CN102110825A - Recovery processing method of waste dry battery - Google Patents
Recovery processing method of waste dry battery Download PDFInfo
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- CN102110825A CN102110825A CN2009102008952A CN200910200895A CN102110825A CN 102110825 A CN102110825 A CN 102110825A CN 2009102008952 A CN2009102008952 A CN 2009102008952A CN 200910200895 A CN200910200895 A CN 200910200895A CN 102110825 A CN102110825 A CN 102110825A
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- Prior art keywords
- heating
- dry batteries
- treatment method
- used dry
- recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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- Processing Of Solid Wastes (AREA)
- Primary Cells (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a recovery processing method of waste dry batteries, which is characterized in that the method comprises the following steps: step 1, classifying and fragmenting waste dry batteries, removing carbon rods, dissolving residual internal substances, standing and filtering; step 2, adding dilute sulfuric acid into the filtered insoluble substances, dissolving again, and filtering again; step 3, burning the filtered insoluble substances till no smoking or spark, heating continuously for 2 to 3 min, stopping heating, and recovering residual solids. Compared with the prior art, the invention with above construction can effectively prevent the harms of waste batteries to environment and health, recovers zinc and manganese for battery production once again, saves resources, and creats great economic benefits; and the recovery processing method does not relate to fragmentation and roasting, is easy to control, does not generate new pollution sources, has little equipment investment and low power consumption.
Description
Technical field
The present invention relates to a kind of battery, relate in particular to a kind of used dry batteries recovery and treatment method.
Background technology
The kind of battery is a lot, and battery commonly used mainly is dry cell, storage battery, and the little minicell of volume.Dry cell, formal name used at school primary cell, dry cell are a kind of chemical power sources, and it is a kind of device that chemical energy is changed into electric energy.Because its electrolyte of this chemical power device is a kind of pastel that can not flow, thus be called dry cell, but this is to say with respect to the battery with flowing electrolyte.Dry cell is not only applicable to flashlight, transistor radio, radio-cassette player, camera, electronic clock, toy etc., and is applicable to the every field in the national economy such as national defence, scientific research, telecommunications, navigation, aviation, medical science.
Though refuse battery is little, endanger very big.After a button cell is abandoned the Nature, can pollute 600,000 premium on currency.Along with the increase of battery consumption, it is serious that the pollution of dry cell more and more seems.On the other hand, the main matter of forming dry cell only has seldom a part participate in reaction in battery discharge procedure, can recycle fully.According to statistics, China is used for about 150,000 tons of the zinc that dry cell produces every year, and manganese dioxide is about 250,000 tons, if it is huge to recycle visible economic and social benefits.Reclaiming the relatively more typical technology of used dry batteries is: fragmentation-roasting-leaching-purification-electrodeposition, produce electrolytic zinc and manganese dioxide simultaneously; Or will leach the manufacturing Zn-Mn trace element fertilizer after the dry cell fragmentation: or with making lithopone and industrial chemicals behind the used dry batteries production zinc oxide.All relate to fragmentation and roasting in the above-mentioned technology, fragmentation and roasting process are wayward, form new pollutant sources easily.Not only equipment investment is big in the processing of tail gas in the roasting process (mainly being to reclaim zinc and handle mercury), plant maintenance is frequent and difficult, and is careless slightly, very easily causes tail gas to leak and the formation mercury pollution, tail gas recycle equipment also is the big power consumer, and fragmentation will cause dust and noise pollution.
Summary of the invention
The object of the present invention is to provide a kind of used dry batteries recovery and treatment method, can prevent effectively that refuse battery is to environment and healthy harm, reclaim zinc-manganese etc. simultaneously and be used for battery production once more, economize on resources, create great economic benefit, and this recovery and treatment method does not relate to fragmentation and roasting, control easily, can not form new pollutant sources, equipment investment is little, and power consumption is few.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of used dry batteries recovery and treatment method is characterized in that, comprises the steps:
Step 1, classification is broken, takes out carbon-point, and dissolving residue inner material leaves standstill the back and filters;
Step 2 adds dilute sulfuric acid with the insoluble matter after filtering and dissolves once more, filters once more;
Step 3 with the insoluble matter calcination after filtering, when no longer smoldering and Mars is arranged, continues heating after 2 to 3 minutes, stops heating, reclaims remaining solid.
Above-mentioned used dry batteries recovery and treatment method wherein, uses funnel to filter in described step 1 and the step 2.
Above-mentioned used dry batteries recovery and treatment method wherein, uses the strong fiery calcination of alcohol blast burner to insoluble matter in the described step 3.
Above-mentioned used dry batteries recovery and treatment method wherein, places the evaporating dish heating evaporation with the filtrate in the described step 1, uses little fire heating instead after having crystal to occur, and constantly stirs, and during only surplus small amount of liquid, stops heating in the ware to be evaporated.
Above-mentioned used dry batteries recovery and treatment method, wherein, with the crucible of packing into of gained solid behind the heating evaporation, cover lid, heating, the time is less than 2 minutes, reclaims the solid on crucible bottom and mouth of pot and the lid respectively.
Above-mentioned used dry batteries recovery and treatment method, wherein, hydro-oxidation sodium in the filtrate in described step 1 obtains mercury oxide after the filtration, heating again, the mercury of cooling volatilization reclaims the back sealing with mercury and preserves then.
Owing to adopted said structure, the present invention has the following advantages compared to existing technology:
1. used dry batteries recovery and treatment method of the present invention can effectively prevent refuse battery to environment and healthy harm, reclaims zinc-manganese etc. simultaneously and is used for battery production once more, economizes on resources, and creates great economic benefit.
2. used dry batteries recovery and treatment method of the present invention does not relate to fragmentation and roasting, and control can not form new pollutant sources easily, and equipment investment is little, and power consumption is few.
Embodiment
Below embodiments of the present invention are described in further detail:
A kind of used dry batteries recovery and treatment method wherein, comprises the steps:
Step 1, classification is broken, takes out carbon-point, and dissolving residue inner material leaves standstill the back and filters;
Step 2 adds dilute sulfuric acid with the insoluble matter after filtering and dissolves once more, filters once more; This process makes water manganese stone (MnOOH) be transformed into MnO
2Equation is as follows,
2MnOOH+H
2SO
4＝MnO
2+MnSO
4+2H
2O
Step 3 with the insoluble matter calcination after filtering, when no longer smoldering and Mars is arranged, continues heating after 2 to 3 minutes, stops heating, reclaims remaining solid.Equation is as follows,
Wherein, use funnel to filter in described step 1 and the step 2.In the described step 3 insoluble matter is used the strong fiery calcination of alcohol blast burner.
Filtrate in the described step 1 is placed the evaporating dish heating evaporation, use little fire heating instead after having crystal to occur, and constantly stir, during only surplus small amount of liquid, stop heating in the ware to be evaporated.With the crucible of packing into of gained solid behind the heating evaporation, cover lid, heating, the time is less than 2 minutes, reclaims the solid on crucible bottom and mouth of pot and the lid respectively.Equation is as follows,
NH
4Cl＝＝NH
3↑+HCl↑·
NH
3+HCl＝＝NH
4Cl
Wherein, using crucible heating process is to utilize sal-ammoniac about 350 ℃ decomposition reaction to take place, with it and ZnCl
2Separate.By the time after crucible cooled off substantially, uncap was found that in the crucible all be white powder, but is separated.Near the bottom is ZnCl
2, crucible mouth and that cover is exactly NH
4Cl.
Hydro-oxidation sodium in the filtrate in described step 1 obtains mercury oxide after the filtration, heating again, and the mercury of cooling volatilization reclaims the back sealing with mercury and preserves then.Because mercury is poisonous, so we must preserve the mercury sealing, or form corresponding mercury salt and preserve.HgCl
2Can generate mercury oxide with alkali reaction, in the time of 500 ℃, mercury oxide resolves into Hg and O
2, equation is as follows,
HgCl
2+2NaOH＝＝HgO+2NaCl+H
2O
2HgO＝＝Hg+O
2↑
Reclaim the subsequent processes of product:
MnO
2Can make KClO
3System O
2Catalyst or generate Cl with dense HCl reaction
2, equation is as follows,
4HCl+MnO
2＝＝2H
2O+MnCl
2+Cl
2↑
ZnCl
2Can utilize the both sexes of Zn ion, equation is as follows,
Zn
2++2OH
-＝＝Zn(OH)
2
Zn(OH)
2+2OH
-＝＝ZnO
2 2-+2H
2O
The thicker rolled tin of one deck is arranged on the shell of battery.Zinc is broad-spectrum metal.Oxidized rolled tin in the refuse battery can utilize the manufacturing battery once more, or carry out other industrial production after purifying.ZnCl
2Also can be used for the manufacturing of battery once more.
NH
4Cl does not still make the raw material of battery, but also is the organic chemical fertilizer of using always.Under the situation of heating, also can obtain hydrogen chloride gas and nitrogen.Hydrogen chloride gas can be made into broad-spectrum hydrochloric acid, and nitrogen can be used in the making chemical fertilizer.
Mercury can separate in theory, but because the mercury content in the batteries is very little, has only several ppm, in fact is difficult to extract mercury again, so appeal the manufacturer production mercury-free battery.
Carbon and manganese dioxide, water manganese stone, these three kinds of materials are difficult separation, but through calcination, carbon becomes carbon dioxide, and water manganese stone can resolve into manganese dioxide, and in addition, carbon dust is good fuel.
Claims (6)
1. a used dry batteries recovery and treatment method is characterized in that, comprises the steps:
Step 1, classification is broken, takes out carbon-point, and dissolving residue inner material leaves standstill the back and filters;
Step 2 adds dilute sulfuric acid with the insoluble matter after filtering and dissolves once more, filters once more;
Step 3 with the insoluble matter calcination after filtering, when no longer smoldering and Mars is arranged, continues heating after 2 to 3 minutes, stops heating, reclaims remaining solid.
2. used dry batteries recovery and treatment method according to claim 1 is characterized in that, uses funnel to filter in described step 1 and the step 2.
3. used dry batteries recovery and treatment method according to claim 1 is characterized in that, in the described step 3 insoluble matter is used the strong fiery calcination of alcohol blast burner.
4. used dry batteries recovery and treatment method according to claim 1 is characterized in that, the filtrate in the described step 1 is placed the evaporating dish heating evaporation, use little fire heating after having crystal to occur instead, and constantly stir, during only surplus small amount of liquid, stop heating in the ware to be evaporated.
5. used dry batteries recovery and treatment method according to claim 4 is characterized in that, with the crucible of packing into of gained solid behind the heating evaporation, and cover lid, heating, the time is less than 2 minutes, reclaims the solid on crucible bottom and mouth of pot and the lid respectively.
6. used dry batteries recovery and treatment method according to claim 1 is characterized in that, hydro-oxidation sodium in the filtrate in described step 1 obtains mercury oxide after the filtration, heating again, and the mercury of cooling volatilization reclaims the back sealing with mercury and preserves then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102008952A CN102110825A (en) | 2009-12-25 | 2009-12-25 | Recovery processing method of waste dry battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102008952A CN102110825A (en) | 2009-12-25 | 2009-12-25 | Recovery processing method of waste dry battery |
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| Publication Number | Publication Date |
|---|---|
| CN102110825A true CN102110825A (en) | 2011-06-29 |
Family
ID=44174904
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|---|---|---|---|
| CN2009102008952A Pending CN102110825A (en) | 2009-12-25 | 2009-12-25 | Recovery processing method of waste dry battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943865A (en) * | 2021-10-15 | 2022-01-18 | 刘佳杉 | Environment-friendly cleaning equipment and process for recycling dry batteries |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022413A1 (en) * | 2006-08-21 | 2008-02-28 | Lg Eletronics De São Paulo Ltda | Process for the separation and extraction of used li-ion batteries |
-
2009
- 2009-12-25 CN CN2009102008952A patent/CN102110825A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022413A1 (en) * | 2006-08-21 | 2008-02-28 | Lg Eletronics De São Paulo Ltda | Process for the separation and extraction of used li-ion batteries |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943865A (en) * | 2021-10-15 | 2022-01-18 | 刘佳杉 | Environment-friendly cleaning equipment and process for recycling dry batteries |
| CN113943865B (en) * | 2021-10-15 | 2023-01-10 | 刘佳杉 | Environment-friendly cleaning equipment and process for recycling dry batteries |
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Application publication date: 20110629 |