium dioxide (experiment 6), sodium sulfite (experiment 5) and ammonium sulfite (experiment 4) all reduced the purity of the electrolytic manganese product, and the addition of hydroquinone (experiment 7) and dodecylbenzene Sodium sulfonate (experiment 8) can obtain high-purity electrolytic manganese products, but the current efficiency is reduced.

Embodiment 3

[0033] The selenium-free electrolytic manganese liquid product that the example of the present invention adopts forms and implements production process control condition as follows:

[0034]

[0035] The results obtained are as follows:

[0036]

[0037] It can be seen from the example results that the results of Experiment 11 are relatively ideal, with both high-purity electrolytic manganese products and high current efficiency.

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PUM

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Abstract

The invention discloses an electrolytic manganese solution containing a new additive, and preparation method and application thereof, and belongs to the technical field of physical chemistry. The electrolytic manganese solution containing the new additive is characterized by adding an additive of benzene sulfonic acid sodium salt into the prior electrolytic manganese solution which contains manganese sulfate, ammonium sulfate and water, thereby replacing toxic selenium dioxide or sulfur dioxide added in the traditional electrolytic manganese solution, and preparing the electrolytic manganese solution containing the benzene sulfonic acid sodium salt, wherein, in the electrolytic manganese solution, the concentration of the benzene sulfonic acid sodium salt is 25-90 mg / L, the concentration of sodium sulfate is 7-35 g / L, the concentration of ammonium sulfate is 68-120 g / L, and the pH is 5.0 to 8.3. The electrolytic manganese solution containing the additive of sulfonic acid sodium salt can be applied to producing electrolytic manganese with purity as high as 99.90% to 99.98%.

Description

technical field [0001] The invention relates to an electrolytic manganese solution containing a new additive and its preparation method and application, which belong to the technical field of physical chemistry and relate to replacing the commonly used toxic selenium dioxide or sulfur dioxide additives with sodium benzenesulfonate in the electrolytic manganese solution to prepare a benzene-containing The electrolytic manganese solution with sodium sulfonate additive is implemented to produce electrolytic manganese to obtain high-purity electrolytic manganese products. Background technique [0002] The electrolytic additives used in the electrolytic manganese production industry are mainly selenium dioxide, sulfur dioxide and their composite additives. Most foreign electrolytic manganese factories use sulfur dioxide additives or compound additives based on sulfur dioxide to produce electrolytic manganese. The products do not contain selenium, and their purity is greater than ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/10
Inventor 刘少友骆晨燕邓德义唐文华
Owner KAILI UNIV
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