CN108975408A - A method of preparing mangano-manganic oxide - Google Patents
A method of preparing mangano-manganic oxide Download PDFInfo
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- CN108975408A CN108975408A CN201811179412.0A CN201811179412A CN108975408A CN 108975408 A CN108975408 A CN 108975408A CN 201811179412 A CN201811179412 A CN 201811179412A CN 108975408 A CN108975408 A CN 108975408A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
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Abstract
The invention discloses a kind of methods for preparing mangano-manganic oxide, belong to field of hydrometallurgy.The present invention prepares mangano-manganic oxide as raw material using the trivalent or tetravalent oxide of manganese carbonate or manganous hydroxide and manganese.The oxide of manganese is Mn2O3, MnOOH and MnO2.Preparation condition is manganese carbonate or manganous hydroxide and Mn2O3Or in MnOOH bivalent manganese and manganic molar ratio 1:2~2.2, manganese carbonate or manganous hydroxide and MnO2Molar ratio 2:1.0~1.1 of middle bivalent manganese and tetravalent manganese, 1~5:1 of liquid-solid ratio, 100~250 DEG C of temperature, the time is 1~40 hour.After the reaction was completed, it filters, washs, drying obtains mangano-manganic oxide product, and manganese content is greater than 71% in product.Sulphur silicone content is low in the method for the present invention product, can prepare and meet industrialization production requirements.
Description
Technical field
The invention belongs to field of hydrometallurgy, specifically provide a kind of method for preparing mangano-manganic oxide.
Background technique
Mangano-manganic oxide is mainly used for manganese-zinc ferrite magnetic material.The main side of mangano-manganic oxide is industrially prepared at present
Method is electrolytic metal manganese powder oxidizing process, which does not have technology content, and at high cost, cost is controlled by electrolytic manganese metal.Other systems
Preparation Method has roasting method and Whote-wet method oxidizing process etc..Roasting method is to aoxidize manganese carbonate, manganous hydroxide or manganese sulfate at high temperature
Roasting prepares mangano-manganic oxide.There are maturing temperature height, calcining time length, product bonding roasting apparatus and easy groups for the method
The disadvantages of poly-, so non-industrialized production always.Manganese sulfate and manganous hydroxide Whote-wet method oxidizing process contain because of the product sulphur silicon of acquisition
Amount is high, constrains the development of the method.
Summary of the invention
It is an object of the invention to invent a kind of to react preparation four with the oxide of manganese with cheap manganese carbonate and manganous hydroxide
The method of Mn 3 O.
A method of preparing mangano-manganic oxide, it is characterised in that former material is made with the oxide of manganous compound and manganese
Material, manganous compound is mixed with the oxide of manganese by certain molar ratio, at 100~250 DEG C of 1~5:1 of liquid-solid ratio, temperature
Under the conditions of 1~40h of time, mangano-manganic oxide is made.
Further, manganous compound is manganese carbonate and manganous hydroxide, and manganous hydroxide is that acquisition is reacted with manganese salt with alkali
Product, the oxide of manganese is trivalent Mn oxide and tetravalence Mn oxide, and trivalent Mn oxide is Mn2O3And MnOOH, tetravalence
Mn oxide is MnO2。
Further, bivalent manganese and manganic press 1:2~2.2 in the manganese carbonate or manganous hydroxide and trivalent Mn oxide
Molar ratio ingredient, manganese carbonate or manganous hydroxide and MnO2Middle bivalent manganese and tetravalent manganese press the molar ratio ingredient of 2:1.0~1.1.
Sulphur silicone content is low in the method for the present invention product, and manganese content is greater than 71% in product, can prepare and meet industrialized production
It is required that.
Specific embodiment
Example 1:MnCO3With Mn2O3Or MnOOH weigh dosage by bivalent manganese and manganic molar ratio 1:2 after mix, it is solid in liquid
Under the conditions of 2:1 and 180 DEG C of reaction temperature, reaction 14h can obtain mangano-manganic oxide.
Example 2:MnCO3With Mn2O3Or MnOOH weigh dosage by bivalent manganese and manganic molar ratio 1:2.2 after mix, in liquid
Gu under the conditions of 3:1 and 240 DEG C of reaction temperature, reaction 4h can obtain mangano-manganic oxide.
Example 3:MnCO3With Mn2O3Or MnOOH weighs dosage by bivalent manganese and manganic molar ratio 1:2.1 and mixes, it is solid in liquid
Under the conditions of 1:1 and 120 DEG C of reaction temperature, reaction 40h can obtain mangano-manganic oxide.
Example 4:MnCO3With MnO2Dosage mixing is weighed by bivalent manganese and tetravalent manganese molar ratio 2:1, consolidates 2:1 and reaction temperature in liquid
Under the conditions of 250 DEG C of degree, reaction 3h can obtain mangano-manganic oxide.
Example 5:MnCO3With MnO2Dosage mixing is weighed by bivalent manganese and tetravalent manganese molar ratio 2:1.1, consolidates 4:1 and reaction in liquid
Under the conditions of 190 DEG C of temperature, reaction 12h can obtain mangano-manganic oxide.
Example 6:Mn (OH)2With Mn2O3Or MnOOH weigh dosage by bivalent manganese and manganic molar ratio 1:2 after mix, in liquid
Gu under the conditions of 2:1 and 180 DEG C of reaction temperature, reaction 12h can obtain mangano-manganic oxide.
Example 7:Mn (OH)2With Mn2O3Or MnOOH weigh dosage by bivalent manganese and manganic molar ratio 1:2.2 after mix,
Liquid is consolidated under the conditions of 3:1 and 240 DEG C of reaction temperature, and reaction 3h can obtain mangano-manganic oxide.
Example 8:Mn (OH)2With Mn2O3Or MnOOH weighs dosage by bivalent manganese and manganic molar ratio 1:2.1 and mixes, in liquid
Gu under the conditions of 1:1 and 110 DEG C of reaction temperature, reaction 40h can obtain mangano-manganic oxide.
Example 9:Mn (OH)2With MnO2Dosage mixing is weighed by bivalent manganese and tetravalent manganese molar ratio 2:1, consolidates 2:1 and reaction in liquid
Under the conditions of 220 DEG C of temperature, reaction 3h can obtain mangano-manganic oxide.
Example 10:Mn (OH)2With MnO2By bivalent manganese and tetravalent manganese molar ratio 2:1.1 weigh dosage mixing, liquid consolidate 4:1 with
Under the conditions of 170 DEG C of reaction temperature, reaction 15h can obtain mangano-manganic oxide.
Claims (3)
1. a kind of method for preparing mangano-manganic oxide, it is characterised in that raw material are made with the oxide of manganous compound and manganese,
Manganous compound is mixed with the oxide of manganese by certain molar ratio, 1~5:1 of liquid-solid ratio, 100~250 DEG C of temperature and
Under the conditions of 1~40h of time, mangano-manganic oxide is made.
2. preparing the method for mangano-manganic oxide according to claim 1, it is characterised in that manganous compound be manganese carbonate and
Manganous hydroxide, manganous hydroxide are to react the product obtained with manganese salt with alkali, and the oxide of manganese is trivalent Mn oxide and tetravalent manganese
Oxide, trivalent Mn oxide are Mn2O3And MnOOH, tetravalence Mn oxide are MnO2。
3. preparing the method for mangano-manganic oxide according to claim 1, it is characterised in that manganese carbonate or manganous hydroxide and trivalent
Bivalent manganese and manganic press the molar ratio ingredient of 1:2~2.2, manganese carbonate or manganous hydroxide and MnO in Mn oxide2Middle bivalent manganese
The molar ratio ingredient of 2:1.0~1.1 is pressed with tetravalent manganese.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811179412.0A CN108975408B (en) | 2018-10-10 | 2018-10-10 | Method for preparing mangano-manganic oxide |
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| CN201811179412.0A CN108975408B (en) | 2018-10-10 | 2018-10-10 | Method for preparing mangano-manganic oxide |
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| CN108975408A true CN108975408A (en) | 2018-12-11 |
| CN108975408B CN108975408B (en) | 2021-04-06 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821091A (en) * | 2006-03-03 | 2006-08-23 | 北京科技大学 | Process for preparing mangano-mangaic oxide using mangenese salt hydrothermal oxidizing method |
| CN1843939A (en) * | 2006-05-15 | 2006-10-11 | 北京科技大学 | Method for preparing hybrid oxide of manganese by manganese sulfate solution |
| CN1935673A (en) * | 2006-10-19 | 2007-03-28 | 北京科技大学 | Method for preparing trimanganese tetraoxide by direct oxidation of free bivalent manganese ion |
| CN101428860A (en) * | 2008-12-08 | 2009-05-13 | 北京科技大学 | Method for producing high purity MnOOH |
| CN102765760A (en) * | 2012-08-16 | 2012-11-07 | 深圳市新昊青科技有限公司 | Preparation method of manganous-manganic oxide and manganous-manganic oxide |
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2018
- 2018-10-10 CN CN201811179412.0A patent/CN108975408B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821091A (en) * | 2006-03-03 | 2006-08-23 | 北京科技大学 | Process for preparing mangano-mangaic oxide using mangenese salt hydrothermal oxidizing method |
| CN1843939A (en) * | 2006-05-15 | 2006-10-11 | 北京科技大学 | Method for preparing hybrid oxide of manganese by manganese sulfate solution |
| CN1935673A (en) * | 2006-10-19 | 2007-03-28 | 北京科技大学 | Method for preparing trimanganese tetraoxide by direct oxidation of free bivalent manganese ion |
| CN101428860A (en) * | 2008-12-08 | 2009-05-13 | 北京科技大学 | Method for producing high purity MnOOH |
| CN102765760A (en) * | 2012-08-16 | 2012-11-07 | 深圳市新昊青科技有限公司 | Preparation method of manganous-manganic oxide and manganous-manganic oxide |
Non-Patent Citations (1)
| Title |
|---|
| 伍喜庆等: "四氧化三锰的制备方法", 《中国锰业》 * |
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