CN104229897A - Preparing method for manganese nitrate solution - Google Patents
Preparing method for manganese nitrate solution Download PDFInfo
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- CN104229897A CN104229897A CN201410507905.8A CN201410507905A CN104229897A CN 104229897 A CN104229897 A CN 104229897A CN 201410507905 A CN201410507905 A CN 201410507905A CN 104229897 A CN104229897 A CN 104229897A
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- Prior art keywords
- solution
- manganese
- nitrate solution
- nitric acid
- double
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- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 25
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 22
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 39
- 229910017604 nitric acid Inorganic materials 0.000 claims description 39
- 230000003647 oxidation Effects 0.000 claims description 23
- 238000007254 oxidation reaction Methods 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 22
- 229910002651 NO3 Inorganic materials 0.000 abstract description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 239000011572 manganese Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 230000035484 reaction time Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000376 reactant Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The embodiment of the invention discloses a preparing method for a manganese nitrate solution. The method comprises the following steps: mixing a nitrate solution and a hydrogen peroxide solution to obtain a double-component oxidizing solution; reacting after mixing the metallic manganese with the double-component oxidizing solution to obtain the manganese nitrate solution. According to the invention, after the double-component oxidizing solution is obtained through mixing the nitrate solution and the hydrogen peroxide solution, the manganese nitrate solution is obtained through the reaction of the obtained double-component oxidized solution with the metallic manganese. Compared with the method in the prior art that the manganese nitrate solution is obtained through the direct reaction of a nitrate solution with the metallic manganese, the preparing method provided by the utility model has the advantages that the reaction rate of the preparing method is obviously improved; besides, as reaction can be carried out by adopting nitrate with relatively lower concentration, and the production cost is reduced.
Description
Technical field
The present invention relates to field of solution preparation, particularly the preparation method of manganese nitrate solution.
Background technology
Manganese nitrate solution, mainly for the manufacture of Manganse Dioxide, can also be used as catalyzer, ceramic colorant, metal phosphorizing agent, analytical reagent etc.Its preparation method is a lot, but consider the factors such as the purity in manganese source and price, at present, industrial one of the method preparing manganese nitrate solution that is used for adopts manganese metal to be that manganese source and nitric acid carry out reaction to prepare manganous nitrate, and its reaction equation is as follows:
3Mn+8HNO
3＝3Mn(NO
3)
2+2NO+4H
2O
From above-mentioned reaction formula, this reaction is that manganese metal is dissolved and the reaction be oxidized by nitric acid, when adopting the nitric acid (massfraction be 65%, 58% etc.) of low concentration to react, speed of reaction is slower, when adopting the nitric acid (massfraction is 98%) of higher concentration to react, although speed of reaction is accelerated, the price due to the nitric acid of commercially available higher concentration is generally more than 2 times of dust technology, so cost also increases greatly.
Therefore, there is again the preparation method of the manganese nitrate solution of fast reaction rate while finding a kind of nitric acid reaction adopting low concentration, just seeming especially important.
Summary of the invention
For solving the problem, the embodiment of the invention discloses the preparation method of manganese nitrate solution.Technical scheme is as follows:
The preparation method of manganese nitrate solution, the method can comprise:
Aqueous nitric acid is mixed with aqueous hydrogen peroxide solution, obtained double-component oxidation solution;
React after manganese metal is mixed with described double-component oxidation solution, obtain manganese nitrate solution.
Wherein, in obtained double-component oxidation solution, the massfraction of nitric acid is 8% ~ 45%.
Preferably, in obtained double-component oxidation solution, the massfraction of nitric acid is 25% ~ 43%.
In obtained double-component oxidation solution, the massfraction of hydrogen peroxide is 8% ~ 27%.
Preferably, in obtained double-component oxidation solution, the massfraction of hydrogen peroxide is 8% ~ 17%.
Aqueous nitric acid mixes with aqueous hydrogen peroxide solution by the present invention, after obtaining double-component oxidation solution, manganese nitrate solution is obtained by reacting with the double-component oxidation solution obtained and manganese metal, compared with the direct aqueous nitric acid of prior art is obtained by reacting manganese nitrate solution with manganese metal, speed of reaction significantly improves, and due to the lower nitric acid of relative concentration can be adopted to react, reduce production cost.
Embodiment
Present inventor prepares in the process of manganese nitrate solution utilizing prior art, find: when utilizing manganese metal and aqueous nitric acid prepares manganese nitrate solution unexpectedly, if first a certain amount of aqueous hydrogen peroxide solution is mixed with aqueous nitric acid, obtained double-component oxidation solution, recycle this double-component oxidation solution and manganese metal to prepare manganese nitrate solution, speed of reaction significantly improves, and the reaction times obviously shortens.
Be described technical scheme of the present invention below in conjunction with specific embodiment, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The preparation method of manganese nitrate solution provided by the present invention, its foundation reaction equation be:
3Mn+8HNO
3→3Mn(NO
3)
2+2NO+4H
2O
In an embodiment of the present invention, for the ease of observing, judging the end time of preparation feedback, need to ensure nitric acid and manganese metal complete reaction; Therefore, in manganese metal used and aqueous nitric acid, the mol ratio of nitric acid is 3:8.Like this, when being dissolved completely by manganese metal, just can determine that reaction terminates.
Embodiment 1
By 3.0042g massfraction be 30% aqueous hydrogen peroxide solution to be added to 8.1011g massfraction be in the aqueous nitric acid of 58%, stir, obtained double-component oxidation solution, wherein, the massfraction of nitric acid is 42.31%, and the massfraction of hydrogen peroxide is 8.12%;
Take 1.5400g manganese metal, joined in double-component oxidation solution, react, obtain pink manganese nitrate solution, the reaction times is 150 minutes, and the massfraction of manganese nitrate solution is 53.27%.
Embodiment 2 ~ 17
Adopt each reactant and consumption thereof in table 1, with reference to preparation method described in embodiment 1, prepare the manganese nitrate solution of embodiment 2 ~ 17 respectively, the reaction times is recorded in table 1.
The reactant species of table 1 embodiment 2 ~ 17, reactant consumption and reaction times
Note: in aqueous nitric acid used in embodiment 2 ~ 9, the massfraction of nitric acid is 58%; In aqueous nitric acid used in embodiment 10 ~ 17, the massfraction of nitric acid is 65%.
Comparative example 1
Take 1.5334g manganese metal, being joined 8.1011g massfraction is react in the aqueous nitric acid of 58%, and result is: the reaction times was more than 720 minutes.
Comparative example 2
Take 1.5331g manganese metal, being joined 7.2134g massfraction is react in the aqueous nitric acid of 65%, and result is: the reaction times was more than 720 minutes.
Embodiment 1 ~ 17 and comparative example 1 ~ 2 are compared, can find out, when only reacting with aqueous nitric acid and manganese metal, speed of reaction is very slow, reacts after 720 minutes, does not still terminate.
But aqueous nitric acid is mixed obtained double-component oxidation solution with aqueous hydrogen peroxide solution after, then react with manganese metal, as the embodiment 1 ~ 17 in table 1, speed of reaction obviously promotes.
Especially in embodiment 7, the massfraction of the nitric acid in double-component oxidation solution is 14.09%, and the massfraction of hydrogen peroxide is 22.71%, and now, the whole reaction times only has 4 minutes, and compared with comparative example 1 ~ 2, speed of reaction improves more than 180 times.
The massfraction being used for preparing double-component oxidation solution aqueous nitric acid used in embodiment 1 ~ 17 and comparative example 1 ~ 2 is 58% or 65%.Why with the aqueous nitric acid of these two kinds of specifications, be because the aqueous nitric acid of these two kinds of specifications is easy to directly buy.It should be noted that, 58% alleged by the embodiment of the present invention, 65% aqueous nitric acid and commercially available alleged massfraction be 58%, 65% concentrated nitric acid is consistent in essence.
The aqueous hydrogen peroxide solution used in embodiment 1 ~ 17 and comparative example 1 ~ 2 is commercially available massfraction is the aqueous hydrogen peroxide solution of 30%, be understandable that, the concentration of aqueous hydrogen peroxide solution does not affect the enforcement of technical solution of the present invention, the present invention does not do concrete restriction at this, and those skilled in the art can select the concentration of aqueous hydrogen peroxide solution according to practical situation.
Aqueous nitric acid mixes with aqueous hydrogen peroxide solution by the present invention, after obtaining double-component oxidation solution, manganese nitrate solution is obtained by reacting with the double-component oxidation solution obtained and manganese metal, compared with the direct aqueous nitric acid of prior art is obtained by reacting manganese nitrate solution with manganese metal, speed of reaction significantly improves, and due to the lower nitric acid of relative concentration can be adopted to react, reduce production cost.
Above the preparation method of manganese nitrate solution provided by the present invention is described in detail.Apply specific embodiment herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and clou thereof for helping.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (5)
1. the preparation method of manganese nitrate solution, is characterized in that, the method comprises:
Aqueous nitric acid is mixed with aqueous hydrogen peroxide solution, obtained double-component oxidation solution;
React after manganese metal is mixed with described double-component oxidation solution, obtain manganese nitrate solution.
2. the method for claim 1, is characterized in that, in obtained double-component oxidation solution, the massfraction of nitric acid is 8% ~ 45%.
3. method as claimed in claim 2, it is characterized in that, in obtained double-component oxidation solution, the massfraction of nitric acid is 25% ~ 43%.
4. the method for claim 1, is characterized in that, in obtained double-component oxidation solution, the massfraction of hydrogen peroxide is 8% ~ 27%.
5. method as claimed in claim 4, it is characterized in that, in obtained double-component oxidation solution, the massfraction of hydrogen peroxide is 8% ~ 17%.
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| CN201410507905.8A CN104229897A (en) | 2014-09-28 | 2014-09-28 | Preparing method for manganese nitrate solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507905.8A CN104229897A (en) | 2014-09-28 | 2014-09-28 | Preparing method for manganese nitrate solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821329A (en) * | 2018-07-10 | 2018-11-16 | 成都中建材光电材料有限公司 | A kind of preparation method of high-purity gallium oxide |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3731899A1 (en) * | 1987-09-23 | 1989-04-27 | Klaus Prof Mangold | Process for separating off nitrogen oxides from exhaust gases of furnaces |
| SU1682315A1 (en) * | 1989-06-06 | 1991-10-07 | Предприятие П/Я А-3481 | Method for preparation of manganese (11) nitrate solution |
| RU2410329C1 (en) * | 2009-08-31 | 2011-01-27 | Открытое акционерное общество "Элеконд" | Method of producing highly pure hexahydrate of manganese nitrate |
| CN103435103A (en) * | 2013-08-15 | 2013-12-11 | 贵州红星发展股份有限公司 | High-purity manganous nitrate and preparation method thereof |
-
2014
- 2014-09-28 CN CN201410507905.8A patent/CN104229897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3731899A1 (en) * | 1987-09-23 | 1989-04-27 | Klaus Prof Mangold | Process for separating off nitrogen oxides from exhaust gases of furnaces |
| SU1682315A1 (en) * | 1989-06-06 | 1991-10-07 | Предприятие П/Я А-3481 | Method for preparation of manganese (11) nitrate solution |
| RU2410329C1 (en) * | 2009-08-31 | 2011-01-27 | Открытое акционерное общество "Элеконд" | Method of producing highly pure hexahydrate of manganese nitrate |
| CN103435103A (en) * | 2013-08-15 | 2013-12-11 | 贵州红星发展股份有限公司 | High-purity manganous nitrate and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821329A (en) * | 2018-07-10 | 2018-11-16 | 成都中建材光电材料有限公司 | A kind of preparation method of high-purity gallium oxide |
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Application publication date: 20141224 |