CN107858703A - A kind of electrolysis additive formula and application method for improving solution of zinc sulfate electrolytic zinc quality and production environment - Google Patents
A kind of electrolysis additive formula and application method for improving solution of zinc sulfate electrolytic zinc quality and production environment Download PDFInfo
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- CN107858703A CN107858703A CN201711058277.XA CN201711058277A CN107858703A CN 107858703 A CN107858703 A CN 107858703A CN 201711058277 A CN201711058277 A CN 201711058277A CN 107858703 A CN107858703 A CN 107858703A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
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Abstract
The invention belongs to electrolytic zinc optimisation technique field, there is provided a kind of electrolysis additive formula and application method for improving solution of zinc sulfate electrolytic zinc quality and production environment, including：Using solution of zinc sulfate as electrolyte, positive plate is done with pb-ag alloy plate, extruded aluminum plate makees minus plate；When the consistency of the zinc on extruded aluminum plate declines, gelatine solution is added into electrolyte；By polyacrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate is configured to polyacrylamide solution, polyglycol solution and sodium metnylene bis-naphthalene sulfonate solution, is separately added into electrolyte.It can solve the problem that medicament is second-rate except the solution of zinc sulfate electrolytic zinc of cobalt institute output using the formula, it is leaded with iron is higher and the ingot casting rate of recovery is low technical barrier；Improve site environment simultaneously, reduce environmental pollution；Can be eliminated using the application method influences the quality of solution zinc and the unfavorable factor of power consumption in operation is electrolysed, and significantly improves electrolytic zinc quality and operating environment.
Description
Technical field
The invention belongs to electrolytic zinc optimisation technique field, specifically, is related to a kind of improvement solution of zinc sulfate electrolytic zinc matter
The electrolysis additive formula and application method of amount and production environment.
Background technology
With the development of industrial technology, the requirement more and more higher of quality and operating environment to electrolytic zinc.Zinc hydrometallurgy system
In system, electrowinning process is main energy unit, and the quality of electrolytic zinc directly affects the production cost of electrolytic zinc plant；And due to
Zinc electrolysis operation property is electrolysed, oxygen escapes from electrolyte, acid mist can be produced, so as to cause environmental pollution.
In the prior art, the general addition additive using into electrolyte improves to above mentioned problem, elongated use
Traditional zinc powder is except the additive of cobalt purification technique.But in electrolytic process, it is only capable of playing fine and close zinc metal sheet using the above method
Effect, and be unable to depressant agent except the subsequent affect that residual medicament is brought during cobalt.
The content of the invention
For deficiency above-mentioned in the prior art, the first object of the present invention is to provide a kind of improvement solution of zinc sulfate electricity
The electrolysis additive formula of zinc quality and production environment is solved, can solve the problem that medicament is molten except the zinc sulfate of cobalt institute output using the formula
Liquid electrolytic zinc is second-rate, leaded with iron is higher and the ingot casting rate of recovery is low technical barrier；Improve site environment simultaneously, reduce
Environmental pollution.
For deficiency above-mentioned in the prior art, the second object of the present invention is to provide a kind of improvement solution of zinc sulfate electricity
The application method of the electrolysis additive formula of zinc quality and production environment is solved, can be eliminated in electrolysis operation using the application method
The unfavorable factor of the middle quality and power consumption for influenceing solution zinc, significantly improves electrolytic zinc quality and operating environment.
In order to achieve the above object, the solution that uses of the present invention is：
A kind of electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment, its component include：Bone
Sol solution, polyacrylamide, polyethylene glycol and sodium metnylene bis-naphthalene sulfonate, are counted in parts by weight, and gelatine solution is in electrolyte
In addition be 2-3 parts/cycle, the addition of polyacrylamide in the electrolytic solution is 3-4 parts/cycle；Polyethylene glycol is in electricity
The concentration solved in liquid is 0.5-1mg/L, and the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution is 0.2-0.4mg/L.
A kind of user for the electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment as described above
Method, including：Using solution of zinc sulfate as electrolyte, positive plate is done with pb-ag alloy plate, extruded aluminum plate makees minus plate；Rolling
When the consistency of zinc on aluminium sheet declines, gelatine solution is added into electrolyte；By polyacrylamide, polyethylene glycol, methylene
Sodium dinaphthalenesulfonate is configured to polyacrylamide solution, polyglycol solution and sodium metnylene bis-naphthalene sulfonate solution, is separately added into
In electrolyte.
A kind of electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment provided by the invention and
The beneficial effect of application method is：
(1) electrolysis additive of a kind of improvement solution of zinc sulfate electrolytic zinc quality and production environment provided by the invention is matched somebody with somebody
Side, by gelatine solution, polyacrylamide, polyethylene glycol and sodium metnylene bis-naphthalene sulfonate are reasonably combined and apply solution of zinc sulfate
In electrolysis；The regime of agent makes on the fine and close exposure basis of zine plate in traditional gelatine, comprehensively improves electrolytic environments；Wherein,
Polyacrylamide impurity in aggregate and precipitate electrolyte, the lead for significantly reducing electrolytic zinc plate can contain rapidly in the electrolytic solution
Amount；Polyethylene glycol can make objectionable impurities ion and except the oils remained during cobalt preferably spreads, preferably avoid due to
Harmful ion and except the oils concentration remained during cobalt is locally too high, the local situation for burning plate is caused to occur, simultaneously because its
Good diffusion, the concentration polarization problem of zinc ion can be significantly improved, electrolysis operating environment is improved；Methylene
Base sodium dinaphthalenesulfonate has certain peptizaiton, while it is a kind of surfactant, i.e., will not cause electric pole short circuit, avoid
Acid mist directly escapes, while can greatly improve site work environment.
The addition of each component in the electrolytic solution is defined, to further function as the work of coordinated synergy between each component
With, solve medicament except the solution of zinc sulfate electrolytic zinc of cobalt institute output is second-rate, it is leaded higher with iron and the ingot casting rate of recovery is low
Technical barrier；Improve site environment simultaneously, reduce environmental pollution.
(2) a kind of electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment provided by the invention
Application method not only optimize electrolysis process control while, additionally use brand-new additive land use reform, eliminate
Being electrolysed in operation influences the quality of electrolytic zinc and the unfavorable factor of power consumption, significantly improves electrolytic zinc quality and operation ring
Border.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is the conventional production that can be obtained by commercially available purchase
Product.
Below to a kind of electrolysis for improving solution of zinc sulfate electrolytic zinc quality and production environment provided in an embodiment of the present invention
Additive formulations and application method are specifically described.
A kind of electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment, its component include：Bone
Sol solution, polyacrylamide, polyethylene glycol and sodium metnylene bis-naphthalene sulfonate.
Wherein, gelatine has increase cathodic polarization, improves negative electrode precipitation quality, improve the super of hydrogen during electrolytic zinc
Voltage, suppress the precipitation of hydrogen, reduce some metal impurities (such as：Bore, antimony) harm and reduce cathode zinc anti-dissolving etc. it is excellent
Point.
But gelatine is poor to the scattered and improvement concentration polarization effect of organic matter, therefore remained in solution of zinc sulfate
During oily organic matter, electrolytic zinc plate face can produce flakey zinc granule, so as to cause zinc to yield poorly and ingot casting direct yield reduce.
Polyacrylamide, in the electrolytic solution can rapid aggregate and precipitate, including calcium sulfate, sulfuric acid lead anode slurry etc.,
Avoid lead to contact with cathode surface, significantly reduce electrolytic zinc plate lead content.Polyethylene glycol disperses as a kind of good
Agent uses, and it can make objectionable impurities ion and except the oils remained during cobalt preferably spreads, preferably avoid due to having
Do harm to ion and except the oils concentration remained during cobalt is locally too high, cause local burning plate；Simultaneously because its good diffusion is made
With greatly improving the concentration polarization problem of zinc ion, electrolysis operating environment is improved.Sodium metnylene bis-naphthalene sulfonate is made
For the supplement additive of polyethylene glycol, there is certain peptizaiton, it is similar to polyethylene glycol effect, while it is a kind of surface
Activating agent, under the conditions of appropriate, there is certain barbotage, but foamability is poor, and froth bed is thin, therefore in electrolysis operation
In, cell surface can be made to form 5-10mm thickness froth beds, i.e., will not cause electric pole short circuit, it also avoid acid mist and directly escape
Go out, while with good peptizaiton, site work environment can be significantly improved.
Count in parts by weight, the addition of gelatine solution in the electrolytic solution is 2-3 parts/cycle, and polyacrylamide is being electrolysed
Addition in liquid is 3-4 parts/cycle；The concentration of polyethylene glycol in the electrolytic solution is 0.5-1mg/L, sodium metnylene bis-naphthalene sulfonate
Concentration in the electrolytic solution is 0.2-0.4mg/L.
A kind of user for the electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment as described above
Method, including：Using solution of zinc sulfate as electrolyte, in the present embodiment, electrolyte includes new liquid and waste liquid；Wherein, new liquid
Acid concentration be 165-175g/L, the zinc concentration of new liquid is 52-54g/L；The acid concentration of waste liquid is 168-178g/L, the zinc of waste liquid
Concentration is 50-52g/L；In the concentration range, the precipitation effect of zinc is more preferable.
Electrolytic process is as follows：By purified good solution of zinc sulfate (new liquid) continuously from the liquid feeding end of electrolytic cell
It is sent into electrolytic cell, positive plate is done with pb-ag alloy plate (argentiferous 1%), extruded aluminum plate makees minus plate, is suspended in groove.When logical straight
When flowing electric, precipitating metal zinc and there is a small amount of hydrogen to release on negative electrode, oxygen is then released on anode.The new electrolysis injected in groove
Liquid zinc content is gradually decreased, and sulfuric acid content gradually increases, and electrolyte is constantly discharged from the overfall of electrolytic cell, is now useless
Liquid.Part waste liquid is sent to leaching process and makees solvent, most of waste liquid mixes with new liquid be re-fed into electrolytic cell after cooling.When
Electrodeposition proposes minus plate after certain time, precipitation zinc is stripped down be sent to founding workshop section by artificial means.Peel off the moon of zinc
Pole aluminium sheet is reloaded into electrolytic cell and is continuing with.
In whole electrolytic process, current density when controlling electrolysis is 380-450A/m2, control electrolysis when temperature be
36-39 DEG C, to improve electrolytic efficiency.
When the consistency of the zinc on extruded aluminum plate declines, gelatine solution is added into electrolyte；Count in parts by weight, bone
The addition of sol solution in the electrolytic solution is 2-3 parts/cycle, in the present embodiment, is preferably, the 2-3kg/ cycles, in this implementation
In example, in order to reach preferably improvement, preferably, gelatine solution need to be added in electrolyte in after going out groove 8 hours.
By polyacrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate is configured to polyacrylamide solution, and polyethylene glycol is molten
Liquid and sodium metnylene bis-naphthalene sulfonate solution, are separately added into electrolyte.Wherein, count in parts by weight, polyacrylamide is in electricity
The addition solved in liquid is 3-4 parts/cycle；In the present embodiment, preferably 3-4kg/ cycles, due to polyacrylamide viscosity
Height, and easily enrichment in the electrolytic solution, can cause tank voltage to raise, therefore should not add polyacrylamide when tank voltage raises,
In this embodiment, it is preferred that when the voltage in electrolytic cell is higher than 3.32V, stop adding polyacrylamide solution；Poly- second two
The concentration of alcohol in the electrolytic solution is 0.5-1mg/L, in the present embodiment, when the surface of extruded aluminum plate produces flakey, in order to
Make to remain oily organic matter in solution of zinc sulfate and preferably spread, preferably, polyethylene glycol in the electrolytic solution dense
Spend for 1mg/L；The concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution is 0.2-0.4mg/L, in the present embodiment example, it is preferable that
The best results when concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution is 0.5mg/L.
In summary, in the use of above-mentioned additive, each component of additive can play collaboration by reasonably combined
Coordinate the effect of synergy, finally eliminate influence of organic grease to electrolytic zinc, and improve zinc electrolysis operating environment.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
Present embodiments provide a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 165g/L, the zinc concentration of new liquid is 52g/L；The acid concentration of waste liquid is 168g/L, and the zinc concentration of waste liquid is 50g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate makees minus plate, and current density when controlling electrolysis is 380A/m2, temperature when control is electrolysed
Spend for 36 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 2kg/ cycles are added into electrolyte；By poly- third
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene two
Sodium naphthalene sulfonate solution；It is the 3kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Poly- second two is added into electrolyte
Alcoholic solution, it is 0.5mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene sulfonic acid is added into electrolyte
Sodium solution, it is 0.2mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Embodiment 2
Present embodiments provide a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 165g/L, the zinc concentration of new liquid is 52g/L；The acid concentration of waste liquid is 168g/L, and the zinc concentration of waste liquid is 50g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate makees minus plate, and current density when controlling electrolysis is 380A/m2, temperature when control is electrolysed
Spend for 36 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 3kg/ cycles are added into electrolyte；By poly- third
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene two
Sodium naphthalene sulfonate solution；It is the 4kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Poly- second two is added into electrolyte
Alcoholic solution, it is 1mg/L to control the concentration of polyglycol solution in the electrolytic solution；Sodium metnylene bis-naphthalene sulfonate is added into electrolyte
Solution, it is 0.4mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Embodiment 3
Present embodiments provide a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 165g/L, the zinc concentration of new liquid is 52g/L；The acid concentration of waste liquid is 168g/L, and the zinc concentration of waste liquid is 50g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate makees minus plate, and current density when controlling electrolysis is 380A/m2, temperature when control is electrolysed
Spend for 36 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 2.5kg/ cycles are added into electrolyte；Will be poly-
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene
Sodium dinaphthalenesulfonate solution；It is the 3.5kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Added into electrolyte poly-
Ethylene glycol solution, it is 0.8mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene is added into electrolyte
Sodium sulfonate solution, it is 0.3mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Embodiment 4
Present embodiments provide a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 175g/L, the zinc concentration of new liquid is 54g/L；The acid concentration of waste liquid is 178g/L, and the zinc concentration of waste liquid is 52g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate does positive plate, and current density when controlling electrolysis is 450A/m2, temperature when control is electrolysed
Spend for 39 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 2.5kg/ cycles are added into electrolyte；Will be poly-
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene
Sodium dinaphthalenesulfonate solution；It is the 3.5kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Added into electrolyte poly-
Ethylene glycol solution, it is 0.8mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene is added into electrolyte
Sodium sulfonate solution, it is 0.3mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Embodiment 5
Present embodiments provide a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 170g/L, the zinc concentration of new liquid is 53g/L；The acid concentration of waste liquid is 175g/L, and the zinc concentration of waste liquid is 51g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate does positive plate, and current density when controlling electrolysis is 400A/m2, temperature when control is electrolysed
Spend for 38 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 2.5kg/ cycles are added into electrolyte；Will be poly-
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene
Sodium dinaphthalenesulfonate solution；It is the 3.5kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Added into electrolyte poly-
Ethylene glycol solution, it is 0.8mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene is added into electrolyte
Sodium sulfonate solution, it is 0.3mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Comparative example 1
This comparative example provides a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 165g/L, the zinc concentration of new liquid is 52g/L；The acid concentration of waste liquid is 168g/L, and the zinc concentration of waste liquid is 50g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate does positive plate, and current density when controlling electrolysis is 380A/m2, temperature when control is electrolysed
Spend for 36 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 1kg/ cycles are added into electrolyte；By poly- third
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene two
Sodium naphthalene sulfonate solution；It is the 2kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Poly- second two is added into electrolyte
Alcoholic solution, it is 0.2mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene sulfonic acid is added into electrolyte
Sodium solution, it is 0.1mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Comparative example 2
This comparative example provides a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 165g/L, the zinc concentration of new liquid is 52g/L；The acid concentration of waste liquid is 168g/L, and the zinc concentration of waste liquid is 50g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate does positive plate, and current density when controlling electrolysis is 380A/m2, temperature when control is electrolysed
Spend for 36 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 4kg/ cycles are added into electrolyte；By poly- third
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene two
Sodium naphthalene sulfonate solution；It is the 5kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Poly- second two is added into electrolyte
Alcoholic solution, it is 1.2mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene sulfonic acid is added into electrolyte
Sodium solution, it is 0.5mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Comparative example 3
This comparative example provides a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 164g/L, the zinc concentration of new liquid is 55g/L；The acid concentration of waste liquid is 167g/L, and the zinc concentration of waste liquid is 53g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate does positive plate, and current density when controlling electrolysis is 380A/m2, temperature when control is electrolysed
Spend for 36 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 2kg/ cycles are added into electrolyte；By poly- third
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene two
Sodium naphthalene sulfonate solution；It is the 3kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Poly- second two is added into electrolyte
Alcoholic solution, it is 0.5mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene sulfonic acid is added into electrolyte
Sodium solution, it is 0.2mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Comparative example 4
This comparative example provides a kind of making for electrolysis additive for improving solution of zinc sulfate electrolytic zinc quality and production environment
With method, including：
Using solution of zinc sulfate as electrolyte, wherein, electrolyte includes new liquid and waste liquid；Wherein, the acid concentration of new liquid
For 165g/L, the zinc concentration of new liquid is 52g/L；The acid concentration of waste liquid is 168g/L, and the zinc concentration of waste liquid is 50g/L；With lead silver
Alloy sheets do positive plate, and extruded aluminum plate does positive plate, and current density when controlling electrolysis is 460A/m2, temperature when control is electrolysed
Spend for 35 DEG C；
When the consistency of the zinc on extruded aluminum plate declines, the gelatine solution 2kg/ cycles are added into electrolyte；By poly- third
Acrylamide, polyethylene glycol, sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene two
Sodium naphthalene sulfonate solution；It is the 3kg/ cycles to control the addition of polyacrylamide in the electrolytic solution；Poly- second two is added into electrolyte
Alcoholic solution, it is 0.5mg/L to control the concentration of polyglycol solution in the electrolytic solution；Methylene dinaphthalene sulfonic acid is added into electrolyte
Sodium solution, it is 0.2mg/L to control the concentration of sodium metnylene bis-naphthalene sulfonate in the electrolytic solution.
Experimental example 1
Experimental method：Using the embodiment 1-5 and comparative example 1-4 improvement solution of zinc sulfate electrolytic zinc quality provided and production
The application method of the electrolysis additive of environment, after being electrolysed in same time to electrolyte, minus plate is taken out, manually side
Method strips down precipitation zinc, and casting furnace is sent into after the zinc metal sheet stripped down is optimized into collocation by high quality zinc quality standard, controls
600 DEG C of fire box temperature processed ±, make zinc metal sheet be heated 500 DEG C ± at a temperature of be fused into the zinc liquid of molten state, while add a small amount of
Sal-ammoniac claws scum silica frost after stirring, zinc liquid cast molding, output zinc ingot metal, be arranged to experimental group 1-9；
With under experimental group 1-9 identical electrolytic conditions, only into electrolyte add with the present invention measure identical gelatine it is molten
Liquid, after being electrolysed in same time to electrolyte, minus plate is taken out, precipitation zinc is stripped down by artificial means, according to
Above method output zinc ingot metal, is arranged to experimental group 10；With under experimental group 1-9 identical electrolytic conditions, being added without the present invention and carrying
The additive of confession, after being electrolysed in same time to electrolyte, minus plate is taken out, under precipitation zinc is peeled off by artificial means
Come, output zinc ingot metal, is arranged to experimental group 11 according to the method described above；Lead, iron, cadmium and the zinc in zinc ingot metal are analysed in test experience group 1-11
Content, testing result is shown in Table 1：
The content balance of lead, iron, cadmium and zinc in the experimental group 1-11 of table 1 zinc ingot metal
From the data in table 1, it can be seen that the content of the lead, iron, cadmium and zinc in experimental group 1-10 zinc ingot metal is below experimental group 11, should
As a result show can actually solve that solution of zinc sulfate electrolytic zinc is second-rate, and leaded, iron and cadmium are higher using suitable additive
And the technical barrier that the ingot casting rate of recovery is low；The content of lead, iron, cadmium and zinc in experimental group 1-9 zinc ingot metal is below experimental group
10, the result shows, can actually make the fine and close effect of zine plate in traditional gelatine using additive formulations provided by the invention
On the basis of, comprehensively improve electrolytic environments, advantageously in the content for reducing lead, iron and cadmium in ingot casting.
The content of lead, iron, cadmium and zinc in experimental group 1-5 zinc ingot metal is below experimental group 6 and 7, compared to experimental group 1-
5, the addition proportioning of each component of additive is not in the range of experimental group 1-5 offers used by experimental group 6 and 7, the result
Show, be added to using additive each group component provided in an embodiment of the present invention in electrolyte advantageously in reducing in ingot casting
The content of lead, iron and cadmium, so as to the high-purity zinc ingot metal of output, improve the rate of recovery of zinc.
The content of lead, iron, cadmium and zinc in experimental group 1-5 zinc ingot metal is below experimental group 8, real compared to experimental group 1-5
Test used by group 8 in electrolyte that acid and zinc concentration be not in the range of experimental group 1-5 offers in new liquid and old liquid, the result
Show, using acid and zinc concentration scope in new liquid in electrolyte provided in an embodiment of the present invention and old liquid advantageously in reduction
The content of lead, iron and cadmium in ingot casting, so as to the high-purity zinc ingot metal of output, improve the rate of recovery of zinc.
The content of lead, iron, cadmium and zinc in experimental group 1-5 zinc ingot metal is below experimental group 9, real compared to experimental group 1-5
Not in the range of experimental group 1-5 offers, the result shows Electrolytic conditions, is implemented using the present invention used by testing group 9
The Electrolytic conditions scope that example provides is advantageously in the content for reducing lead, iron and cadmium in ingot casting, so that the high-purity zinc ingot metal of output,
Improve the rate of recovery of zinc.
In summary, by a kind of solution of zinc sulfate electrolytic zinc quality and production environment of improving provided in an embodiment of the present invention
Electrolysis additive formula, it can solve the problem that medicament is second-rate except the solution of zinc sulfate electrolytic zinc of cobalt institute output using the formula, contain
Lead and the technical barrier that iron is higher and the ingot casting rate of recovery is low；Improve site environment simultaneously, reduce environmental pollution；By of the invention real
The application method of the electrolysis additive formula of a kind of the improvement solution of zinc sulfate electrolytic zinc quality and production environment of example offer is provided, adopted
Can be eliminated with the application method influences the quality of solution zinc and the unfavorable factor of power consumption in operation is electrolysed, and significantly improves
Electrolytic zinc quality and operating environment
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
- A kind of 1. electrolysis additive formula for improving solution of zinc sulfate electrolytic zinc quality and production environment, it is characterised in that：Its group Dividing includes：Gelatine solution, polyacrylamide, polyethylene glycol and sodium metnylene bis-naphthalene sulfonate, are counted in parts by weight, the gelatine The addition of solution in the electrolytic solution is 2-3 parts/cycle, and the addition of the polyacrylamide in the electrolytic solution is 3-4 parts/week Phase；The concentration of the polyethylene glycol in the electrolytic solution is 0.5-1mg/L, the sodium metnylene bis-naphthalene sulfonate in the electrolytic solution dense Spend for 0.2-0.4mg/L.
- A kind of 2. electrolysis additive formula as claimed in claim 1 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that including：Using solution of zinc sulfate as electrolyte, positive plate is done with pb-ag alloy plate, extruded aluminum plate makees minus plate；In the calendering When the consistency of zinc on aluminium sheet declines, the gelatine solution is added into the electrolyte；It is described by the polyacrylamide Polyethylene glycol, the sodium metnylene bis-naphthalene sulfonate are configured to polyacrylamide solution, polyglycol solution and methylene dinaphthalene Sodium sulfonate solution, it is separately added into the electrolyte.
- 3. the electrolysis additive formula according to claim 2 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that the electrolyte includes new liquid and waste liquid, and the acid concentration of the new liquid is 165-175g/L, institute The zinc concentration for stating new liquid is 52-54g/L；The acid concentration of the waste liquid is 168-178g/L, and the zinc concentration of the waste liquid is 50- 52g/L。
- 4. the electrolysis additive formula according to claim 3 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that also include：Current density when controlling electrolysis is 380-450A/ ㎡.
- 5. the electrolysis additive formula according to claim 3 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that also include：It is 36-39 DEG C to control temperature during electrolysis.
- 6. the electrolysis additive formula according to claim 3 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that the gelatine solution need to add in the electrolyte in after going out groove 8 hours.
- 7. the electrolysis additive formula according to claim 3 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that when the voltage in electrolytic cell is higher than 3.32V, stop adding the polyacrylamide solution.
- 8. the electrolysis additive formula according to claim 3 for improving solution of zinc sulfate electrolytic zinc quality and production environment Application method, it is characterised in that when the surface of the extruded aluminum plate produces flakey, the polyethylene glycol is in the electrolyte In concentration be 1mg/L.
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| CN110747490A (en) * | 2019-11-21 | 2020-02-04 | 株洲冶炼集团股份有限公司 | Zinc electrodeposition method |
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| CN110512237A (en) * | 2019-09-27 | 2019-11-29 | 中国科学院长春应用化学研究所 | A kind of compound additive and its application in electrowinning zinc |
| CN110747490A (en) * | 2019-11-21 | 2020-02-04 | 株洲冶炼集团股份有限公司 | Zinc electrodeposition method |
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Application publication date: 20180330 |