CN1724697A - Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore - Google Patents
Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore Download PDFInfo
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- CN1724697A CN1724697A CN 200410045058 CN200410045058A CN1724697A CN 1724697 A CN1724697 A CN 1724697A CN 200410045058 CN200410045058 CN 200410045058 CN 200410045058 A CN200410045058 A CN 200410045058A CN 1724697 A CN1724697 A CN 1724697A
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- leach
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Abstract
The invention relates to a method to make electrolysis manganese metal by titan white spent acid and manganese dioxide mine. The feature is that it uses the H2SO4 and Fe2+ in the titan white spent acid as assistant material, adds manganese dioxide mine and sulfur iron ore to make electrolysis manganese metal. The invention solves the environment pollution problem caused by titan white spent acid. The electrolysis manganese metal has high quality and reaches the YB/T051-2003DJMnA high purity production standard.
Description
Technical field:
The invention belongs to the extraction of metallurgical chemistry field manganese, especially utilize titanium white waste acid and dioxide ore for manganese to produce the method for electrolytic metal Mn.
Background technology:
At present China has the factory of tame sulfuric acid method titanium pigment more than 60, nearly 600,000 tons of annual output titanium dioxide.1 ton of titanium dioxide output of every production contains about 6～8 tons of spent acid of 20% sulfuric acid concentration, and about more than 400 ten thousand tons of annual national titanium white waste acid is amounted to 100%H
2SO
4More than 200 ton is not still had good comprehensive and utilizes method to handle.Many titanium powder plants have only the spent acid that will produce with the discharging of in the lime and back, cause the waste of sour resource and serious environmental to pollute.
Summary of the invention:
The objective of the invention is:, from the source, thoroughly solve the problem of environmental pollution that titanium white waste acid causes in order to fully utilize sulfuric acid and ferrous ion in the titanium white waste acid.Development output electrolytic metal manganese product, and by-product manganous carbonate and ammonium sulfate.Turn waste into wealth, have remarkable economic efficiency, social benefit and environmental benefit.
Technical scheme of the present invention is: utilize the H in the titanium white waste acid
2SO
4With Fe
2+Be subsidiary material, add dioxide ore for manganese and sulfurous iron ore and produce electrolytic metal Mn:
1. leach and deironing
Leaching is carried out in the circular mechanical agitating tank of 6m * 5.0m, leaches beginning acid concentration 55.6kg/m
3, 90 ℃～95 ℃ of extraction temperatures, extraction time 2.5h, Fe time 1～2h is sunk in oxidation, and the rate of removing of Fe is more than 99%, and the Mn leaching yield is greater than 95%;
Leach titanium white waste acid consumption 77.90m
3/ d, and add manganese electrolytic anode liquid 460m
3/ d, slag washing water 206m
3/ d;
According to the experimental study result, every input 1m
3The titanium white waste liquid adds Manganse Dioxide breeze 860kg, drops into pyrite 220kg, MnO
2Ore deposit: pyrite=1: 0.26;
Leaching adds thermal recovery steam direct heating, and the leaching vat slurry temperature is not less than 90 ℃;
Leach terminal point pH6.0～6.2, adding ammoniacal liquor neutralized in former groove after terminal point was leached in arrival, made pH values of pulp reach 6.5～6.6, at this moment Fe
3+Complete hydrolysis becomes Fe (OH)
3Precipitation, iron time 1～2h is sunk in oxidation;
2. vulcanize removing heavy metals
Add a large amount of MnO owing to leach
2The ore deposit makes leach liquor contain Co up to 60mg/L, and Ni90mg/L is higher more than 10 times than conventional manganese leach liquor Co, Ni, so adopt three sections sulfide precipitation method of purification removing heavy metals:
Sulfuration purifies to be carried out in mechanical agitating tank, and adding vulcanizing agent Fu Meina (S.D.D) makes the heavy metal ion Cu in the filtration
2+, Cd
2+, Co
2+, Ni
2+, Zn
2+Remove Deng impurity reaction generation sulfide precipitation;
50～60 ℃ of curing temperatures, curing time 1h;
The sulfuration back uses chamber filter press to filter, and filtrate is flow automatically into leaving standstill the pond;
Qualifying liquid pumps into header tank, uses for the manganese electrolysis;
3. manganese electrolysis
The employing stainless steel plate is a negative electrode, and selecting lead base antimony tin silver quad alloy plate for use is anode.
On negative electrode, separate out Mn, on anode, emit O
2↑, generation simultaneously contains H
2SO
4Waste electrolyte; The waste electrolyte quantum of output is for adding 98% of qualified liquid measure, and waste electrolyte partly turns back to leach and uses, and part is sent neutralization and heavy Mn, and output manganous carbonate and ammonium sulfate make acid, the Mn of system
2+, (NH
4)
2SO
4With the liquor capacity balance.
Electrolysis is to have diaphragm bag to carry out with having in the false sill system electrolyzer;
Electrolytic technical qualification are as follows:
Qualifying liquid contains Mn 38kg/m
3, pH6.8～7.2;
Contain (NH
4)
2SO
4100～110kg/m
3
Anolyte contains Mn 15kg/m
3, contain H
2SO
441kg/m
3
36～40 ℃ of electrolysis temperatures;
Cathode current density 350～380A/m
2
Anodic current density 600～660A/m
2
Bath voltage 4.2～4.8V;
Similar poles are apart from 80mm;
Separate out cycle 24h;
4. anolyte neutralizes and reclaims manganous carbonate and ammonium sulfate
Add in the ammoniacal liquor and the acid of anolyte, add bicarbonate of ammonia output manganous carbonate precipitation again, after filtering manganese carbonate product; Filtrate contains (NH
4)
2SO
4Be elevated to 192kg/m
3, adopt the moisture in the steam indirect heating evaporation filtered liquid, further concentrate (NH
4)
2SO
4Solution; As (NH
4)
2SO
3Concentration reaches 360kg/m
3The time, put into crystallizer tank blowing cooling, having under the situation of crystal seed slowly, crystallization goes out solid (NH
4)
2SO
4Draw (NH after the filtration
4)
2SO
4Product; Filtrate is mother liquor, in returning and operation.
Advantage of the present invention and unusual effect are:
1. initiative utilizes the spent acid of titanium white production output to add MnO for auxiliary material
2Ore deposit and FeS
2, produce electrolytic metal manganese product and attached product manganous carbonate, ammonium sulfate product achieving success, solved the problem of environmental pollution that titanium white waste acid causes.
2. the present invention's leaching on average contains Fe 0.7mg/L except that Fe liquid, Mn 57.9g/L, and the pickling slag contains Mn 2.98%, Mn leaching yield＞95%, it is good that leaching removes the Fe strainability, obtained the ideal effect.
3. the present invention is owing to add a large amount of MnO
2The ore deposit brings the leaching filtered liquid to contain Co60mg/L, and Ni 90%, leaches MnCO than routine
3Ore deposit Co, Ni content exceed more than 10 times; Adopt three sections purifications to solve and remove high Co, Ni content exceeds more than 10 times; Adopt three sections purifications to solve a difficult problem of removing high Co, Ni content, purify back liquid Ni＜1mg/L, Co＜1mg/L.
4. the electrolytic metal Mn quality product height produced of the present invention: Mn 99.97%, C0.0090%, and S 0.017%, and P 0.0006%, and Si 0.0005, and Se 0.0005, and Fe 0.006, reaches high-purity grade of product standard of YB/T051-2003 DJMnA.The manganous carbonate and the ammonium sulfate of institute's output all reach technical grade product.
5. the present invention handles titanium white waste acid and produces electrolytic metal Mn, has remarkable economic efficiency, social benefit and environmental benefit.
Description of drawings:
Fig. 1: titanium white waste acid is produced the electrolytic metal Mn process flow sheet.
Embodiment:
Fig. 1 has described titanium white waste acid and has produced the electrolytic metal Mn technical process, utilizes the H in the titanium white waste acid
2SO
4With Fe
2+Be subsidiary material, add dioxide ore for manganese and sulfurous iron ore and produce electrolytic metal Mn:
1. leach and deironing
Leaching is carried out in the circular mechanical agitating tank of 6m * 5.0m, leaches beginning acid concentration 55.6kg/m
3, 90 ℃～95 ℃ of extraction temperatures, extraction time 2.5h, Fe time 1～2h is sunk in oxidation, and the rate of removing of Fe is more than 99%, and the Mn leaching yield is greater than 95%; It is good that leaching removes the Fe strainability.
Leach titanium white waste acid consumption 77.90m
3/ d, and add manganese electrolytic anode liquid 460m
3/ d, slag washing water 206m
3/ d;
According to the experimental study result, every input 1m
3The titanium white waste liquid adds Manganse Dioxide breeze 860kg, drops into pyrite 220kg, MnO
2Ore deposit: pyrite=1: 0.26.Under this condition, pyrite can fully reduce MnO
2Become Mn
2+, its reaction formula is as follows:
Leaching adds thermal recovery steam direct heating, and the leaching vat slurry temperature is not less than 90 ℃.
Owing to have up to 50kg/m in the titanium white waste acid
3Ferrous (Fe
2+) exist, add from pyrite and leach generation lot of F e
2+Enter into and leach ore pulp, MnO is being arranged
2Under the oxygenant effect, Fe
2+Be oxidized into Fe
3+
Leach terminal point pH6.0～6.2, adding ammoniacal liquor neutralized in former groove after terminal point was leached in arrival, made pH values of pulp reach 6.5～6.6, at this moment Fe
3+Complete hydrolysis becomes Fe (OH)
3Precipitation reaches the purpose of deironing, and iron time 1～2h is sunk in oxidation.
2. sulfuration removing heavy metals
Because MnO
2Mine belt comes a large amount of cobalt, nickel, makes manganese leach filtered liquid and contains Co 60mg/L, and Ni 90mg/L exceeds more than 10 times than conventional method Co, Ni, so adopt three sections sulfide precipitation method of purification removing heavy metals:
Sulfuration is carried out in mechanical agitating tank, and adding vulcanizing agent Fu Meina (S.D.D) makes the heavy metal ion Cu in the filtration
2+, Cd
2+, Co
2+, Ni
2+, Zn
2+Remove Deng impurity reaction generation sulfide precipitation.The vulcanization reaction formula is:
50～60 ℃ of curing temperatures, curing time 1h.
The sulfuration back uses chamber filter press to filter, and filtrate is flow automatically into leaving standstill ground.
Qualifying liquid pumps into header tank, uses for the manganese electrolysis.
3. manganese electrolysis
The employing stainless steel plate is a negative electrode, and selecting lead base antimony tin silver quad alloy plate for use is anode.
The electrolysis net reaction is:
On negative electrode, separate out Mn, on anode, emit O
2↑, generation simultaneously contains H
2SO
4Waste electrolyte.The waste electrolyte quantum of output is for adding 98% of qualified liquid measure, and waste electrolyte partly turns back to leach and uses, and part is sent neutralization and heavy Mn, and output manganous carbonate and ammonium sulfate make acid, the Mn of system
2+, (NH
4)
2SO
4With the liquor capacity balance.
Electrolysis is to have diaphragm bag to carry out with having in the false sill system electrolyzer.
Electrolytic technical qualification are as follows:
Qualifying liquid contains Mn 38kg/m
3, pH6.8～7.2;
Contain (NH
4)
2SO
4100～110kg/m
3
Anolyte contains Mn 15kg/m
3, contain H
2SO
441kg/m
3
36～40 ℃ of electrolysis temperatures;
Cathode current density 350～380A/m
2
Anodic current density 600～660A/m
2
Bath voltage 4.2～4.8V;
Similar poles are apart from 80mm;
Separate out cycle 24h.
4. anolyte neutralizes and reclaims manganous carbonate and ammonium sulfate
This process using titanium white waste liquid is the raw material production electrolytic metal Mn, for making full use of the H in the titanium white waste liquid
2SO
4With reach liquor capacity balance in the technological process, calculate by metallurgical, need extract 250m every day
3In the anolyte and produce manganous carbonate and ammonium sulfate.
Anolyte contains H
2SO
441kg/m
3, contain Mn 15kg/m
3, contain (NH
4)
2SO
4110kg/m
3, add the ammoniacal liquor neutralizing acid, add the heavy Mn of bicarbonate of ammonia, its reaction formula is:
Add in the ammoniacal liquor and the acid of anolyte, add bicarbonate of ammonia output manganous carbonate precipitation again, after filtering manganese carbonate product, filtrate contains (NH
4)
2SO
4Be elevated to 192kg/m
3, the moisture in the steam indirect heating evaporation filtered liquid is adopted in design, reaches further to concentrate (NH
4)
2SO
4Solution is as (NH
4)
2SO
3Concentration reaches 360kg/m
3The time, put into crystallizer tank blowing cooling, having under the situation of crystal seed slowly, crystallization goes out solid (NH
4)
2SO
4Draw (NH after the filtration
4)
2SO
4Product.Filtrate is mother liquor, in returning and operation.
Claims (1)
1. utilize titanium white waste acid and dioxide ore for manganese to produce the method for electrolytic metal Mn, it is characterized in that: utilize the H in the titanium white waste acid
2SO
4With Fe
2+Be subsidiary material, add dioxide ore for manganese and sulfurous iron ore and produce electrolytic metal Mn:
1. leach and deironing
Leaching is carried out in the circular mechanical agitating tank of 6m * 5.0m, leaches beginning acid concentration 55.6kg/m
3, 90 ℃～95 ℃ of extraction temperatures, extraction time 2.5h, Fe time 1～2h is sunk in oxidation, and the rate of removing of Fe is more than 99%, and the Mn leaching yield is greater than 95%;
Leach titanium white waste acid consumption 77.90m
3/ d, and add manganese electrolytic anode liquid 460m
3/ d, slag washing water 206m
3/ d;
According to the experimental study result, every input 1m
3The titanium white waste liquid adds Manganse Dioxide breeze 860kg, drops into pyrite 220kg, MnO
2Ore deposit: pyrite=1: 0.26;
Leaching adds thermal recovery steam direct heating, and the leaching vat slurry temperature is not less than 90 ℃;
Leach terminal point pH6.0～6.2, adding ammoniacal liquor neutralized in former groove after terminal point was leached in arrival, made pH values of pulp reach 6.5～6.6, at this moment Fe
3+Complete hydrolysis becomes Fe (OH)
3Precipitation, iron time 1～2h is sunk in oxidation;
2. vulcanize removing heavy metals
Add a large amount of MnO owing to leach
2The ore deposit makes leach liquor contain Co up to 60mg/L, and Ni90mg/L is higher more than 10 times than conventional manganese leach liquor Co, Ni, so adopt three sections sulfide precipitation method of purification removing heavy metals:
Sulfuration purifies to be carried out in mechanical agitating tank, and adding vulcanizing agent Fu Meina (S.D.D) makes the heavy metal ion Cu in the filtered liquid
2+, Cd
2+, Co
2+, Ni
2+, Zn
2+Remove Deng impurity reaction generation sulfide precipitation;
50～60 ℃ of curing temperatures, curing time 1h;
The sulfuration back uses chamber filter press to filter, and filtrate is flow automatically into leaving standstill ground;
Qualifying liquid pumps into header tank, uses for the manganese electrolysis;
3. manganese electrolysis
The employing stainless steel plate is a negative electrode, and selecting lead base antimony tin silver quad alloy plate for use is anode.
On negative electrode, separate out Mn, on anode, emit O
2↑, generation simultaneously contains H
2SO
4Waste electrolyte; The waste electrolyte quantum of output is for adding 98% of qualified liquid measure, and waste electrolyte partly turns back to leach and uses, and part is sent neutralization and heavy Mn, and output manganous carbonate and ammonium sulfate make acid, the Mn of system
2+, (NH
4)
2SO
4With the liquor capacity balance.
Electrolysis is to have diaphragm bag to carry out with having in the false sill system electrolyzer;
Electrolytic technical qualification are as follows:
Qualifying liquid contains Mn 38kg/m
3, pH6.8～7.2;
Contain (NH
4)
2SO
4100～110kg/m
3
Anolyte contains Mn 15kg/m
3, contain H
2SO
441kg/m
3
36～40 ℃ of electrolysis temperatures;
Cathode current density 350～380A/m
2
Anodic current density 600～660A/m
2
Bath voltage 4.2～4.8V;
Similar poles are apart from 80mm;
Separate out cycle 24h;
4. anolyte neutralizes and reclaims manganous carbonate and ammonium sulfate
Add in the ammoniacal liquor and the acid of anolyte, add bicarbonate of ammonia output manganous carbonate precipitation again, after filtering manganese carbonate product; Filtrate contains (NH
4)
2SO
4Be elevated to 192kg/m
3, adopt the moisture in the steam indirect heating evaporation filtered liquid, further concentrate (NH
4)
2SO
4Solution; As (NH
4)
2SO
3Concentration reaches 360kg/m
3The time, put into crystallizer tank blowing cooling, having under the situation of crystal seed slowly, crystallization goes out solid (NH
4)
2SO
4Draw (NH after the filtration
4)
2SO
4Product; Filtrate is mother liquor, in returning and operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100450584A CN1295355C (en) | 2004-07-19 | 2004-07-19 | Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100450584A CN1295355C (en) | 2004-07-19 | 2004-07-19 | Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724697A true CN1724697A (en) | 2006-01-25 |
| CN1295355C CN1295355C (en) | 2007-01-17 |
Family
ID=35924328
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100450584A Expired - Fee Related CN1295355C (en) | 2004-07-19 | 2004-07-19 | Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore |
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|---|---|
| CN (1) | CN1295355C (en) |
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| CN101787546A (en) * | 2010-04-09 | 2010-07-28 | 汪云华 | Method utilizing titanium white waste acid to prepare electrolytic manganese metal |
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| CN109399723A (en) * | 2018-12-03 | 2019-03-01 | 安徽工业大学 | A method of electrolytic manganese dioxide is produced using manganese tailing and Titanium white waste sulfuric acid |
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| CN110229961A (en) * | 2019-04-03 | 2019-09-13 | 张响 | A kind of technique leaching electrolytic manganese residues and manganese tailing using titanium white waste acid |
| CN110157911A (en) * | 2019-04-03 | 2019-08-23 | 张响 | A kind of technique of comprehensive reutilization electrolytic manganese residues and manganese tailing |
| CN110760680A (en) * | 2019-11-01 | 2020-02-07 | 广西科技师范学院 | Method for leaching, recovering and separating cobalt from manganese-sulfur purification waste residue |
| CN110760680B (en) * | 2019-11-01 | 2021-05-11 | 广西科技师范学院 | Method for leaching, recovering and separating cobalt from manganese-sulfur purification waste residue |
| CN112553481A (en) * | 2020-12-11 | 2021-03-26 | 中南大学 | Production method of electrolytic manganese |
| CN116162964A (en) * | 2023-03-17 | 2023-05-26 | 无棣宜能化工有限公司 | Electrolytic manganese and manganese carbonate common preparation process |
| CN116162964B (en) * | 2023-03-17 | 2023-09-15 | 无棣宜能化工有限公司 | Electrolytic manganese and manganese carbonate co-preparation method |
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