CN1414140A - Electrolytic manganese tank slag quenching cleaning method to produce high quality manganese dioxide - Google Patents
Electrolytic manganese tank slag quenching cleaning method to produce high quality manganese dioxide Download PDFInfo
- Publication number
- CN1414140A CN1414140A CN02114304A CN02114304A CN1414140A CN 1414140 A CN1414140 A CN 1414140A CN 02114304 A CN02114304 A CN 02114304A CN 02114304 A CN02114304 A CN 02114304A CN 1414140 A CN1414140 A CN 1414140A
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- CN
- China
- Prior art keywords
- solid substance
- manganse dioxide
- cleaning method
- consumption
- produce high
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
A process for preparing high-quality MnO2 from the dregs of Mn electrolyzer includes such steps as extracting the MnO2 dregs in the electrolyzer by NaF and NH4NO3, regulating pH value by CH3CONH2 and H2SO4, liquid-solid separation, drying the solid to obtain said product, and adding NH3HCO3 to liquid to obtain by-product (Mn salt and ammonium salt).
Description
The present invention relates to a kind of electrolytic manganese groove slag quenching cleaning method to produce high quality Manganse Dioxide technology.
The manganese resource reserve of China is abundant, and electrolytic manganese output is at the forefront in the world.But present processing to the anode slag of electrolyzer generation in the electrolytic manganese production process, still there is not desirable method, and quite a few anode slag mashed prod is arranged by water flushing discharging, fail well to be developed always, caused the pollution of environment and the waste of resource.
The purpose of this invention is to provide a kind of electrolytic manganese groove slag quenching cleaning method to produce high quality Manganse Dioxide technology.
The present invention uses the useless element in the extractant separaitng electrolytic tank anode slag, and making anode slag quench clean is Manganse Dioxide; Adding treatment agent again, to adjust its pH value be 1～3, and then add auxiliary and carry out purifying treatment, handles through liquid-solid separation after drying, just can get high-quality Manganse Dioxide.
Accompanying drawing is a process flow sheet of the present invention
Extractant of the present invention is No. 1 NaF and No. 2 NH
4NO
3, the treatment agent of adjusting pH value is No. 3 CH
3CONH
2With No. 4 H
2SO
4, the auxiliary of purifying treatment is No. 5 NaHCO
3With No. 6 NH
4CI.
The present invention at first screens the electrolytic manganese groove slag, behind the removal mechanical impurity, carries out defibrination and handles, and mesh-of-grind is controlled between 80～200 orders, adds No. 1 (NaF) and No. 2 (NH in pulping process
4NO
3) extractant, add-on is respectively 0.5%～5% of solid substance; Pulping process adds No. 3 (CH after finishing
3CONH
2) and No. 4 (H
2SO
4) treatment agent carries out the pH value adjustment, it is about 1～3 that 0.5%～3%, No. 4 treatment agent add-ons that No. 3 treatment agent add-ons are solid substance are kept the solution pH value; PH value is adjusted qualified back when carrying out liquid-solid separation, with No. 5 (NaHCO
3) and No. 6 (NH
4CI) add solid formation and carry out purifying treatment, add-on is 1%～5% of a solid substance, and after purifying treatment was qualified, solid substance entered dehumidification system and carries out processed, and the solid substance dehydration was packed to 2%～3% o'clock.When above-mentioned operation is carried out, with No. 7 (NH
3HCO
3) treatment agent adding liquid phase, carry out the removing heavy metals ion processing, add-on is 1%～10% of a liquid phase volume amount, after solid-liquid separation, the liquid phase deep processing is various manganese salt and ammonium salt (also can handle directly without deep processing and sell as by-product).
Adopt this processing method to handle the electrolytic manganese groove anode slag and produce Manganse Dioxide, metallic element contained in its anode slag can all reclaim, and whole process of production does not have waste residue and discharges environmentally safe.
Claims (4)
1, a kind of high-quality Manganse Dioxide production technique, particularly a kind of technology with electrolytic manganese groove slag (anode slag) quenching cleaning method to produce high quality Manganse Dioxide, it is characterized in that in through the groove slag behind the screening defibrination, adding extractant, making anode slag quench clean is Manganse Dioxide, adding treatment agent again, to adjust its pH value be 1～3, and then add auxiliary and carry out purifying treatment, at last to solid substance (M
NO
2) dehydrate processing, just can get high-quality Manganse Dioxide.
2, technology according to claim 1 is characterized in that extractant is NaF and NH
4NO
3, its consumption is respectively 0.5%～5% of solid substance.
3, technology according to claim 1, the treatment agent that it is characterized in that adjusting pH value is CH
3CONH
2And H
2SO
4, CH
3CONH
2Consumption be 0.5%～3% of solid substance, H
2SO
4Consumption then be as the criterion 1～3 to keep the solution pH value.
4, technology according to claim 1, the auxiliary that it is characterized in that carrying out purifying treatment is NaHCO
3And NH
4Cl, its consumption is respectively 1%～5% of solid substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021143048A CN1238539C (en) | 2002-07-26 | 2002-07-26 | Electrolytic manganese tank slag quenching cleaning method to produce high quality manganese dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021143048A CN1238539C (en) | 2002-07-26 | 2002-07-26 | Electrolytic manganese tank slag quenching cleaning method to produce high quality manganese dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1414140A true CN1414140A (en) | 2003-04-30 |
| CN1238539C CN1238539C (en) | 2006-01-25 |
Family
ID=4743041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021143048A Expired - Fee Related CN1238539C (en) | 2002-07-26 | 2002-07-26 | Electrolytic manganese tank slag quenching cleaning method to produce high quality manganese dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1238539C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880768A (en) * | 2010-06-14 | 2010-11-10 | 渤海大学 | Method for extracting high-purity manganese dioxide from manganese slag |
| CN103334012A (en) * | 2013-06-05 | 2013-10-02 | 南方科技大学 | Method for preparing metal doped manganese dioxide powder by utilizing electrolytic manganese anode slime and application of manganese dioxide powder |
-
2002
- 2002-07-26 CN CNB021143048A patent/CN1238539C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880768A (en) * | 2010-06-14 | 2010-11-10 | 渤海大学 | Method for extracting high-purity manganese dioxide from manganese slag |
| CN101880768B (en) * | 2010-06-14 | 2011-12-07 | 渤海大学 | Method for extracting high-purity manganese dioxide from manganese slag |
| CN103334012A (en) * | 2013-06-05 | 2013-10-02 | 南方科技大学 | Method for preparing metal doped manganese dioxide powder by utilizing electrolytic manganese anode slime and application of manganese dioxide powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1238539C (en) | 2006-01-25 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |