CN1052292A - From the potassium permanganate waste residue, extract the method for Manganse Dioxide - Google Patents
From the potassium permanganate waste residue, extract the method for Manganse Dioxide Download PDFInfo
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- CN1052292A CN1052292A CN 90105422 CN90105422A CN1052292A CN 1052292 A CN1052292 A CN 1052292A CN 90105422 CN90105422 CN 90105422 CN 90105422 A CN90105422 A CN 90105422A CN 1052292 A CN1052292 A CN 1052292A
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- acid
- waste residue
- potassium permanganate
- strong acid
- manganse dioxide
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Abstract
The present invention is a kind of method of extracting Manganse Dioxide from the potassium permanganate waste residue, its main points are to utilize strong acid or middle strong acid and potassium permanganate waste residue that neutralization and replacement(metathesis)reaction take place, make the insoluble or insoluble material in the waste residue be converted into soluble material, then after filtration, washing and oven dry promptly get product, utilize the present invention also can to contain magnesium, calcium is higher, handle and contain the lower pyrolusite of manganese.
Description
The present invention relates to potassium permanganate waste residue treatment technology.
Produce in the potassium permanganate process at modern industrialization, give off a large amount of waste residues, wherein contain Manganse Dioxide 45～40%(in butt through chemical analysis and check), contain potassium permanganate and alkali is about 5%, other also has some to derive from insolubles in the raw materials for production Manganse Dioxide, calcic wherein, magnesium, iron, oxide compounds such as aluminium account for 6%～10%, also have a large amount of silicate and a small amount of heavy metal simultaneously, owing to contain these impurity in the waste residue, thereby cause a large amount of Manganse Dioxide not utilize, so both wasted a large amount of precious resources, and taken a large amount of soils again and piled up, bury, polluted environment.
The object of the present invention is to provide the method for from the potassium permanganate waste residue, extracting Manganse Dioxide that a kind of technology is simple, cost is low, thereby make that utilizing Manganse Dioxide to produce manganese series product such as manganous sulfate electrolytic manganese dioxide, manganese metal brings many convenience.
Main points of the present invention are to utilize strong acid or middle strong acid and potassium permanganate waste residue to neutralize and replacement(metathesis)reaction, control reaction end pH value is 6～7, making insoluble or insoluble impurity decomposition and inversion contained in the waste residue is soluble substance, after filtration, the washing and the oven dry after promptly get product.
Accompanying drawing is a process flow sheet of the present invention
Below in conjunction with accompanying drawing the present invention is described further:
At first add an amount of water in reaction tank, start stirring, add waste residue and slowly drip strong acid or middle strong acid, control reaction end pH value is 6～7, and reaction is carried out reactant after finishing
Filter.The present invention can adopt suction filtration or press filtration method to filter.With solution suction strainer, start vacuum pump and carry out suction filtration (or using press filtration), discharge water again after filtration finishes gained manganese slag is washed, but sampling analysis after the washing, then with manganese slag drying and packaging, just can get content at the Manganse Dioxide more than 50%, it is higher to utilize processing method of the present invention also can be fit to containing magnesium calcium, and the poorer pyrolusite of manganese is handled.
Strong acid that the present invention is used or middle strong acid can be selected sulfuric acid, hydrochloric acid, nitric acid, sulfurous acid or phosphoric acid and organic acid or middle strong acid etc. for use.For reducing cost, to increase economic efficiency, industrial effluent is preferably adopted in suggestion, as sulfur waste acid etc.
Technology of the present invention is simple, with low cost, adopts about 20 yuan of industrial sulfur waste acid treatment cost costs, get final product one ton of 6 electrode manganese dioxide, sale price is more than 300 yuan, therefore good in economic efficiency, product index meets or exceeds industrial 6 grade standards, also has environmental benefit preferably simultaneously.
Embodiments of the invention adopt industrial waste sulfuric acid and suction filtration mode, and its principal reaction equation is as follows:
Claims (3)
1, a kind of method of from the potassium permanganate waste residue, extracting Manganse Dioxide, the invention is characterized in and add strong acid in the potassium permanganate waste residue or middle strong acid neutralizes and replacement(metathesis)reaction, control reaction end pH value is 6～7, the manganese slag that reaction will obtain after finishing is after filtration washed, and oven dry promptly gets product Manganse Dioxide.
2, the method for claim 1 is characterized in that described strong acid or middle strong acid are sulfuric acid, hydrochloric acid, nitric acid, sulfurous acid, phosphoric acid and organic acid or middle strong acid etc.
3, the method for claim 1 is characterized in that adopting suction filtration or press filtration mode to filter, washing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105422 CN1052292A (en) | 1990-03-05 | 1990-03-05 | From the potassium permanganate waste residue, extract the method for Manganse Dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105422 CN1052292A (en) | 1990-03-05 | 1990-03-05 | From the potassium permanganate waste residue, extract the method for Manganse Dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1052292A true CN1052292A (en) | 1991-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105422 Pending CN1052292A (en) | 1990-03-05 | 1990-03-05 | From the potassium permanganate waste residue, extract the method for Manganse Dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1052292A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260471B (en) * | 2008-04-28 | 2010-06-02 | 中国环境科学研究院 | Complete set of cleaning producing technique for extracting soluble manganese from manganese residue by using anode liquor |
| CN105329947A (en) * | 2015-10-28 | 2016-02-17 | 上海大学 | Preparation method of nano-manganese oxide of flocculent structure |
| CN107935047A (en) * | 2017-12-19 | 2018-04-20 | 广东医科大学 | A kind of control synthetic method of different-shape and the nano-manganese dioxide of size |
-
1990
- 1990-03-05 CN CN 90105422 patent/CN1052292A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260471B (en) * | 2008-04-28 | 2010-06-02 | 中国环境科学研究院 | Complete set of cleaning producing technique for extracting soluble manganese from manganese residue by using anode liquor |
| CN105329947A (en) * | 2015-10-28 | 2016-02-17 | 上海大学 | Preparation method of nano-manganese oxide of flocculent structure |
| CN107935047A (en) * | 2017-12-19 | 2018-04-20 | 广东医科大学 | A kind of control synthetic method of different-shape and the nano-manganese dioxide of size |
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| PB01 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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