CN1325670C - Method for removing ferrous-iron from manganese sulfate - Google Patents
Method for removing ferrous-iron from manganese sulfate Download PDFInfo
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- CN1325670C CN1325670C CNB2006100587177A CN200610058717A CN1325670C CN 1325670 C CN1325670 C CN 1325670C CN B2006100587177 A CNB2006100587177 A CN B2006100587177A CN 200610058717 A CN200610058717 A CN 200610058717A CN 1325670 C CN1325670 C CN 1325670C
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- manganese sulfate
- sulfate solution
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Abstract
The present invention discloses a method for removing ferrous iron from manganese sulfate solution, which utilizes an electrocatalysis principle. From 0.1 to 100 g. L<-1> active carbon is added in the manganese sulfate solution as electrocatalyst. The temperature of the solution is controlled from 10 to 100 DEG C, and the pH value of the solution is regulated from 0 to 8. Air or oxygen is blasted into the manganese sulfate solution for from 0.5 to 3 hours. The blast air or oxygen in the present invention fast oxidizes ferrous ions in the manganese sulfate solution into ferric ions. The method has the advantages of good ferrous ion removing effect, resource saving and low cost.
Description
Technical field
The present invention relates to a kind of method of removing ferrous ion, relate in particular to a kind of method of removing ferrous ion in the manganese sulfate solution.
Background technology
No matter be pyrolusite, or the sulphuric leachate of rhodochrosite, all containing the impurity ferrous ion, the method for removing ferrous ion at present is to control the pH value of solution value below 2.3, adds the oxygenant dioxide ore for manganese, is ferric ion with oxidation of divalent iron ion.Though this method can be reduced to 0.1mg.L with the ferrous ion in the solution
-1Below, but the add-on of manganese oxide ore is big, and utilization ratio is very low, the cost height.Ferrous ion is a kind of reductive agent, and cheap air is a kind of oxygenant, after both contacts, oxygen can be oxidized to ferric ion with ferrous ion on thermodynamics, but because of the reaction activity height, speed of response is very slow on kinetics, can't satisfy industrial requirement.
Summary of the invention
In order to solve the problem of above-mentioned existence, the object of the present invention is to provide a kind of electrocatalysis principle of utilizing, in manganese sulfate solution, add gac as eelctro-catalyst, remove ferrous method in the sulfuric acid manganese solution, with air the ferrous ion in the manganese sulfate solution is oxidized to ferric ion fast under certain condition.
Technical scheme of the present invention is achieved in that a kind of ferrous method in the sulfuric acid manganese solution of removing, and adds eelctro-catalyst gac 0.1～100g.L in manganese sulfate solution
-1, the control solution temperature is 10～100 ℃, and the pH of regulator solution is 0～8, blasts air or oxygen 0.5～3h in manganese sulfate solution.
Described eelctro-catalyst gac add-on is preferably 0.2～20g.L
-1, solution temperature control is preferably 20～80 ℃, and the pH of solution is preferably 1～7, and the time that blasts air or oxygen is preferably 0.8～2h.
Compared with prior art, the invention has the beneficial effects as follows
1, in manganese sulfate solution, adds gac as eelctro-catalyst, utilize air or oxygen that the ferrous ion in the manganese sulfate solution is oxidized to ferric ion fast.
2, effective except that ferrous ion, economize on resources, cost is low.
Embodiment
Below in conjunction with specific embodiment the present invention is described in further detail, but not as a limitation of the invention.
Embodiment 1: in the 1000ml manganese sulfate solution, adding the 0.5g activity charcoal powder, is 6 o'clock in 30 ℃ of temperature and pH, with air or oxygen oxidation 0.5h, ferrous ion concentration can be reduced to 0.1mg.L
-1Below.
Embodiment 2: in the 1000ml manganese sulfate solution, adding the 3g activity charcoal powder, is 8 o'clock in 50 ℃ of temperature and pH, with air or oxygen oxidation 1h, ferrous ion concentration can be reduced to 0.1mg.L
-1Below.
Embodiment 3: in the 1000ml manganese sulfate solution, adding the 9g activity charcoal powder, is 4 o'clock in 15 ℃ of temperature and pH, with air or oxygen oxidation 2.5h, ferrous ion concentration can be reduced to 0.1mg.L
-1Below.
Embodiment 4: in the 1000ml manganese sulfate solution, adding the 1g activity charcoal powder, is 2 o'clock in 90 ℃ of temperature and pH, with air or oxygen oxidation 3h, ferrous ion concentration can be reduced to 0.1mg.L
-1Below.
Embodiment 5: in the 1000ml manganese sulfate solution, adding the 5g activity charcoal powder, is 1 o'clock in 40 ℃ of temperature and pH, with air or oxygen oxidation 3h, ferrous ion concentration can be reduced to 0.1mg.L
-1Below.
Claims (5)
1, a kind of except that ferrous method in the sulfuric acid manganese solution, it is characterized in that: in manganese sulfate solution, add gac 0.1～100g.L
-1, the control solution temperature is 10～100 ℃, and the pH of regulator solution is 0～8, blasts air or oxygen 0.5～3h in manganese sulfate solution.
2, manganese sulfate solution according to claim 1 removes ferrous method, and it is characterized in that: the gac of adding is 0.2～20g.L
-1
3, a kind of ferrous method in the sulfuric acid manganese solution of removing according to claim 1, it is characterized in that: the temperature of solution is controlled to be 20～80 ℃.
4, a kind of ferrous method in the sulfuric acid manganese solution of removing according to claim 1, it is characterized in that: the pH of solution is 1～7.
5, a kind of ferrous method in the sulfuric acid manganese solution of removing according to claim 1, it is characterized in that: the time that blasts air or oxygen is 0.8～2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100587177A CN1325670C (en) | 2006-03-03 | 2006-03-03 | Method for removing ferrous-iron from manganese sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100587177A CN1325670C (en) | 2006-03-03 | 2006-03-03 | Method for removing ferrous-iron from manganese sulfate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1814830A CN1814830A (en) | 2006-08-09 |
| CN1325670C true CN1325670C (en) | 2007-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100587177A Expired - Fee Related CN1325670C (en) | 2006-03-03 | 2006-03-03 | Method for removing ferrous-iron from manganese sulfate |
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| Country | Link |
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| CN (1) | CN1325670C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619388B (en) * | 2009-08-10 | 2010-12-01 | 四川大学 | Method for restraining generation of manganous dithionate in process of leaching sulfur dioxide gas out of pyrolusite |
| CN102534232A (en) * | 2012-01-09 | 2012-07-04 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag under normal pressure by adding carbon-containing substance into sodium hydroxide solution |
| CN106756004B (en) * | 2017-01-13 | 2018-09-11 | 中国恩菲工程技术有限公司 | Hydrometallurgical method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625939A (en) * | 1979-08-07 | 1981-03-12 | Nippon Steel Corp | Manufacture of metallic manganese |
| CN1058201A (en) * | 1991-04-22 | 1992-01-29 | 黄石市能源综合科学技术研究所 | The novel process of wet producing manganese sulfate from two kinds of mine |
-
2006
- 2006-03-03 CN CNB2006100587177A patent/CN1325670C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625939A (en) * | 1979-08-07 | 1981-03-12 | Nippon Steel Corp | Manufacture of metallic manganese |
| CN1058201A (en) * | 1991-04-22 | 1992-01-29 | 黄石市能源综合科学技术研究所 | The novel process of wet producing manganese sulfate from two kinds of mine |
Non-Patent Citations (1)
| Title |
|---|
| 硫酸锰溶液除亚铁的研究 邹兴，李艳，邓彩勇，中国锰业，第22卷第2期 2004 * |
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| CN1814830A (en) | 2006-08-09 |
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