CN101899575A - Waste lead storage battery acid type wet method process - Google Patents
Waste lead storage battery acid type wet method process Download PDFInfo
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- CN101899575A CN101899575A CN2010102554155A CN201010255415A CN101899575A CN 101899575 A CN101899575 A CN 101899575A CN 2010102554155 A CN2010102554155 A CN 2010102554155A CN 201010255415 A CN201010255415 A CN 201010255415A CN 101899575 A CN101899575 A CN 101899575A
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- storage battery
- waste lead
- lead storage
- autoclave
- wet method
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000002699 waste material Substances 0.000 title claims abstract description 42
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000003860 storage Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 235000011149 sulphuric acid Nutrition 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims abstract description 4
- 239000006071 cream Substances 0.000 claims description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000005188 flotation Methods 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000001117 sulphuric acid Substances 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims 1
- 235000003891 ferrous sulphate Nutrition 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000010802 sludge Substances 0.000 abstract 4
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 abstract 1
- 229940095054 ammoniac Drugs 0.000 abstract 1
- 235000012501 ammonium carbonate Nutrition 0.000 abstract 1
- 239000001099 ammonium carbonate Substances 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 238000003672 processing method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000011505 plaster Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000008098 formaldehyde solution Substances 0.000 description 2
- 150000002611 lead compounds Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229960002050 hydrofluoric acid Drugs 0.000 description 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a waste lead storage battery acid type wet method process which comprises the following steps of: (1) delivering a waste lead storage battery into a crusher for separating sulfuric acid, a plastic shell and a partition plate; (2) transferring a crushed waste lead storage battery residue into a mechanical separator for processing and separating to obtain a grid and activated sludge; (3) processing the activated sludge by using a reducing agent with the concentration of 11-17 percent, transferring the activated sludge into a first autoclave for dissolving with an ammoniac solution, transferring the activated sludge into a second autoclave for converting with ammonium carbonate, settling, pressing and filtering; (4) dissolving and purifying a sediment obtained in the step (3) by using soluble acid or alkali with the concentration of 25-35 percent in the temperature environment of 45-50 DEG C and settling and crystallizing by using a sulfuric acid solution to obtain anode paste and cathode paste; and (5) respectively coating the anode paste and the cathode paste on plates and switching on the coating plates in an H2SO4 solution with specific gravity of 1-2 to obtain an anode plate and a cathode plate of a novel lead storage battery. The invention has the advantages of simple processing flow, lower production cost and great market value.
Description
Technical field
The present invention relates to a kind of Treatment of Waste Lead Storage Battery method, this method obtains lead plaster after the waste lead accumulator that reclaims is handled, and directly utilizes the lead plaster electrolysis to make the positive and negative pole plate of new lead storage battery.
Background technology
Along with the progress of science and technology and the raising of people's living standard, the application of lead storage battery almost relates to the every aspect that people produce, live, but, follow and come the depleted lead storage battery that environment has been caused serious pollution, therefore, the green technology of processing waste lead accumulator is subjected to the attention of country day by day.
The Treatment of Waste Lead Storage Battery method mainly contains two kinds of thermal process and wet processings.Enterprise at a lot of special disposal waste lead accumulators, the main at present still traditional thermal process that adopts, promptly waste lead accumulator is carried out pyroprocessing by reverberatory furnace, blast furnace, cupola furnace etc., this thermal process is in smelting process, need to reach 1000～1200 ℃ high temperature in the stove, in treating processes, also can produce the gas of heavily contaminateds such as a large amount of plumbous steams, lead fume dirt and sulfurous gas simultaneously.Therefore, this treatment process can cause serious environmental to pollute and the wasting of resources, and processing cost is also very high simultaneously, and the wet processing by environment-friendly type gradually replaces.
The most representative wet processing mainly comprises following 2 kinds both at home and abroad at present:
A kind of is " GS " facture that Italy proposes, and its method is that waste lead accumulator is cut, and emits the H of internal storage battery
2SO
4, add lime then, make the SO in the store battery
4 2-Become CaSO
4, again with Pb and PbSO
4The electrolysis of dissolving back makes Pb be deposited on negative electrode and obtains lead bullion.Wherein adopting the boron fluoric acid is electrolytic solution, and this technology is in the history in existing more than 50 year of Italy.
Another kind is the solid phase reduction electrolytic process that China Chinese Academy of Sciences proposes, and this method is waste lead accumulator to be carried out mechanical separation handle, then with the H in the store battery
2SO
4With high price lead compound in Pb powder and the filler (as PbO
2) reduction is converted into lead compound at a low price, pretreated lead plaster (filler) made the paste spread type negative electrode, with anode
–The electrolysis that is assembled into that negative electrode is orderly is piled, and carries out the solid phase reduction electrolysis in being full of the electrolyzer of rare NaOH, and making Pb in cathodic reduction.
In above two kinds of wet processing process, though it finally can both make Pb in cathodic reduction,, but there is following defective in they: 1, processing step is too complicated, and operating process is loaded down with trivial details, and the rate of recovery of Pb is also lower; 2, owing to need the processing unit of use more, cause the maintenance cost and the processing cost of equipment all too high, this makes by waste lead accumulator being reduced the value of the value of prepared Pb and the prepared Pb of common direct production suitable substantially, and the mode of common direct production Pb is obviously simpler, and this difficulty that causes present processing method to be applied is very big.
Summary of the invention
At above-mentioned deficiency of the prior art, main purpose of the present invention is to solve at present when handling waste lead accumulator too complicated problems of technical process, and the waste lead accumulator treatment process that a kind of treatment scheme is simpler, production cost is lower method is provided.
Technical scheme of the present invention: waste lead storage battery acid type wet method process, it is characterized in that, comprise the steps:
1) waste lead accumulator is carried out break process through artificial or crusher, sulfuric acid, plastic casing and dividing plate in the waste lead accumulator are separated, and plastic casing after separating and dividing plate are carried out the reclaiming clean processing according to prior art respectively;
2) will change the mechanical separation machine through the waste lead accumulator surplus materials after the described break process of step 1) over to and also adopt the vibration flotation process to handle, obtain grid and active mud after the separation;
3) be that 11% ~ 17% reductive agent carries out the ionization reduction and handles with quality than concentration earlier with described active mud, change over to again in first autoclave, change over to then in second autoclave and transform with volatile salt with the ammonia soln dissolving, and in normal temperature and pressure precipitation press filtration down;
4) be that 25% ~ 35% solubility acid or alkali under 45 ℃ ~ 50 ℃ temperature environments dissolve purification with quality than concentration with step 3) gained throw out,, and then obtain anodal cream mud and negative pole cream mud again with sulphuric acid soln precipitation, crystallization;
5) with anodal cream mud and negative pole cream mud coated plate respectively, with two green plates behind the described coated plate through dehydration, solidify, after dry, the Balance Treatment, be 1 ~ 2 H at mass ratio
2SO
4Switch in the solution, and then make the positive plate and the negative plate of new lead storage battery.When carrying out electrolysis, the anodal chemical equation is: PbSO
4+ 2 H
2O-2e=PbO
2+ 3H
+ HSO
4 
, the chemical equation of negative pole is: PbSO
4+ H
+ 2e=
Pb+HSO
4
Processing method of the present invention, mode with streamlined operation is separated waste lead accumulator, transform, purify, and then directly obtain the positive and negative pole plate of new lead storage battery, the technical process of having simplified middle recovery, separation, purification greatly and having made again, produce the positive and negative pole plate of lead storage battery the reliable technique support is provided for realizing fully automated, also save resource simultaneously, reduced cost, had great marketable value.
With respect to prior art, the present invention has the following advantages:
1, processing method of the present invention does not only consume chemical reagent and raw material, and realized sulfuric acid in the waste lead accumulator, plastics, grid, classification such as lead plaster is reclaimed and is refined and handle, eliminate thermal process and smelted the waste residue of leaded and sulfurous gas in the waste lead accumulator, the secondary pollution of waste gas, also overcome simultaneously technical process complexity in the existing wet processing waste lead accumulator technology, lead recovery low and can only make merely the reduction Pb defective, method processing step of the present invention still less, operate easier, the requisite quality of pole plate, plumbous total yield can reach more than 97.7%.
2, the required equipment of other technologies is still less relatively for the required equipment of processing method of the present invention, therefore the maintenance cost of equipment is lower relatively, this makes the auxiliary raw material cost in the entire treatment technology reduce relatively, the final total cost of handling waste lead accumulator that makes reduces greatly, and this is more conducive to processing method of the present invention is used and promoted.
3, processing method of the present invention is by carrying out organic the combination with the making flow process of Pb with the flow process of making chloride plate of Pb, therefore after electrolysis, can directly make new lead storage battery positive/negative plate, this has simplified the making flow process of chloride plate greatly, the more important thing is the production cost that has reduced enterprise, have great using value.
Description of drawings
Accompanying drawing is waste lead accumulator processing technological flow figure of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment 1: as shown in Figure 1, a kind of waste lead storage battery acid type wet method process comprises the steps:
1) waste lead accumulator is carried out break process through artificial or crusher, sulfuric acid, plastic casing and dividing plate in the waste lead accumulator are separated, and the plastic casing after separating and dividing plate are carried out reclaiming clean according to prior art respectively handle, wherein plastic casing is broken and can makes plastic plate again after the dissolving;
2) will change the mechanical separation machine through the waste lead accumulator surplus materials after the described break process of step 1) over to also adopts the vibration flotation process to handle, obtain grid and active mud after the separation, wherein grid can be made into the multicomponent lead alloy ingot after allocating composition and refining; Need to prove, the crusher of mentioning in step 1 and the step 2, mechanical separation machine and vibration flotation process all have existing common equipment or method, for example application number is that 200910068329.0 Chinese patent " multi-stage countercurrent contact vibration formula flotation tower and technology " discloses a kind of vibration flotation process, same, the technical scheme of described crusher and mechanical separation machine also is that those skilled in the art can obtain.
3) be that 11% formaldehyde solution is carried out the ionization reduction and handled with quality than concentration earlier with described active mud, change over to again in first autoclave and under 7 normal atmosphere pressure, dissolve with ammonia soln, changing over to then in second autoclave at pressure is 5 normal atmosphere, temperature is to transform with volatile salt under 90 ℃ the environment, and in normal temperature and pressure precipitation press filtration down;
4) be that 25% formic acid dissolves purification than concentration with step 3) gained throw out under 47 ℃ of temperature environments,, and then obtain anodal cream mud and negative pole cream mud again with sulphuric acid soln precipitation, crystallization with quality;
5) with anodal cream mud and negative pole cream mud coated plate respectively, with two green plates behind the described coated plate through dehydration, solidify, after dry, the Balance Treatment, be 1.12 H at mass ratio
2SO
4Switch in the solution, and then make the positive plate and the negative plate of new lead storage battery.
Embodiment 2: another waste lead accumulator treatment process, and the step 1 of its step a, b and embodiment 1,2 identical, and begin to adjust from step c, the scheme of its adjustment is as follows:
C, be that 17% hydrogen peroxide carries out the ionization reduction and handles with quality than concentration earlier with described active mud, change over to again in first autoclave and under 7 normal atmosphere pressure, dissolve with ammonia soln, changing over to then in second autoclave at pressure is 5 normal atmosphere, temperature is to transform with volatile salt under 100 ℃ the environment, and in normal temperature and pressure precipitation press filtration down;
D, be that 35% sodium hydroxide dissolves purification with quality under 45 ℃ of temperature environments,, and then obtain anodal cream mud and negative pole cream mud again with sulphuric acid soln precipitation, crystallization than concentration with step c gained throw out;
E, with anodal cream mud and negative pole cream mud coated plate respectively, with two green plates behind the described coated plate through dehydration, solidify, after dry, the Balance Treatment, be 2 H at mass ratio
2SO
4Switch in the solution, and then make the positive plate and the negative plate of new lead storage battery.
Embodiment 3: another waste lead accumulator treatment process, its step 1., 2. with the step 1 of embodiment 1,2 identical, and 3. begin to adjust from step, the scheme of its adjustment is as follows:
3. be that 13% copperas solution carries out the ionization reduction and handles with quality than concentration earlier with described active mud, change over to again in first autoclave and under 7 normal atmosphere pressure, dissolve with ammonia soln, changing over to then in second autoclave at pressure is 5 normal atmosphere, temperature is to transform with volatile salt under 80 ℃ the environment, and in normal temperature and pressure precipitation press filtration down;
4. with step 3. the gained throw out be that 32% potassium hydroxide dissolves purification with quality under 50 ℃ of temperature environments than concentration, again with sulphuric acid soln precipitation, crystallization, and then obtain anodal cream mud and negative pole cream mud;
5. with anodal cream mud and negative pole cream mud coated plate respectively, with two green plates behind the described coated plate through dehydration, solidify, after dry, the Balance Treatment, be 1 H at mass ratio
2SO
4Switch in the solution, and then make the positive plate and the negative plate of new lead storage battery.
Embodiment 4: another waste lead accumulator treatment process, and the step 1 of its step I, II and embodiment 1,2 identical, and begin to adjust from the step III, the scheme of its adjustment is as follows:
III, be that 15% formaldehyde solution is carried out the ionization reduction and handled with quality than concentration earlier with described active mud, change over to again in first autoclave and under 6 normal atmosphere pressure, dissolve with ammonia soln, changing over to then in second autoclave at pressure is 4 normal atmosphere, temperature is to transform with volatile salt under 90 ℃ the environment, and in normal temperature and pressure precipitation press filtration down;
IV, be that 30% acetate dissolves purification with quality under 48 ℃ of temperature environments,, and then obtain anodal cream mud and negative pole cream mud again with sulphuric acid soln precipitation, crystallization than concentration with step III gained throw out;
V, with anodal cream mud and negative pole cream mud coated plate respectively, with two green plates behind the described coated plate through dehydration, solidify, after dry, the Balance Treatment, be 1.5 H at mass ratio
2SO
4Switch in the solution, and then make the positive plate and the negative plate of new lead storage battery.
Among the present invention, in the reduction of carrying out cream mud, in conversion and purification and the galvanization to coated plate, adopt different chemical reagent and different concentration, prepared cream mud of envrionment temperature and pressure intensity parameter and last gained are just, negative plate all has nothing in common with each other, the thickness of gained pole plate for example, hardness, conductivity, Corrosion Protection, lead tolerance etc. are all variant, and above embodiment has just proposed preferable scheme, those skilled in the art will be appreciated that, when making, can make the product of final gained can satisfy the production demand according to the parameters in the different demand adjusting technical process.
Claims (5)
1. waste lead storage battery acid type wet method process is characterized in that, comprises the steps:
Waste lead accumulator is carried out break process through artificial or crusher, sulfuric acid, plastic casing and dividing plate in the waste lead accumulator are separated, and plastic casing after separating and dividing plate are carried out the reclaiming clean processing according to prior art respectively;
To change the mechanical separation machine through the waste lead accumulator surplus materials after the described break process of step 1) over to and adopt the vibration flotation process to handle, obtain grid and active mud after the separation;
With described active mud is that 11% ~ 17% reductive agent carries out the ionization reduction and handles with quality than concentration earlier, changes in first autoclave with the ammonia soln dissolving again, change over to then in second autoclave to transform with volatile salt, and in normal temperature and pressure precipitation press filtration down;
Is that 25% ~ 35% solubility acid or alkali under 45 ~ 50 ℃ temperature environments dissolve purification with quality than concentration with step 3) gained throw out, again with sulphuric acid soln precipitation, crystallization, and then obtains anodal cream mud and negative pole cream mud;
With anodal cream mud and negative pole cream mud coated plate respectively, with two green plates behind the described coated plate through dehydration, solidify, after dry, the Balance Treatment, be 1 ~ 2 H at mass ratio
2SO
4Switch in the solution, and then make the positive plate and the negative plate of new lead storage battery.
2. waste lead storage battery acid type wet method process according to claim 1 is characterized in that, the reductive agent in the described step 3) is formaldehyde, hydrogen peroxide or ferrous sulfate.
3. waste lead storage battery acid type wet method process according to claim 1 is characterized in that, pressure is 7 normal atmosphere in described first autoclave.
4. waste lead storage battery acid type wet method process according to claim 1 is characterized in that, pressure is 5 normal atmosphere in described second autoclave, and temperature is 80 ~ 100 ℃.
5. waste lead storage battery acid type wet method process according to claim 1 is characterized in that, solubility acid in the described step 4) or alkali are formic acid, acetate, sodium hydroxide or potassium hydroxide.
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| CN2010102554155A CN101899575B (en) | 2010-08-17 | 2010-08-17 | Waste lead storage battery acid type wet method process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102554155A CN101899575B (en) | 2010-08-17 | 2010-08-17 | Waste lead storage battery acid type wet method process |
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| CN101899575B CN101899575B (en) | 2012-01-04 |
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|---|---|---|---|---|
| CN103779616A (en) * | 2012-10-25 | 2014-05-07 | 梁达保 | Method for inhibiting the generation of hydrofluoric acid by adding glass fibers into lead electrolyte |
| CN104466291A (en) * | 2014-12-03 | 2015-03-25 | 遵义市金狮金属合金有限公司 | Process for treating waste lead acid storage battery |
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2010
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101899575B (en) | 2012-01-04 |
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