CN101935068B - Process for producing manganese dioxide by using zinc sulfate oxidized waste mud containing manganese - Google Patents
Process for producing manganese dioxide by using zinc sulfate oxidized waste mud containing manganese Download PDFInfo
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- CN101935068B CN101935068B CN2010105096695A CN201010509669A CN101935068B CN 101935068 B CN101935068 B CN 101935068B CN 2010105096695 A CN2010105096695 A CN 2010105096695A CN 201010509669 A CN201010509669 A CN 201010509669A CN 101935068 B CN101935068 B CN 101935068B
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- mud
- manganese
- zinc sulfate
- press filtration
- sulfate oxidation
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Abstract
The invention relates to a process for producing manganese dioxide by using zinc sulfate oxidized waste mud containing manganese, which comprises the steps of: acidizing, press filtration, rinsing, second press filtration, drying, crushing, and the like. The difficulty of not producing the manganese dioxide by using the zinc sulfate oxidized waste mud containing manganese in the prior art is effectively solved; meanwhile, manganese resources are regenerated, and the pollution of the waste mud to the environment is eliminated.
Description
Technical field
The present invention relates to the useless mud of the manganiferous zinc sulfate oxidation of a kind of recycle is the processing method of raw material production Manganse Dioxide.
Background technology
Manganse Dioxide is a kind of strong oxidizer, and existing Manganse Dioxide production technique mainly contains three kinds, the one, and manganous nitrate method, the 2nd, manganous carbonate method, the 3rd, natural manganese ore activation method.Produce Manganse Dioxide with these processing methodes, all will consume a large amount of high-quality manganese resources and the energy, and can not the manganiferous zinc sulfate oxidation of recycle useless mud produces, can cause certain pollution environment.
Summary of the invention
The object of the present invention is to provide a kind of technology of utilizing the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide.
The objective of the invention is to realize: a kind of technology of utilizing the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide by following approach, the pending useless mud of manganese zinc sulfate oxidation that contains, its composition is by weight percentage: Manganse Dioxide 8-12%, terra alba 10-13%, moisture content 70-75%, zinc hydroxide 2-3%, zinc sulfate 3-4%, other materials 2-4%; The treatment step of this technology is as follows:
A, acidifying
In the reactor that has stirrer, add entry and contain the useless mud of manganese zinc sulfate oxidation, the ratio that adds is that 1 cubic metre of water is joined 1 ton and contained the useless mud of manganese zinc sulfate oxidation, the limit is thrown the mud limit and is stirred, mud stirred add sulfuric acid behind the pulp and carry out acidification reaction, the sulfuric acid that is added and the institute manganiferous zinc sulfate oxidation of throwing are given up, and the weight ratio of zinc hydroxide is 1:1-1.2 in the mud, 50-60 ℃ of temperature of reaction, 30 minutes reaction times, pH value 5-5.5 during reaction terminating;
B, press filtration
Acidification reaction stops the back restir and carried out press filtration in 30 minutes, and the press filtration water that press filtration is discharged reclaims his usefulness, and the wet mud of manganese that contains that press filtration is separated changes next procedure over to;
C, rinsing
The wet mud of manganese that contains that above-mentioned press filtration is separated is transferred in the rinsing container that has stirrer, and the limit is changeed and contained the wet mud limit of manganese and add the waterside and open stirrer, and the ratio that adds water is that 1 cubic metre water is joined 1 ton and contained the wet mud of manganese, after having added water and having contained the wet mud of manganese, and restir 30 minutes;
D, press filtration for the second time
Carry out the press filtration second time with containing manganese mud after the above-mentioned rinsing, the press filtration water that press filtration is discharged is with press filtration hydration for the first time and reclaim his usefulness, and the wet mud of manganese that contains that press filtration is separated changes next procedure over to;
E, drying and pulverizing
With the above-mentioned second time, press filtration was separated contain the wet mud of manganese by kiln dried after crushing packing be the Manganse Dioxide finished product.
Further, in described acidification reaction, contain the useless mud of manganese zinc sulfate oxidation by weight percentage its water content be 70% o'clock, the sulfuric acid that is added and institute throw that to contain the give up weight ratio of the zinc hydroxide in the mud of manganese zinc sulfate oxidation be 1:1.05.
Further, in described acidification reaction, contain the useless mud of manganese zinc sulfate oxidation by weight percentage its water content be 72% o'clock, the sulfuric acid that is added and institute throw that to contain the give up weight ratio of the zinc hydroxide in the mud of manganese zinc sulfate oxidation be 1:1.
The useless mud of manganiferous zinc sulfate oxidation is the useless mud of discharging in the zinc sulfate production process, its main component is a Manganse Dioxide, content is about 8-12%, the invention the useless mud of the manganiferous zinc sulfate oxidation of a kind of recycle processing method of producing Manganse Dioxide, solved the difficult problem that can not the manganiferous zinc sulfate oxidation of the recycle useless mud of existing processing method is produced Manganse Dioxide effectively, regenerated the simultaneously resource of manganese, eliminated of the pollution of this useless mud to environment, developed recycling economy, the construction of favourable " amphitypy " society.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment one, as shown in Figure 1, the technology that the present invention utilizes the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide, the described manganiferous zinc sulfate oxidation mud that gives up, its composition is by weight percentage: Manganse Dioxide 11%, terra alba 11%, moisture content 70%, zinc hydroxide 2%, zinc sulfate 3%, other materials 3%, the treatment step of this technology is as follows:
A, acidifying:
The wet mud that in the reactor that has stirrer, adds the useless mud of entry and manganiferous zinc sulfate oxidation, the ratio that adds is that 1 cubic metre of water is joined the wet mud of the useless mud of 1 ton of manganiferous zinc sulfate oxidation, the limit is thrown the mud limit and is stirred, mud stirred add sulfuric acid behind the pulp and carry out acidification reaction, the sulfuric acid that is added is 1:1.05 with the weight ratio of the zinc hydroxide in the manganiferous zinc sulfate oxidation mud of throwing, 50-60 ℃ of temperature of reaction, 30 minutes reaction times, pH value 5.5 during reaction terminating, the reaction formula of acidification reaction is as follows:
Zn（OH）
2+H
2SO
4=ZnSO
4+2H
2O
B, press filtration
Restir carried out press filtration in 30 minutes after acidification reaction stopped, and the press filtration water that press filtration is discharged is produced zinc sulfate product usefulness because of wherein containing zinc sulfate with its recovery supply.The wet mud of manganese that contains that press filtration is separated changes next procedure over to.
C, rinsing
The wet mud of manganese that contains that above-mentioned press filtration is separated is transferred in the rinsing container that has stirrer, and the limit is changeed and contained the wet mud limit of manganese and add the waterside and open stirrer, and the ratio that adds water is that 1 cubic metre water is joined 1 ton and contained the wet mud of manganese, after having added water and having contained the wet mud of manganese, and restir 30 minutes.
D, press filtration for the second time
Carry out the press filtration second time with containing manganese mud after the above-mentioned rinsing, the press filtration water that press filtration is discharged and the hydration of press filtration are for the first time also reclaimed it to supply with and are produced zinc sulfate product usefulness, and the wet mud of manganese that contains that press filtration is separated changes next procedure over to.
E, drying and pulverizing
With the above-mentioned second time, press filtration was separated contain the wet mud of manganese by kiln dried after crushing packing be manganese dioxide product.
Embodiment two: as shown in Figure 1, the technology that the present invention utilizes the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide, the described manganiferous zinc sulfate oxidation mud that gives up, its composition is by weight percentage: Manganse Dioxide 10.5%, terra alba 10.5%, moisture content 72%, zinc hydroxide 2.2%, zinc sulfate 3.2%, other materials 1.6%, the treatment step of this technology is as follows:
A, acidifying:
The wet mud that in the reactor that has stirrer, adds the useless mud of manganiferous zinc sulfate oxidation in the entry, the ratio that adds is that 1 cubic metre of water is joined the wet mud of the useless mud of 1 ton of manganiferous zinc sulfate oxidation, the limit is thrown and is contained manganese wet mud limit stirring, mud stirred add sulfuric acid behind the pulp and carry out acidification reaction, the sulfuric acid that is added is 1:1 with the weight ratio of the zinc hydroxide in the manganiferous zinc sulfate oxidation mud of throwing, 50-60 ℃ of temperature of reaction, 30 minutes reaction times, pH value 5.2 during reaction terminating, the reaction formula of acidification reaction is as follows:
Zn（OH）
2+H
2SO
4=ZnSO
4+2H
2O
B, press filtration
Restir carried out press filtration in 30 minutes after acidification reaction stopped, and the press filtration water that press filtration is discharged is produced zinc sulfate product usefulness because of wherein containing zinc sulfate with its recovery supply.The wet mud of manganese that contains that press filtration is separated changes next procedure over to.
C, rinsing
The wet mud of manganese that contains that above-mentioned press filtration is separated is transferred in the rinsing container that has stirrer, and the limit is changeed and contained the wet mud limit of manganese and add the waterside and open stirrer, and the ratio that adds water is that 1 cubic metre water is joined 1 ton and contained the wet mud of manganese, after having added water and having contained the wet mud of manganese, and restir 30 minutes.
D, press filtration for the second time
Carry out the press filtration second time with containing manganese mud after the above-mentioned rinsing, press filtration water that press filtration is discharged and drainage merging are for the first time supplied with production zinc sulfate product usefulness with its recovery, and the wet mud of manganese that contains that press filtration is separated changes next procedure over to.
E, drying and pulverizing
With the above-mentioned second time, press filtration was separated contain the wet mud of manganese by kiln dried after crushing packing be manganese dioxide product.
Claims (3)
1. technology of utilizing the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide, the pending useless mud of manganese zinc sulfate oxidation that contains, its composition is by weight percentage: Manganse Dioxide 8-12%, terra alba 10-13%, moisture content 70-75%, zinc hydroxide 2-3%, zinc sulfate 3-4%, other materials 2-4%; It is characterized in that:
The treatment step of this technology is as follows:
A, acidifying
In the reactor that has stirrer, add entry and contain the useless mud of manganese zinc sulfate oxidation, the ratio that adds is that 1 cubic metre of water is joined 1 ton and contained the useless mud of manganese zinc sulfate oxidation, the limit is thrown the mud limit and is stirred, mud stirred add sulfuric acid behind the pulp and carry out acidification reaction, the sulfuric acid that is added and the institute manganiferous zinc sulfate oxidation of throwing are given up, and the weight ratio of zinc hydroxide is 1:1-1.2 in the mud, 50-60 ℃ of temperature of reaction, 30 minutes reaction times, pH value 5-5.5 during reaction terminating;
B, press filtration
Acidification reaction stops the back restir and carried out press filtration in 30 minutes, and the press filtration water that press filtration is discharged reclaims his usefulness, and the wet mud of manganese that contains that press filtration is separated changes next procedure over to;
C, rinsing
The wet mud of manganese that contains that above-mentioned press filtration is separated is transferred in the rinsing container that has stirrer, and the limit is changeed and contained the wet mud limit of manganese and add the waterside and open stirrer, and the ratio that adds water is that 1 cubic metre water is joined 1 ton and contained the wet mud of manganese, after having added water and having contained the wet mud of manganese, and restir 30 minutes;
D, press filtration for the second time
Carry out the press filtration second time with containing manganese mud after the above-mentioned rinsing, the press filtration water that press filtration is discharged is with press filtration hydration for the first time and reclaim his usefulness, and the wet mud of manganese that contains that press filtration is separated changes next procedure over to;
E, drying and pulverizing
With the above-mentioned second time, press filtration was separated contain the wet mud of manganese by kiln dried after crushing packing be the Manganse Dioxide finished product.
2. the technology of utilizing the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide as claimed in claim 1, it is characterized in that: in described acidification reaction, contain the useless mud of manganese zinc sulfate oxidation by weight percentage its water content be 70% o'clock, the sulfuric acid that is added and institute throw that to contain the give up weight ratio of the zinc hydroxide in the mud of manganese zinc sulfate oxidation be 1:1.05.
3. the technology of utilizing the useless mud of manganiferous zinc sulfate oxidation to produce Manganse Dioxide as claimed in claim 1, it is characterized in that: in described acidification reaction, contain the useless mud of manganese zinc sulfate oxidation by weight percentage its water content be 72% o'clock, the sulfuric acid that is added and institute throw that to contain the give up weight ratio of the zinc hydroxide in the mud of manganese zinc sulfate oxidation be 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105096695A CN101935068B (en) | 2010-10-18 | 2010-10-18 | Process for producing manganese dioxide by using zinc sulfate oxidized waste mud containing manganese |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105096695A CN101935068B (en) | 2010-10-18 | 2010-10-18 | Process for producing manganese dioxide by using zinc sulfate oxidized waste mud containing manganese |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101935068A CN101935068A (en) | 2011-01-05 |
| CN101935068B true CN101935068B (en) | 2011-11-09 |
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ID=43388676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105096695A Expired - Fee Related CN101935068B (en) | 2010-10-18 | 2010-10-18 | Process for producing manganese dioxide by using zinc sulfate oxidized waste mud containing manganese |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU523554B2 (en) * | 1977-09-17 | 1982-08-05 | Interox Chemicals Ltd. | Recovering manganese values and purification of zinc sulphate |
| CN87102008A (en) * | 1987-03-27 | 1988-10-19 | 中南工业大学 | From waste zinc manganese dry battery, extract the method for Manganse Dioxide and zinc |
| CN1263896C (en) * | 2004-03-23 | 2006-07-12 | 广州市环境保护科学研究所 | Method for extracting zinc and manganese dioxide from waste dry batteries |
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2010
- 2010-10-18 CN CN2010105096695A patent/CN101935068B/en not_active Expired - Fee Related
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