Organic additive for electrolytic manganese production and preparation method thereof

An organic additive, electrolytic manganese technology, which is applied in the direction of photographic technology, instruments, photographic auxiliary technology, etc., can solve the problems of not finding high-efficiency selenium-free electrolytic manganese additives, high selenium content, and high price, and achieves less species and low impurity content. , the effect of high manganese content

Inactive Publication Date: 2010-06-02
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the use of selenium dioxide additive also has following three problems: (1) selenium dioxide additive can only produce low-purity common electrolytic manganese product (content 99.8% of manganese); (2) selenium content is high in the electrolytic manganese product ( The content of selenium is more than 0.07%); (3) selenium dioxide is highly poisonous, pollutes seriously, and the price is high
However, no high-efficiency selenium-free electrolytic manganese additives that can be used in industrial production have been found

Method used

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  • Organic additive for electrolytic manganese production and preparation method thereof
  • Organic additive for electrolytic manganese production and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An organic additive used in the production of electrolytic manganese, the weight percentage of each raw material is shown in Table 1.

[0028] Table 1

[0029] components

name

Weight (g)

% by weight %

Remark

polyacrylamide

Non-ionic

1

1

Molecular weight 25 million

Acetate

Ammonium acetate

2

2

Analytical pure

Auxiliary

potassium phosphate

7

7

Analytical pure

water

distilled water

90

90

[0030] Above-mentioned a kind of preparation method for the organic additive of electrolytic manganese production, it comprises the steps:

[0031] 1), raw material selection: select each raw material according to Table 1;

[0032] 2) First, add polyacrylamide and water into the reaction tank, and stir for 30 minutes at 40°C; then add additives potassium phosphate and ammonium acetate, stir for 3 hours, and cool to room temperature; After the amide swells completely, stir...

Embodiment 2

[0037] An organic additive used in the production of electrolytic manganese, the weight percentage of each raw material is shown in Table 3.

[0038] table 3

[0039] components

name

Weight (g)

% by weight %

Remark

polyacrylamide

Non-ionic

2

2

Molecular weight 16 million

Acetate

Sodium acetate

4

4

Analytical pure

Auxiliary

ammonium phosphate

5

5

Analytical pure

[0040] components

name

Weight (g)

% by weight %

Remark

water

tap water

89

89

[0041] Above-mentioned a kind of preparation method for the organic additive of electrolytic manganese production, it comprises the steps:

[0042] 1), raw material selection: select each raw material according to table 3;

[0043] 2) First, add polyacrylamide and water into the reaction tank, and stir for 40 minutes at 42°C; then add additives such as ammonium phosphate and sodium acetate, st...

Embodiment 3

[0048] An organic additive used in the production of electrolytic manganese, the weight percentage of each raw material is shown in Table 5.

[0049] table 5

[0050] components

name

Weight (g)

% by weight %

Remark

polyacrylamide

Non-ionic

2

2

Molecular weight 8 million

Acetate

calcium acetate

5

5

Analytical pure

Auxiliary

ammonium phosphate

10

10

Analytical pure

water

tap water

83

83

[0051] Above-mentioned a kind of preparation method for the organic additive of electrolytic manganese production, it comprises the steps:

[0052] 1), raw material selection: select each raw material according to Table 5;

[0053] 2) First, add polyacrylamide and water into the reaction tank, and stir for 60 minutes at 45°C; then add additives such as ammonium phosphate and calcium acetate, stir for 3 hours, and cool to room temperature; After the amide swelling is complete, stir...

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PUM

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Abstract

The invention relates to an organic additive without selenium dioxide for electrolytic manganese production and a preparation method thereof. The organic additive for electrolytic manganese production is characterized by being prepared from the following raw materials by the weight percentage: 1%-2% of polyacrylamide, 2%-5% of acetate, 5%-13% of auxiliary agent and 80%-92% of water, and the sum of the weight percentage of each raw material is 100%. The organic additive does not contain selenium dioxide, can replace the existing selenium dioxide to be used for electrolytic manganese production, and has the advantages of environment protection, no poison, simple technology and the like. By using the additive, the electrolytic efficiency is high. The content of selenium impurities in the product is low, and the product quality is high.

Description

technical field [0001] The invention relates to a selenium dioxide-free electrolytic additive for electrolytic manganese production and a preparation method thereof. Background technique [0002] Electrolytic manganese is a pure manganese sulfate solution prepared by combining manganese ore with sulfuric acid, then adding additives and sending it to an electrolytic cell to electrolyze the elemental metal. After nearly half a century of development, my country has become the largest producer, consumer and exporter of electrolytic manganese in the world. There is a saying in the iron and steel industry that "no manganese can't make steel". As a metallurgical and chemical raw material, electrolytic manganese has a very important strategic position in the national economy. [0003] As early as 1923, Allmand and Campbell used a diaphragm electrolyzer to electrodeposit metal manganese from an electrolyte containing manganese sulfate and ammonium sulfate. However, it was not until...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/10
Inventor 杨超田熙科田熙学皮振邦王焰新田熙文
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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