Comprehensive recycling method for leaching residues in electrolytic manganese metal production

A technology for electrolytic manganese metal and leaching slag, which is applied in the direction of manganese compounds, non-metallic elements, chemical instruments and methods, etc., and can solve the problems of wasting useful resources of slag and not being able to effectively recover

Inactive Publication Date: 2015-12-16
赵阳臣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method does not effectively recycle other useful components in...

Method used

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  • Comprehensive recycling method for leaching residues in electrolytic manganese metal production
  • Comprehensive recycling method for leaching residues in electrolytic manganese metal production
  • Comprehensive recycling method for leaching residues in electrolytic manganese metal production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] 1. Select 1000Kg of electrolytic manganese metal leaching slag from Daxin Manganese Industry Co., Ltd. of CITIC Dameng Daxin Branch, and its main element content is shown in Table 1

[0100] Table 1 Contents of main elements in leaching slag

[0101]

[0102] 2. Scrap iron powder was purchased from an iron powder factory in Guangdong, and the Fe content was 88%;

[0103] 3. Phosphate rock powder was purchased from a phosphate mine in Yunnan, and its main element content is shown in Table 2:

[0104] Table 2 Contents of main elements in phosphate rock powder

[0105]

[0106] 4. Industrial-grade concentrated sulfuric acid, purchased from a sulfuric acid factory in Nanning, with a concentration of 98%;

[0107] 5. Industrial grade ammonia water, purchased from a chemical factory in Nanning, with a concentration of 25%;

[0108] 6. Agricultural grade ammonium bicarbonate, purchased from a nitrogen fertilizer factory in Nanning, with a content of 99.2%;

[0109]...

Embodiment 2

[0139] 1. Select 1500Kg of electrolytic metal manganese leaching slag from Daxin Manganese Industry Co., Ltd. of CITIC Dameng Daxin Branch, and its main element content is shown in Table 1

[0140] Table 1 Contents of main elements in leaching slag

[0141]

[0142] 2. Scrap iron powder was purchased from an iron powder factory in Guangdong, and the Fe content was 88%;

[0143] 3. Phosphate rock powder was purchased from a phosphate mine in Yunnan, and its main element content is shown in Table 2:

[0144] Table 2 Contents of main elements in phosphate rock powder

[0145]

[0146] 4. Industrial-grade concentrated sulfuric acid, purchased from a sulfuric acid factory in Nanning, with a concentration of 98%;

[0147] 5. Industrial grade ammonia water, purchased from a chemical factory in Nanning, with a concentration of 25%;

[0148] 6. Agricultural grade ammonium bicarbonate, purchased from a nitrogen fertilizer factory in Nanning, with a content of 99.2%;

[0149]...

Embodiment 3

[0179] 1. Select 1000Kg of electrolytic manganese leaching slag from Sanmanganlong Manganese Industry Co., Ltd., Daxin County, Guangxi, and its main element content is shown in Table 1

[0180] Table 1 Contents of main elements in leaching slag

[0181]

[0182] 2. Scrap iron powder was purchased from an iron powder factory in Guangdong, and the Fe content was 88%;

[0183] 3. Phosphate rock powder was purchased from a phosphate mine in Yunnan, and its main element content is shown in Table 2:

[0184] Table 2 Contents of main elements in phosphate rock powder

[0185]

[0186] 4. Industrial-grade concentrated sulfuric acid, purchased from a sulfuric acid factory in Nanning, with a concentration of 98%;

[0187] 5. Industrial grade ammonia water, purchased from a chemical factory in Nanning, with a concentration of 25%;

[0188] 6. Agricultural grade ammonium bicarbonate, purchased from a nitrogen fertilizer factory in Nanning, with a content of 99.2%;

[0189] 7. ...

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Abstract

A comprehensive recycling method for leaching residues in electrolytic manganese metal production concretely includes the steps that 1, a compound fertilizer substrate is prepared; 2, ferric phosphate powder is recycled; 3, copper-cobalt-nickel precious metal mineral powder is recycled; 4, gypsum powder is recycled; 5, high-purity manganese carbonate ore is prepared; 6, magnesium ammonium phosphate slow-release compound fertilizer is prepared. Iron, manganese and other resources in the leaching residues can be effectively recycled, and a certain amount of non-completely-dissolved manganese carbonate ore and manganese dioxide ore and precipitated ferric hydroxide and copper, cobalt and nickel precious metal sulfide ore contained in the leaching residues in electrolytic manganese metal production and Mn2+, NH4+ and other valuable substances can be recycled comprehensively and systematically, wherein the valuable substances are separated along with residue water; in this way, the effects of entire and comprehensive recycling and zero discharge are achieved, and the method has quite important meaning for energy conservation, emission reduction and environment pollution treatment in the electrolytic manganese metal industry.

Description

technical field [0001] The invention belongs to the technology of comprehensive utilization of waste slag, in particular to the comprehensive recovery and utilization of leached slag produced in the production process of electrolytic metal manganese to achieve zero discharge. Background technique [0002] The production process of electrolytic manganese metal is mostly using manganese ore or pyrolusite (roasting powder) → acid leaching (sulfuric acid) → adding ammonia water to remove iron → adding vulcanizing agent to remove heavy metals → standing to remove calcium and magnesium → qualified manganese sulfate solution → electrolytic cell → Metal manganese flakes. The raw materials used are: MnCO 3 Mineral powder, MnO 2 Mineral powder, sulfuric acid H 2 SO 4 , Ammonia NH 3 ·H 2 O, sodium formazine S.D.D, selenium dioxide, ammonium sulfate, etc., so the leaching residue contains a certain amount of insoluble and complete manganese carbonate ore and manganese dioxide ore,...

Claims

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Application Information

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IPC IPC(8): C01B25/37C05G1/00C22B7/00C01F11/46C01G45/00C05B21/00
CPCY02P10/20
Inventor 赵阳臣
Owner 赵阳臣
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