CN107287627A - A kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud - Google Patents
A kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud Download PDFInfo
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- CN107287627A CN107287627A CN201710476013.XA CN201710476013A CN107287627A CN 107287627 A CN107287627 A CN 107287627A CN 201710476013 A CN201710476013 A CN 201710476013A CN 107287627 A CN107287627 A CN 107287627A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 27
- 230000008021 deposition Effects 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 53
- 230000002378 acidificating effect Effects 0.000 claims abstract description 22
- 230000010349 pulsation Effects 0.000 claims abstract description 22
- 239000003792 electrolyte Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000009835 boiling Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 9
- 229920000159 gelatin Polymers 0.000 claims description 8
- 235000019322 gelatine Nutrition 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 229910000464 lead oxide Inorganic materials 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 7
- 239000011668 ascorbic acid Substances 0.000 claims description 6
- 229960005070 ascorbic acid Drugs 0.000 claims description 6
- 235000010323 ascorbic acid Nutrition 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 108010010803 Gelatin Proteins 0.000 claims description 5
- 239000008273 gelatin Substances 0.000 claims description 5
- 235000011852 gelatine desserts Nutrition 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 229960003511 macrogol Drugs 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 239000001828 Gelatine Substances 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 27
- 238000004140 cleaning Methods 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 25
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 15
- 238000000151 deposition Methods 0.000 description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 9
- 229910001437 manganese ion Inorganic materials 0.000 description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 241000370738 Chlorion Species 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 208000016261 weight loss Diseases 0.000 description 4
- 230000004580 weight loss Effects 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000009854 hydrometallurgy Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 235000009529 zinc sulphate Nutrition 0.000 description 2
- 239000011686 zinc sulphate Substances 0.000 description 2
- GDSOZVZXVXTJMI-SNAWJCMRSA-N (e)-1-methylbut-1-ene-1,2,4-tricarboxylic acid Chemical compound OC(=O)C(/C)=C(C(O)=O)\CCC(O)=O GDSOZVZXVXTJMI-SNAWJCMRSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009858 zinc metallurgy Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
A kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud, the surface ceramic deposition palisading type positive plate that surface, which is covered, manganese dioxide anode mud is placed in acidic electrolysis bath as negative electrode, is electrolysed using constant-potential electrolysis method；Bottom of electrolytic tank makes electrolyte swing back and forth using pulsation stirring compressed air, electrode surface is uniformly rinsed by fluid.The present invention can effectively remove palisading type positive plate Anodic mud, the blocking in gap between rod and rod is eliminated, interface resistance is reduced, and recover the characteristic of positive plate conductivity ceramics film, the mobility of solution is kept so as to play the advantage of palisading type anode, the problem of earth of positive pole cleaning is difficult is effectively solved.
Description
Technical field
The present invention relates to the minimizing technology technical field of palisading type positive plate Anodic mud.
Background technology
The palisading type positive plate of non-ferrous metal electrodeposition disclosed in Chinese patent ZL201210381953.8, improves electrolyte
Mobility, reduce the concentration polarization in cathodic region, improve the deposition of cathodic metal, thus improve cathode current effect
Rate.Palisading type positive plate will not occur bending and deformation, so as to avoid the phenomenon of cathode-anode plate short circuit, itself and traditional lead-containing alloy
Positive plate is compared, and electric conductivity is significantly improved, and tank voltage can reduce by 10%, material cost reduction by 20%, current efficiency raising 2-
5%.Therefore more and more extensive concern is received.
In Zinc Hydrometallurgy Process, generally existing chlorion in zinc sulphate electrolyte, and chlorion can replace PbO2Lattice
In oxonium ion, cause intercrystalline destruction, the corrosion of accelerating anode, this not only reduces the service life of anode, and makes
Lead content raises and then reduces the quality of zinc in cathode zinc.Chloride ion content is generally 100~300mg/L in zinc electrolyte,
However, with the continuous exploitation of zinc metallurgy ore deposit, high-grade zinc concentrate is fewer and fewer, complicated difficult is smelted zinc ore and is continuously increased, and this is just
Purification to zinc sulphate electrolyte brings many difficulties, and then increases the concentration of chlorion.At present, in many zinc hydrometallurgies
In enterprise, the concentration of chlorion is even up to 800~1000mg/L.And working as in electrolyte has MnO2In the presence of, Cl can be controlled-
Harm.When there is Mn in electrolyte2+In the presence of occur following reaction in anode：Mn2++2H2O-2e=MnO2+4H+, generation
MnO2Stick on anode, can be with the Cl in solution-Occurs following reaction：MnO2+4H++2Cl-=Mn2++Cl2+2H2O, so that
Play a part of protecting anode.In theory, Mn2+Content general control in the electrolytic solution in 3~5g/L preferably.Due to newly-built
The variety of problems of fluidized bed furnace, the residual sulphur of roasted ore of output is higher, roasting the residual sulphur of dirt between 10%~15%, up to 20% with
On, in hot acid leaching process, sulfide has stronger reproducibility, easily by the Fe in solution3+It is reduced into Fe2+, in order to except
The substantial amounts of manganese powder of oxidant one must not be added without in the iron ion gone in solution, operation process, by Fe2+It is oxidized to Fe3+, so
Redox reaction is carried out, substantial amounts of manganese powder is not only consumed, and causes manganese ion content in solution higher, in 7~12g/L models
In enclosing, even up to more than 15g/L.For palisading type anode, a number of earth of positive pole attachment advantageously reduces anode
Rate of corrosion, but the earth of positive pole is attached on anode substantially, seldom falls into bottom land, extension that can over time and between rod and rod in
Constantly accumulate, gradually stopper rod space, this is unfavorable to the characteristic for playing palisading type anode.In addition, thick MnO2The earth of positive pole is led
It is electrically poor, interface resistance will be greatly increased, tank voltage is improved, increases power consumption.Therefore need periodically to remove palisading type anode
Surface anode mud, to ensure the excellent properties for giving full play to palisading type anode.Although in traditional Zinc electrolysis and manganese electrolytic deposition process
In, it is also desirable to periodically the earth of positive pole of flat board anode surface is purged, but the conventional method of factory is rooted out with scoop.This method
The earth of positive pole of anode surface can simply be removed, but its surface ceramic PbO2Film is easily destroyed, and is caused into the former of groove
It is leaded higher that it separates out zinc.
Chinese patent ZL 201110238768.9 is onboard porous to clear up by spraying reducing solution using chemical reduction method
Anode, most of earth of positive pole can be removed using the technique, eliminate the blocking of hole, reduce interface resistance, and recover positive plate
Specific surface area, keeps low current density to play the advantage of porous anode.But the time needed for it is cleared up is long, reducing solution can be big
Amount is lost in, and needs substantial amounts of water to clean, careless slightly, may result in matrix excessive erosion.It is, thus, sought for a kind of more reasonable
The palisading type aluminium base alloy lead anode plate suitable for surface ceramic deposition earth of positive pole sweep-out method.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of efficient, economical, environmental protection suitable for surface
The method of the removal of the palisading type positive plate Anodic mud of ceramic.
The purpose of the present invention is achieved through the following technical solutions：
A kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud, surface, which is covered, manganese dioxide anode
The surface ceramic deposition palisading type positive plate of mud is placed in acidic electrolysis bath as negative electrode, is electrolysed using constant-potential electrolysis method；Electrolysis
Trench bottom makes electrolyte swing back and forth using pulsation stirring compressed air, electrode surface is uniformly rinsed by fluid.
Acidic electrolysis formula of liquid and technological parameter of the present invention are:H2SO4100~300g/L, H3PO450-150g/L,
The H of mass concentration 37%2O220-80mL/L, C6H8O620-80g/L, control voltage 3-6V, 30-60 DEG C of temperature, electrolysis time 2-
10min, PbS particle 5-20g/L, surfactant 0.005-0.1g/L.The technological parameter of compressed air pulsation stirring is：
Pressure limit is 1.5-3atm, and the pulsation period is 9-15s, 20-100w/ tons of solution of stirring power, and the material of pulse piping is polytetrafluoro
Ethene.Vulcanized lead grain diameter in the electrolyte is 50-200 μm, and its preparation method is as follows：By 20-50g yellow lead oxides
120-160g/LNaOH is dissolved in saturation；Separately take 17-30g thiocarbamides to be dissolved in 1L hot water, filter；Isometric above two is molten
Liquid is mixed, and boiling is heated under agitation, and keeps boiling 10-30min to make PbS precipitations complete, is washed with deionized to not
Aobvious alkalescence, suction filtration is put in baking oven and dried.In the acidic electrolysis formula of liquid, preferably H3PO480-120g/L, mass concentration 37%
H2O240-60mL/L, vitamin C6H8O640-60g/L.Described surfactant is gelatin, gelatine, Macrogol 6000
And the mixture of the one or two kinds of in kerosene.The present invention is by the palisading type positive plate taking-up heat of compression after constant-potential electrolysis
Steam blast, removes the loose earth of positive pole, jetting pressure is 2-4atm.
The present invention has the following advantages that compared with prior art：
1st, palisading type anode is done the wash using electrochemical process, surface ceramic PbO will not be destroyed2Composite film.
2nd, it is electrolysed using the method for electrochemistry, pressure strips manganese dioxide, while reducing solution hydrogen peroxide and anti-bad
Hematic acid accelerates the reduction of manganese dioxide, the speed of generation manganese salt solution is improved 2-5 times.
3rd, phosphoric acid is added in solution, its Mn with reduction3+Ion carries out complex reaction, generates pyrophosphate complex compound, plus
The speed of fast manganese dioxide reduction.
4th, in the electrolytic solution add vulcanized lead particle, and be allowed to it is dispersed in the electrolytic solution, make current density more conventional
Current density used in technique improves 2-3 times, and particle and the manganese dioxide anode mud of palisading type anode plate surface fully connect
Touch, wash away the earth of positive pole, and fully chemically reacted with manganese dioxide, promote the reduction rate of manganese dioxide to improve 2-4 times, pole
It is big to shorten clearance time.
5th, using pulse stirring the mass transport process of electrochemistry can be made to increase to 5-10 times, accelerates the de- of manganese dioxide anode mud
Fall, drastically increase cleaning efficiency.
6th, the solution after being electrolysed can return to leaching or cleaning procedure, realize the recovery recycled with manganese ion of solution,
Impurity, and implementation process zero-emission will not be brought into wet method metallurgical system.
The inventive method is efficient, economical, environmentally friendly, reduce discharge of wastewater.Palisading type positive plate Anodic mud can be effectively removed,
The blocking in gap between rod and rod is eliminated, interface resistance is reduced, and recovers the characteristic of positive plate conductivity ceramics film, solution is kept
Mobility solves the problem of earth of positive pole cleaning is difficult so as to play the advantage of palisading type anode, effectively.The inventive method is environment-friendly,
Cost is low, suitable for industrial applications.
Brief description of the drawings
Fig. 1 is the surface ceramic deposition palisading type positive plate Local map before the cleaning earth of positive pole；
Fig. 2 is the surface ceramic deposition palisading type positive plate Local map after the cleaning earth of positive pole.
Embodiment
The inventive method is described in further detail below by embodiment, but the scope of the present invention is not limited to institute
State content.
Embodiment 1
The surface ceramic deposition palisading type positive plate that surface shown in Fig. 1, which is covered, manganese dioxide anode mud is placed in as negative electrode
In acidic electrolysis bath, it is electrolysed using constant-potential electrolysis method；Bottom of electrolytic tank makes electrolyte using pulsation paddling process compressed air
Swing back and forth, electrode surface is uniformly rinsed by fluid.
The acidic electrolysis formula of liquid and technological parameter are:Sulfuric acid (H2SO4) 200g/L, phosphoric acid (H3PO4) 100g/L, matter
Measure the hydrogen peroxide (H of concentration 37%2O2) 60mL/L, ascorbic acid (C6H8O6) 60g/L, control voltage 5V, 40 DEG C of temperature, during electrolysis
Between 8min, vulcanized lead particle (PbS) 10g/L, gelatine and each 0.005g/L of Macrogol 6000.
The technological parameter of compressed air pulsation stirring is：Pressure 3atm, the pulsation period is 9s, and 80w/ tons of stirring power is molten
Liquid, the material of pulse piping is polytetrafluoroethylene (PTFE).Vulcanized lead grain diameter in the electrolyte is 100 μm, and its preparation method is such as
Under：30g yellow lead oxides are dissolved in 150g/LNaOH to saturation；Separately take 25g thiocarbamides to be dissolved in 1L hot water, filter；Will be isometric
The mixing of above two solution, boiling is heated under agitation, and keep boiling 10-30min to make PbS precipitations complete, spend from
Sub- water washing is put in baking oven and dried to alkalescence, suction filtration is not shown.
By the palisading type positive plate taking-up heat of compression steam blast after constant-potential electrolysis as shown in Figure 2, remove loose
The earth of positive pole, jetting pressure is 4atm.
The corresponding anode of acidic electrolysis bath of the present invention is pending palisading type positive plate, and size and the minus plate of processing are big
It is small consistent.Solution after electrolysis can be returned and leached or cleaning procedure, realize the recovery recycled with manganese ion of solution, no
Impurity, and implementation process zero-emission can be brought into wet method metallurgical system.
Embodiment 2
The surface ceramic deposition palisading type positive plate for being attached with the earth of positive pole is taken out from electrolytic cell, weigh 38kg.It is subsequently placed in
In acidic electrolysis bath, it is electrolysed using constant-potential electrolysis method；Bottom of electrolytic tank makes electrolyte using pulsation paddling process compressed air
Swing back and forth, electrode surface is uniformly rinsed by fluid.
Acidic electrolysis formula of liquid and technological parameter are:Sulfuric acid (H2SO4) 100g/L, phosphoric acid (H3PO4) 150g/L, quality is dense
Hydrogen peroxide (the H of degree 37%2O2) 20mL/L, ascorbic acid (C6H8O6) 40g/L, control voltage 6V, 30 DEG C of temperature, electrolysis time
10min, vulcanized lead particle (PbS) 20g/L, gelatin 0.1g/L.
The technological parameter of compressed air pulsation stirring is：Pressure 2atm, the pulsation period is 10s, 100w/ tons of stirring power
Solution, the material of pulse piping is polytetrafluoroethylene (PTFE).Vulcanized lead grain diameter in the electrolyte is 50 μm, and its preparation method is such as
Under：50g yellow lead oxides are dissolved in 160g/LNaOH to saturation；Separately take 17g thiocarbamides to be dissolved in 1L hot water, filter；Will be isometric
The mixing of above two solution, boiling is heated under agitation, and keep boiling 10-30min to make PbS precipitations complete, spend from
Sub- water washing is put in baking oven and dried to alkalescence, suction filtration is not shown.
By the palisading type positive plate taking-up heat of compression steam blast after constant-potential electrolysis, the loose earth of positive pole, injection are removed
Pressure is 2atm, is blown 2min, weighs, and the weight-loss ratio for obtaining positive plate is 0.45wt%.
The corresponding anode of acidic electrolysis bath of the present invention is pending palisading type positive plate, and size and the minus plate of processing are big
It is small consistent.Solution after electrolysis, which is returned, to be leached or cleaning procedure, realizes the recovery recycled with manganese ion of solution.
Embodiment 3
The surface ceramic deposition palisading type positive plate for being attached with the earth of positive pole is taken out from electrolytic cell, weigh 48.5kg.Then put
In acidic electrolysis bath, it is electrolysed using constant-potential electrolysis method；Bottom of electrolytic tank makes electrolysis using pulsation paddling process compressed air
Liquid swings back and forth, and electrode surface is uniformly rinsed by fluid.
Acidic electrolysis formula of liquid and technological parameter are:Sulfuric acid (H2SO4) 300g/L, phosphoric acid (H3PO4) 50g/L, mass concentration
37% hydrogen peroxide (H2O2) 80mL/L, ascorbic acid (C6H8O6) 80g/L, control voltage 3V, temperature 60 C, electrolysis time
2min, vulcanized lead particle (PbS) 5g/L, kerosene 0.001g/L.
The technological parameter of compressed air pulsation stirring is：Pressure 1.5atm, the pulsation period is 15s, stirring power 20w/
Ton solution, the material of pulse piping is polytetrafluoroethylene (PTFE).Vulcanized lead grain diameter in the electrolyte is 200 μm, its preparation side
Method is as follows：20g yellow lead oxides are dissolved in 120g/LNaOH to saturation；Separately take 30g thiocarbamides to be dissolved in 1L hot water, filter；Will etc.
The above two solution mixing of volume, is heated to boiling under agitation, and keeps boiling 10-30min to make PbS precipitations complete, uses
Deionized water is washed to alkalescence is not shown, and suction filtration is put in baking oven and dried.
By the palisading type positive plate taking-up heat of compression steam blast after constant-potential electrolysis, the loose earth of positive pole, injection are removed
Pressure is 3atm, is blown 3min, weighs, and the weight-loss ratio for obtaining positive plate is 1.45wt%.
The corresponding anode of acidic electrolysis bath is pending palisading type positive plate, size and the minus plate size one of processing
Cause.Solution after electrolysis, which is returned, to be leached or cleaning procedure, realizes the recovery recycled with manganese ion of solution.
Embodiment 4
The surface ceramic deposition palisading type positive plate for being attached with the earth of positive pole is taken out from electrolytic cell, weigh 56kg.It is subsequently placed in
In acidic electrolysis bath, it is electrolysed using constant-potential electrolysis method；Bottom of electrolytic tank makes electrolyte using pulsation paddling process compressed air
Swing back and forth, electrode surface is uniformly rinsed by fluid.
Acidic electrolysis formula of liquid and technological parameter are:Sulfuric acid (H2SO4) 150g/L, phosphoric acid (H3PO4) 80g/L, mass concentration
37% hydrogen peroxide (H2O2) 40mL/L, ascorbic acid (C6H8O6) 60g/L, control voltage 4V, 40 DEG C of temperature, electrolysis time
5min, vulcanized lead particle (PbS) 15g/L, gelatin 0.05g/L, Macrogol 6000 0.03g/L.
The technological parameter of compressed air pulsation stirring is：Pressure 2atm, the pulsation period is 12s, 50w/ tons of stirring power
Solution, the material of pulse piping is polytetrafluoroethylene (PTFE).Vulcanized lead grain diameter in the electrolyte is 150 μm, its preparation method
It is as follows：40g yellow lead oxides are dissolved in 140g/LNaOH to saturation；Separately take 25g thiocarbamides to be dissolved in 1L hot water, filter；The bodies such as general
Long-pending above two solution mixing, is heated to boiling under agitation, and keeps boiling 10-30min to make PbS precipitations complete, spends
Ion water washing is put in baking oven and dried to alkalescence, suction filtration is not shown.
By the palisading type positive plate taking-up heat of compression steam blast after constant-potential electrolysis, the loose earth of positive pole, injection are removed
Pressure is 3atm, is blown 3min, weighs, and the weight-loss ratio for obtaining positive plate is 2.45wt%.
The corresponding anode of acidic electrolysis bath is pending palisading type positive plate, size and the minus plate size one of processing
Cause.Solution after electrolysis, which is returned, to be leached or cleaning procedure, realizes the recovery recycled with manganese ion of solution.
Embodiment 5
The surface ceramic deposition palisading type positive plate for being attached with the earth of positive pole is taken out from electrolytic cell, weigh 160kg.It is subsequently placed in
In acidic electrolysis bath, it is electrolysed using constant-potential electrolysis method；Bottom of electrolytic tank makes electrolyte using pulsation paddling process compressed air
Swing back and forth, electrode surface is uniformly rinsed by fluid.
Acidic electrolysis formula of liquid and technological parameter are:Sulfuric acid (H2SO4) 250g/L, phosphoric acid (H3PO4) 120g/L, quality is dense
Hydrogen peroxide (the H of degree 37%2O2) 50mL/L, ascorbic acid (C6H8O6) 50g/L, control voltage 5V, 40 DEG C of temperature, electrolysis time
8min, vulcanized lead particle (PbS) 12g/L, gelatin 0.05g/L.
The technological parameter of compressed air pulsation stirring is：Pressure 2atm, the pulsation period is 12s, 60w/ tons of stirring power
Solution, the material of pulse piping is polytetrafluoroethylene (PTFE).Vulcanized lead grain diameter in the electrolyte is 150 μm, its preparation method
It is as follows：30g yellow lead oxides are dissolved in 150g/LNaOH to saturation；Separately take 20g thiocarbamides to be dissolved in 1L hot water, filter；The bodies such as general
Long-pending above two solution mixing, is heated to boiling under agitation, and keeps boiling 10-30min to make PbS precipitations complete, spends
Ion water washing is put in baking oven and dried to alkalescence, suction filtration is not shown.
By the palisading type positive plate taking-up heat of compression steam blast after constant-potential electrolysis, the loose earth of positive pole, injection are removed
Pressure is 4atm, is blown 2min, weighs, and the weight-loss ratio for obtaining positive plate is 2.68wt%.
The corresponding anode of acidic electrolysis bath is pending palisading type positive plate, size and the minus plate size one of processing
Cause.Solution after electrolysis, which is returned, to be leached or cleaning procedure, realizes the recovery recycled with manganese ion of solution.
Claims (7)
1. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud, it is characterised in that covering surface has two
The surface ceramic deposition palisading type positive plate of oxidation Manganese anode slime is placed in acidic electrolysis bath as negative electrode, is carried out using constant-potential electrolysis method
Electrolysis；Bottom of electrolytic tank makes electrolyte swing back and forth using pulsation stirring compressed air, electrode surface is uniformly rushed by fluid
Wash.
2. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud according to claim 1, its feature
It is, the acidic electrolysis formula of liquid and technological parameter are:H2SO4100~300g/L, H3PO450-150g/L, mass concentration
37% H2O220-80mL/L, C6H8O620-80g/L, control voltage 3-6V, 30-60 DEG C of temperature, electrolysis time 2-10min, PbS
Particle 5-20g/L, surfactant 0.005-0.1g/L.
3. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud according to claim 1, its feature
It is, the technological parameter of the compressed air pulsation stirring is：Pressure limit is 1.5-3atm, and the pulsation period is 9-15s, stirring
20-100w/ tons of solution of energy, the material of pulse piping is polytetrafluoroethylene (PTFE).
4. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud according to claim 1, its feature
It is, by the palisading type positive plate taking-up heat of compression steam blast after constant-potential electrolysis, removes the loose earth of positive pole, jetting pressure
For 2-4atm.
5. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud according to claim 2, its feature
It is, the vulcanized lead grain diameter in the electrolyte is 50-200 μm, and its preparation method is as follows：By 20-50g yellow lead oxides
120-160g/LNaOH is dissolved in saturation；Separately take 17-30g thiocarbamides to be dissolved in 1L hot water, filter；Isometric above two is molten
Liquid is mixed, and boiling is heated under agitation, and keeps boiling 10-30min to make PbS precipitations complete, is washed with deionized to not
Aobvious alkalescence, suction filtration is put in baking oven and dried.
6. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud according to claim 2, its feature
It is, in the acidic electrolysis formula of liquid, H3PO480-120g/L, mass concentration 37% H2O240-60mL/L, ascorbic acid
C6H8O640-60g/L。
7. a kind of minimizing technology of surface ceramic deposition palisading type positive plate Anodic mud according to claim 2, its feature
It is, described surfactant is the mixing of the one or two kinds of in gelatin, gelatine, Macrogol 6000 and kerosene
Body.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109385645A (en) * | 2018-12-06 | 2019-02-26 | 普瑞斯伊诺康有限公司 | A kind of processing method improving positive plate for electrolyzing manganese dioxide electric conductivity |
| CN113355696A (en) * | 2021-06-11 | 2021-09-07 | 邵阳学院 | Method for cleaning anode mud on zinc electrodeposition anode plate |
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| CN113355696A (en) * | 2021-06-11 | 2021-09-07 | 邵阳学院 | Method for cleaning anode mud on zinc electrodeposition anode plate |
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