CN1202013C - Process for united producing barium hydroxide and manganese sulfate - Google Patents
Process for united producing barium hydroxide and manganese sulfate Download PDFInfo
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- CN1202013C CN1202013C CN 03102418 CN03102418A CN1202013C CN 1202013 C CN1202013 C CN 1202013C CN 03102418 CN03102418 CN 03102418 CN 03102418 A CN03102418 A CN 03102418A CN 1202013 C CN1202013 C CN 1202013C
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- Prior art keywords
- hydrated barta
- manganous sulfate
- barium
- processing method
- solution
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Abstract
The present invention relates to a technological process for preparing barium hydroxide (Ba(OH)2) and manganese sulphate (MnSO4) by using manganese dioxide (MnO2) and barium sulfide (BaS) as raw materials. The process of the present invention comprises the following steps of dissolving barium sulfide into water to obtain a barium sulfide water solution with the concentration of 1.1 mol/L, and making the barium sulfide water solution hydrolyze to obtain barium hydroxide and manganese sulphate through the oxidation reduction reaction of MnO2. The present invention has the advantages of easy acquirement of the raw materials, simple technology, high yield, no pollution and large economic benefit, environmental protection benefit and social benefit.
Description
Technical field
The present invention relates to the preparation of hydrated barta and manganous sulfate.
Background technology
Hydrated barta and manganous sulfate are basic chemical raw materials, and the social demand amount is big.Industrial production manganous sulfate need be used MnO and H
2SO
4Reaction, however the preparation of MnO needs with reduction MnO under the carbon high-temp
2, produce a large amount of CO, seriously polluted.The traditional mode of production of production hydrated barta has multiple, as: ion exchange method, barium oxide method, barium chloride method, barium silicate method, soda processes, zinc oxide and barium sulphide double decomposition, Manganse Dioxide oxidation of sulfureted barium method etc.Present most of production method all because of complex technical process, consume big, cost is high is eliminated.Though it is feasible that Manganse Dioxide oxidation of sulfureted barium legal system is equipped with hydrated barta, but have two big shortcomings: 1) aqueous solution maximum concentration of barium sulphide is no more than 69 grams per liters, low with the barium sulphide concentration of Manganse Dioxide reaction, behind the generation hydrated barta, need evaporate big water gaging and just can make the product crystallization; 2) in stronger basic solution, the mol ratio of Manganse Dioxide and barium sulphide reaction is up to 2.4～4, and need consume a large amount of Manganse Dioxide and can't regain.
Summary of the invention
The purpose of this invention is to provide a kind of processing method of producing hydrated barta and manganous sulfate, can overcome the shortcoming of prior art.The present invention adopts Manganse Dioxide and barium sulphide reaction, obtains hydrated barta and manganous sulfate simultaneously, and raw material is easy to get, and technology is simple, and the productive rate height is pollution-free, has very big economic benefit, environmental benefit and social benefit.
The present invention includes the following step:
(1) with solid barium sulphide water-soluble barium sulfide solution that obtains under 60-85 ℃ of temperature, cooling obtains hydrated barta and barium sulphide crystalline mixture then, filters, and gets product hydrated barta crystal, washes the flush away barium sulphide 1-3 time, and washings returns use.
(2) add Manganse Dioxide in the filtrate, make Ba (HS) in itself and the solution
2Reaction generates the MnO precipitation with BaS.
(3) filter, obtain MnO washing 1-3 time, remove Ba
2+, HS
-, S
2-Behind the ion, MnO dissolves in sulfuric acid again; Remove by filter S, obtain manganese sulfate solution; Described sulfuric acid is 6mol/L.
(4) concentrated vitriol manganese solution, cooling, crystallization obtain the manganous sulfate crystal.
(5) with the filtrate of (3), concentrate, crystallisation by cooling obtains the hydrated barta crystal.
Above-mentioned barium sulfide solution concentration is 1.1mol/L; Under 12-18 ℃ of temperature, cool off.Preferably under 15 ℃ of temperature, cool off.Manganse Dioxide and HS
-And S
2-Molar ratio be 1～1.5: 1, preferably 1.1: 1.
Characteristics of the present invention are: cooling, the crystallization from solution at a certain temperature of shilling barium sulphide, because hydrolytic action has obtained a part of product hydrated barta in the crystallization of separating out, because there is Ba (HS) in a large number in separating out of hydrated barta in the solution
2And BaS, like this, with the Ba (HS) of Manganse Dioxide reaction
2With BaS concentration can be up to 120 grams per liters; On the other hand, owing to separating out of hydrated barta, the basicity of solution reduces, Manganse Dioxide and Ba (HS)
2Can be reduced to 1.1 with the mol ratio of BaS reaction, make the Manganse Dioxide utilization ratio greatly improve, consume greatly and reduce.The utilization ratio of barium ion can recycle in reaction system because contain the washings of barium ion, so can reach 100% in the solution.
Embodiment
Substantive distinguishing features of the present invention and effect can obtain embodying from the following example, but are not limitation of the present invention.
Embodiment 1
, react after 2 hours with putting into 46.5 gram barium sulphide solid and 250ml water in the temperature controlled container at 500ml (1), (2) set by step, and at 18 ℃ of following crystallisation by cooling, barium sulphide is removed in washing again, gets 10.86 gram Ba (OH)
28H
2The O crystal.
Embodiment 2
Press embodiment 1, at 16 ℃ of following crystallisation by cooling, barium sulphide is removed in washing, gets 12.91 gram Ba (OH)
28H
2The O crystal.
Embodiment 3
Press embodiment 1, at 12 ℃ of following crystallisation by cooling, barium sulphide is removed in washing, gets 12.28 gram Ba (OH)
28H
2The O crystal.
Embodiment 4
Press embodiment 1, at 15 ℃ of following crystallisation by cooling, barium sulphide is removed in washing, gets 14.45 gram Ba (OH)
28H
2The O crystal.
Embodiment 5
Under the condition of embodiment 4, add 15.66 gram Manganse Dioxide set by step in (3) solution after step (1) is isolated crystallization, make reacted solid product dissolve in the sulfuric acid of 6mol/L, obtain the product manganous sulfate and make it crystallization, obtain 28.85 gram MnSO
4H
2The O crystal.Yield: 94.84%.
Embodiment 6
Under the condition of embodiment 4, add 16.44 gram Manganse Dioxide in the solution, make reacted solid product dissolve in the sulfuric acid of 6mol/L, obtain the product manganous sulfate and make it crystallization, obtain 30.54 gram MnSO
4H
2The O crystal.Yield: 95.61%.
Embodiment 7
Under the condition of embodiment 4, add 17.22 gram Manganse Dioxide in the solution, make reacted solid product dissolve in sulfuric acid, obtain the product manganous sulfate and make it crystallization, obtain 32.83 gram MnSO
4H
2The O crystal.Yield: 98.12%.
Embodiment 8
Under the condition of embodiment 4, add 18.79 gram Manganse Dioxide in the solution, make reacted solid product dissolve in sulfuric acid, obtain the product manganous sulfate and make it crystallization, obtain 35.21 gram MnSO
4H
2The O crystal.Yield: 96.46%.
Embodiment 9
Under the condition of embodiment 4, add 18.01 gram Manganse Dioxide in the solution, make reacted solid product dissolve in sulfuric acid, obtain the product manganous sulfate and make it crystallization, obtain 33.34 gram MnSO
4H
2The O crystal.Yield: 95.31%.
Embodiment 10
Under the condition of embodiment 7, after obtaining the product manganous sulfate and making it crystallization, filtration, the washings that contain barium ion of filtrate together with (1), (3) recovery set by step concentrated, crystallisation by cooling, obtain hydrated barta crystal 72.00 grams, the hydrated barta crystal that obtains together with embodiment 4 adds up to 86.45 grams.Yield: 99.79%.
Claims (7)
1, a kind of processing method of producing hydrated barta and manganous sulfate is a raw material with Manganse Dioxide and barium sulphide solid, it is characterized in that it comprises the following steps:
(1) with solid barium sulphide water-soluble barium sulfide solution that obtains under 60-85 ℃ of temperature, cooling obtains hydrated barta and barium sulphide crystalline mixture then, filters, and gets product hydrated barta crystal, washes the flush away barium sulphide 1-3 time, and washings returns use;
(2) add Manganse Dioxide in the filtrate, make Ba (HS) in itself and the solution
2Reaction generates the MnO precipitation with BaS;
(3) filter, obtain MnO washing 1-3 time, remove Ba
2+, HS
-, S
2-Behind the ion, MnO dissolves in sulfuric acid again; Remove by filter S, obtain manganese sulfate solution;
(4) concentrated vitriol manganese solution, cooling, crystallization obtain manganous sulfate;
(5) with the filtrate of (3), concentrate, crystallisation by cooling obtains the hydrated barta crystal.
2,, it is characterized in that described step (1) barium sulfide solution concentration is 1.1mol/L according to the processing method of described production hydrated barta of claim 1 and manganous sulfate.
3,, it is characterized in that described step (1) barium sulfide solution is to cool off under the 12-18 ℃ of temperature according to the processing method of described production hydrated barta of claim 1 and manganous sulfate.
4. according to the processing method of described production hydrated barta of claim 3 and manganous sulfate, it is characterized in that described barium sulfide solution is to cool off under 15 ℃ of temperature.
5, according to the processing method of described production hydrated barta of claim 1 and manganous sulfate, it is characterized in that described step (2) Manganse Dioxide and HS
-And S
2-The molar ratio of sum is 1～1.5: 1.
6, according to the processing method of described production hydrated barta of claim 1 and manganous sulfate, it is characterized in that described step (2) Manganse Dioxide and HS
-And S
2-The molar ratio of sum is 1.1: 1.
7,, it is characterized in that described step (3) sulfuric acid is 6mol/L according to the processing method of described production hydrated barta of claim 1 and manganous sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03102418 CN1202013C (en) | 2003-01-28 | 2003-01-28 | Process for united producing barium hydroxide and manganese sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03102418 CN1202013C (en) | 2003-01-28 | 2003-01-28 | Process for united producing barium hydroxide and manganese sulfate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1425613A CN1425613A (en) | 2003-06-25 |
| CN1202013C true CN1202013C (en) | 2005-05-18 |
Family
ID=4790001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03102418 Expired - Fee Related CN1202013C (en) | 2003-01-28 | 2003-01-28 | Process for united producing barium hydroxide and manganese sulfate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1202013C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704554B (en) | 2009-07-16 | 2011-12-07 | 贵州红星发展股份有限公司 | Method for preparing manganese sulfate |
| CN101774619B (en) * | 2009-07-28 | 2011-09-14 | 贵州红星发展股份有限公司 | Method for preparing Ba(OH)2.8H2O |
| CN101798119B (en) * | 2010-03-29 | 2011-12-21 | 贵州红星发展股份有限公司 | Method for preparing manganese sulfate monohydrate |
| CN101838017B (en) | 2010-03-31 | 2012-02-15 | 贵州红星发展股份有限公司 | Method for preparing hydrated manganese sulfate |
| CN103361669B (en) * | 2013-07-30 | 2016-06-29 | 深圳市昊一通投资发展有限公司 | High-performance electrolytic manganese dioxide and preparation method thereof and application |
| CN103613225B (en) * | 2013-12-04 | 2015-11-25 | 贵州红星发展股份有限公司 | The combination treatment method of sulfur-containing waste water and Mn-bearing waste water |
| CN115650300A (en) * | 2022-10-14 | 2023-01-31 | 佛山集美精化科技有限公司 | Method for combined production of manganese carbonate and nano barium sulfate |
-
2003
- 2003-01-28 CN CN 03102418 patent/CN1202013C/en not_active Expired - Fee Related
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|---|---|
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