CN102134731A - Method for removing magnesium via cycle of ethanol in electrolytic manganese machining process - Google Patents
Method for removing magnesium via cycle of ethanol in electrolytic manganese machining process Download PDFInfo
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- CN102134731A CN102134731A CN2011100242492A CN201110024249A CN102134731A CN 102134731 A CN102134731 A CN 102134731A CN 2011100242492 A CN2011100242492 A CN 2011100242492A CN 201110024249 A CN201110024249 A CN 201110024249A CN 102134731 A CN102134731 A CN 102134731A
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- ethanol
- anolyte
- magnesium sulfate
- electrolytic manganese
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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
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a method for removing magnesium via cycle of ethanol in an electrolytic manganese machining process, which is characterized by comprising the following steps: adding 80-125g/l of absolute ethanol in anolyte of electrolytic manganese, stirring and adjusting the temperature within 35-55DEG C to ensure that the magnesium sulfate in the anolyte is largely salted out and precipitated; carrying out filtration and impurity removal in the anolyte so as to remove the saturated magnesium sulfate precipitate in the anolyte; and distilling the filtered solution to distill and separate the ethanol so as to realize the recovery and the recycle of the ethanol. Compared with the prior art, the method for removing magnesium via cycle of the invention adopts a process for processing magnesium sulfate via cycle of ethanol so that the magnesium sulfate can be effectively removed, the precipitation phenomenon of magnesium sulfate crystallization in the production process is eliminated, the electrolytic operation is simpler and easier, the electrolytic environment is improved, the current efficiency is increased, the product quality is improved, the magnesium sulfate is effectively prevented from gradually accumulating in the electrolyte to gradually increase the concentration, the viscosity and the density are reduced, the ions in the electrolyte are normally diffused, the cell voltage is reduced and the like.
Description
Technical field
The method that the present invention relates to remove impurity magnesium in a kind of electrolytic manganese complete processing and solve electrolytic manganese solution crystallization blocking pipeline problem.
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Background technology
In the existing electrolytic manganese complete processing, calcium, magnesium contained in the manganese ore are also generated calcium sulfate and sal epsom by sulfuric acid dissolution in leaching engineering.Calcium sulfate solubleness is very little, and major part is removed when filtering, and the content in anolyte (electrolytic solution) generally reaches requirement than low energy; And the very big sal epsom of solubleness in electrolytic solution gradually accumulation its concentration is increased gradually, make viscosity, the density of electrolytic solution increase, electric conductivity descends, cause the ion diffusion in the electrolytic solution to be hindered, bath voltage rises, the electrolytic deposition process of Manganse Dioxide can not evenly carry out, and seriously hinders normally carrying out of electrolytic manganese.On the other hand, sal epsom is saltoutd in electrolytic process, separates out brokenly in electrode, equipment and pipeline, also brings very big difficulty to operation.Therefore should often remove the sal epsom that in solution, accumulates in process of production, make the carrying out of the unlikely obstruction electrolytic process of its concentration, and prior art is removed the method for sal epsom in electrolytic solution, complex process, maybe need to bring other material into and form impurity, can not satisfy the needs of electrolytic manganese processing well.
Summary of the invention
The present invention is directed to sal epsom but in electrolytic solution gradually the accumulation its concentration is increased gradually, make viscosity, the density of electrolytic solution increase, electric conductivity descends, cause the ion diffusion in the electrolytic solution to be hindered, bath voltage rises, and the electrolytic deposition process of Manganse Dioxide such as can not evenly carry out at drawback, and prior art is removed the method for sal epsom in electrolytic solution, complex process, can not satisfy the deficiency of electrolytic manganese processing needs, provide that the ethanol circulation removes magnesium method in a kind of electrolytic manganese complete processing.
Technical scheme of the present invention: the ethanol circulation removes magnesium method in the electrolytic manganese complete processing, it is characterized in that: add dehydrated alcohol in the anolyte of electrolytic manganese, its add-on is 80-125g/l, after the stirring, adjust temperature at 35-55 ℃, make a large amount of salt precipitations of sal epsom in the anolyte; With the anolyte filtering and impurity removing, remove saturated sal epsom precipitation in the anolyte; Solution after will handling after filtration again separates ethanol distillation by the distillatory method, realizes that ethanol reclaims and recycle.
Further feature is: the add-on of described dehydrated alcohol is 100g/l.
Described temperature is 45 ℃.
The ethanol circulation removes magnesium method in the electrolytic manganese complete processing of the present invention, with respect to prior art, has following characteristics:
1, ethanol circular treatment sal epsom technology, effective place to go sal epsom is eliminated in the production process sal epsom crystalline and is separated out phenomenon, makes electrolysis procedure more simple.
2, owing to reduced the content of ion magnesium, to improving electrolytic environments, improve current efficiency, improving quality product reasonable effect is all arranged.
3, prevent that effectively sal epsom from accumulating the phenomenon that its concentration is increased gradually gradually in electrolytic solution, reduce viscosity, the density of electrolytic solution, make the ion diffuse normal in the electrolytic solution, reduce bath voltage etc.
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Description of drawings
Fig. 1 is a processing method synoptic diagram of the present invention.
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Embodiment
In Fig. 1, the ethanol circulation removes magnesium method in the electrolytic manganese complete processing of the present invention, be in existing electrolytic manganese process flow process, to introduce dehydrated alcohol, its add-on is 80-125g/l: promptly add dehydrated alcohol in the anolyte of electrolytic manganese, stirring or fully stirring mixes it, and adjust temperature about 35-55 ℃, optimum temps makes a large amount of salt precipitations of sal epsom in the anolyte about 45 ℃; With the anolyte filtering and impurity removing, promptly remove sal epsom precipitation in the anolyte again, the rate of removing of sal epsom can reach more than 75%; Solution after will handling after filtration again separates ethanol distillation by the distillatory method, realizes isolating ethanol is reclaimed and recycle, does not have to add in the anode liquid other materials simultaneously, holding anode fluid component stable.Carry out in the fractionation by distillation process at distillation tower, the alcohol gas vaporization at high temperature reclaims after collecting and the energy recycle, and the sal epsom crystalline deposit is further removed, and the anolyte censorship earlier through the distillation tower fractionation by distillation can recycle.
The add-on of described dehydrated alcohol is 80-125g/l, and optimal addn is 100g/l.Concrete add-on can be 85g/l, 88g/l, 90g/l, 95g/l, 98g/l, 100g/l, 102g/l, 105g/l, 108g/l, 110g/l, 116g/l, 118g/l, 120g/l, 122g/l etc., can both satisfy actual needs.
Claims (3)
1. the ethanol circulation removes magnesium method in the electrolytic manganese complete processing, and it is characterized in that: add dehydrated alcohol in the anolyte of electrolytic manganese, its add-on is 80-125g/l; After the stirring, adjust temperature, make sal epsom in the anolyte precipitation of saltouing at 35-55 ℃; With the anolyte filtering and impurity removing, remove sal epsom precipitation in the anolyte again; Solution after will handling after filtration again separates ethanol distillation by the distillatory method, and ethanol is reclaimed and recycle.
2. remove magnesium method according to ethanol circulation in the described electrolytic manganese complete processing of claim 1, it is characterized in that: the add-on of described dehydrated alcohol is 100g/l.
3. remove magnesium method according to ethanol circulation in the described electrolytic manganese complete processing of claim 1, it is characterized in that: described temperature is 45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100242492A CN102134731B (en) | 2011-01-21 | 2011-01-21 | Method for removing magnesium via cycle of ethanol in electrolytic manganese machining process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100242492A CN102134731B (en) | 2011-01-21 | 2011-01-21 | Method for removing magnesium via cycle of ethanol in electrolytic manganese machining process |
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| CN102134731A true CN102134731A (en) | 2011-07-27 |
| CN102134731B CN102134731B (en) | 2013-03-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947154A (en) * | 2015-07-08 | 2015-09-30 | 长沙矿冶研究院有限责任公司 | Method for demagging anolyte of electrolytic manganese |
| CN114480886A (en) * | 2021-12-23 | 2022-05-13 | 四川中哲新材料科技有限公司 | Method for producing electrolytic manganese metal from manganese carbonate ore with high magnesium impurity |
| CN114480842A (en) * | 2021-12-30 | 2022-05-13 | 深圳市中金岭南有色金属股份有限公司丹霞冶炼厂 | Method and device for removing magnesium from zinc smelting zinc sulfate solution |
| CN118458964A (en) * | 2024-05-16 | 2024-08-09 | 东北大学 | Method for reducing permanent hardness of high-calcium magnesium sulfate wastewater |
-
2011
- 2011-01-21 CN CN2011100242492A patent/CN102134731B/en active Active
Non-Patent Citations (3)
| Title |
|---|
| 《临沂师范学院学报》 20071231 平梅等 20℃时MgSO4-C2H5OH-H2O三元体系的相平衡研究 50-53 1-3 第29卷, 第6期 * |
| 《应用化学》 20030228 张军等 Mg2+，Li+//SO42--C2H5OH-H2O体系在25℃的等温互溶度和相关系 175-177 1-3 第20卷, 第2期 * |
| 《盐湖研究》 19941231 夏树屏 Li2SO4和MgSO4对C2H5OH-H2O体系的影响 16-20 1-3 第2卷, 第4期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947154A (en) * | 2015-07-08 | 2015-09-30 | 长沙矿冶研究院有限责任公司 | Method for demagging anolyte of electrolytic manganese |
| CN114480886A (en) * | 2021-12-23 | 2022-05-13 | 四川中哲新材料科技有限公司 | Method for producing electrolytic manganese metal from manganese carbonate ore with high magnesium impurity |
| CN114480842A (en) * | 2021-12-30 | 2022-05-13 | 深圳市中金岭南有色金属股份有限公司丹霞冶炼厂 | Method and device for removing magnesium from zinc smelting zinc sulfate solution |
| CN118458964A (en) * | 2024-05-16 | 2024-08-09 | 东北大学 | Method for reducing permanent hardness of high-calcium magnesium sulfate wastewater |
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| CN102134731B (en) | 2013-03-20 |
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Effective date of registration: 20220621 Address after: 554199 4th floor, Economic Development Zone Management Committee, Songtao Miao Autonomous County, Tongren City, Guizhou Province Patentee after: GUIZHOU WULING MANGANESE INDUSTRY Co.,Ltd. Address before: 409912 Xiushan Town, Xiushan County, Chongqing Chongqing Wuling Manganese Industry Co., Ltd. Patentee before: Chongqing Wuling Manganese Industry Corp. |
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