CN106894057A - The preparation method of magnesium cobalt alloy - Google Patents
The preparation method of magnesium cobalt alloy Download PDFInfo
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- CN106894057A CN106894057A CN201710014008.7A CN201710014008A CN106894057A CN 106894057 A CN106894057 A CN 106894057A CN 201710014008 A CN201710014008 A CN 201710014008A CN 106894057 A CN106894057 A CN 106894057A
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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
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/36—Alloys obtained by cathodic reduction of all their ions
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Abstract
The invention provides a kind of preparation method of magnesium cobalt alloy.The method is comprised the following steps：By the mass ratio configuration magnesium salts and the mixed material of cobalt salt of magnesium and cobalt in the magnesium cobalt alloy to be prepared；Mixed material is carried out into fused salt electrolysis codeposition, the relative error of the electrolysis electricity of magnesium ion and the required faraday's electricity of cobalt ions electric discharge and electrolysis mixed material in period control mixed material obtains magnesium cobalt alloy within ± 15%.Using above-mentioned preparation method, by fused salt electrolysis codeposition method, the faraday's electricity needed for the electric discharge of control magnesium ion and cobalt ions matches uniformity with electrolysis electricity during electrolysis, the two relative error is controlled within ± 15%, the content of two kinds of metal ingredients in magnesium cobalt alloy product can be made substantially consistent with target content, so as to reach the purpose of effectively control alloying component.And by above-mentioned fused salt electrolysis codeposition method, the present invention has prepared magnesium cobalt alloy.
Description
Technical field
The present invention relates to alloy material preparing technical field, in particular to a kind of preparation method of magnesium cobalt alloy.
Background technology
Magnesium alloy has numerous excellent property such as density low, and mechanical performance and chemical property are excellent and can reclaim
The characteristic such as utilize, thus be known as " green alloy ".Magnesium alloy is widely used in various fields such as auto industry, electronics
Product, aviation, military affairs, and its consumption has the trend for increasing considerably.Magnesium-based cobalt alloy belongs to the one kind in magnesium alloy series.
The method of this kind of alloy of traditional mode of production is smelting process, that is, be co-doped with method：Various alloying component elements are by each independent
Metallurgical process be obtained after, by its melting obtain alloy.This method flow is long, and all metallic elements therein have to pass through respectively
From metallurgical process and its then refining obtain, this process is numerous and diverse, high cost；Because its bulk composition is active metal,
Melting production alloy process must have inert atmosphere or vacuum environment, and metal loss rate is high, and cause the pollution of environment.
For a long time, people continuously attempt to use fused salt electrolysis process to produce alloy.Fused salt electrolysis process prepares alloy can divide again
It is two methods of electrolysis diffusion method and electrolytic codeposition of nickel method.
In electrolysis diffusion method, most representative work is the magnesium alloy electrolysis diffusion method that Ram Sharma are proposed, in electricity
Addition liquid cobalt, as negative electrode, electrolytic oxidation magnesium or magnesium chloride, makes magnesium that acquisition magnesium cobalt alloy is deposited on cobalt in advance in solution liquid, its
Main thought is that the alloying metal with relative inertness deposits other units as negative electrode, thereon and usually obtains alloy.
Electrolysis diffusion method is a kind of method that can effectively prevent alloying element scaling loss and can carry out exact composition control.
However, whole electrolytic process alloying element content is continuously increased, this causes alloying component not in the same time to have very very much not naturally
Together, especially master alloying composition gradually will increase to concentration very high from zero, when electrodeposited alloy element reached it is required
When measuring, electrolytic process must stop, and take out alloy, then change negative electrode and repeat said process.In electrolytic process not
The alloy of target component can be at any time obtained, such process can not be referred to as a continuous process.
Electrolytic codeposition of nickel method is discharged so as to obtain alloy simultaneously in negative electrode under same potential using many kinds of metal ions
Method.However, existing electrolytic codeposition of nickel method cannot accomplish the composition in effectively control alloy, and there is no magnesium cobalt alloy at present
The report of co-deposition and Composition Control.
The content of the invention
It is a primary object of the present invention to provide a kind of preparation method of magnesium cobalt alloy, to solve to be electrolysed in the prior art altogether
Sedimentation cannot realize that magnesium cobalt alloy is co-deposited, and cannot effectively control the problem of magnesium cobalt alloy composition.
To achieve these goals, according to an aspect of the invention, there is provided a kind of preparation method of magnesium cobalt alloy, its
Comprise the following steps：By the mass ratio configuration magnesium salts and the mixed material of cobalt salt of magnesium and cobalt in the magnesium cobalt alloy to be prepared；Will
Mixed material carries out fused salt electrolysis codeposition, the faraday needed for magnesium ion and cobalt ions electric discharge in period control mixed material
The relative error of the electrolysis electricity of electricity and electrolysis mixed material obtains magnesium cobalt alloy within ± 15%.
Further, the magnesium ion in control mixed material and the faraday's electricity needed for cobalt ions electric discharge mix with electrolysis
During the relative error of the electrolysis electricity of raw material is the step of within ± 15%, determine that electrolysis mixing is former according to formula I or formula II
The Faradaic current and electrolysis time of material, and then magnesium cobalt alloy is obtained, wherein,
Formula I is：
Formula II is：
In formula I and II, m(Mg)saltIt is the quality of magnesium salts in mixed material, m(Co)saltIt is the matter of cobalt salt in mixed material
Amount, MMgIt is the relative atomic mass of magnesium, MCoIt is the relative atomic mass of cobalt, M(Mg)saltIt is the relative molecular mass of magnesium salts,
M(Co)saltIt is the relative molecular mass of cobalt salt, I is Faradaic current, and t is electrolysis time, and a is the quality of cobalt in 100g magnesium cobalt alloys,
F is Faraday constant.
Further, with electrolysis time t as interval time, to mixed material is periodically added into electrolytic furnace, with continuous
Property prepares magnesium cobalt alloy.
Further, magnesium salts is magnesium chloride, and cobalt salt is cobalt chloride.
Further, during fused salt electrolysis codeposition, the electrolyte of use includes alkali molten salt.
Further, the composition of alkali molten salt includes lithium chloride and/or sodium chloride.
Further, also including magnesium chloride that mass fraction is 8~15% in electrolyte.
Further, by weight percentage, electrolyte include 8~15% magnesium chloride, 50~70% lithium chloride and
20~40% sodium chloride.
Further, during fused salt electrolysis codeposition, electrolysis temperature is 700~900 DEG C.
Further, during fused salt electrolysis codeposition, cathode-current density is 0.5~1.5A/cm2。
Apply the technical scheme of the present invention, there is provided a kind of preparation method of magnesium cobalt alloy, it is comprised the following steps：By institute
The mass ratio configuration magnesium salts and the mixed material of cobalt salt of magnesium and cobalt in the magnesium cobalt alloy to be prepared；Mixed material is carried out into fused salt electricity
Solution is co-deposited, magnesium ion and the required faraday's electricity of cobalt ions electric discharge and electrolysis mixed material in period control mixed material
Electrolysis electricity relative error within ± 15%, obtain magnesium cobalt alloy.
Using above-mentioned preparation method, by fused salt electrolysis codeposition method, magnesium ion and cobalt ions are controlled during electrolysis
Faraday's electricity needed for electric discharge matches uniformity with electrolysis electricity, and the two relative error is controlled within ± 15%, can
Make the content of two kinds of metal ingredients in magnesium cobalt alloy product substantially consistent with target content, so as to reach effectively control alloying component
Purpose.And by above-mentioned fused salt electrolysis codeposition method, the present invention has prepared magnesium cobalt alloy.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention is described in detail below in conjunction with embodiment.
The application is described in further detail below in conjunction with specific embodiment, these embodiments are it is not intended that limit this
Apply for scope required for protection.
As described by background section, electrolytic codeposition of nickel method of the prior art cannot realize that magnesium cobalt alloy is coprecipitated
Product, and cannot effectively control magnesium cobalt alloy composition.
In order to solve this problem, the invention provides a kind of preparation method of magnesium cobalt alloy, it is comprised the following steps：Press
The mass ratio configuration magnesium salts and the mixed material of cobalt salt of magnesium and cobalt in the magnesium cobalt alloy to be prepared；Mixed material is carried out into fused salt
Electrolytic codeposition of nickel, the magnesium ion in period control mixed material and the faraday's electricity needed for the electric discharge of cobalt ions are mixed with this is electrolysed
The relative error of electrolysis electricity of raw material is closed within ± 15%, magnesium cobalt alloy is obtained.
Using above-mentioned preparation method, by fused salt electrolysis codeposition method, magnesium ion and cobalt ions are controlled during electrolysis
Faraday's electricity needed for electric discharge match uniformity with the electrolysis electricity of electrolysis mixed material, will both relative error control ±
Within 15%, the content of two kinds of metal ingredients in magnesium cobalt alloy product can be made substantially consistent with target content, had so as to reach
The purpose of effect control alloying component.And magnesium cobalt alloy has been prepared by above-mentioned fused salt electrolysis codeposition method.
Specifically, compared to traditional fused salt electrolysis codeposition process, in the present invention the step of increased control composition.
For preparing the alloy of magnesium cobalt binary system, by the magnesium cobalt alloy to be prepared magnesium and cobalt mass ratio configuration magnesium salts and
The mixed material of cobalt salt, fused salt electrolysis codeposition is carried out during mixed material then is put into electrolytic furnace.If not controlling faraday
Electricity matches uniformity with electrolysis electricity, and metal ion is equally existed in the electrolyte used due to electrolytic process, these gold
Electrolysis is separated out category ion in the lump easily in electrolytic process, so as to destroy the binary system of magnesium cobalt alloy as impurity component.This
Invention is based on this point, it is proposed that the magnesium ion of mixed material and putting for cobalt ions are controlled during fused salt electrolysis codeposition
The relative error of faraday's electricity needed for electricity and the electrolysis electricity of electrolysis mixed material within ± 15%, so equivalent to for
The electrolysis of magnesium ion and cobalt ions separates out the supply sum for being provided with electrolysis electricity such that it is able to effectively prevent miscellaneous in electrolyte
Matter metal ion is separated out, and has efficiently controlled the magnesium cobalt content of alloy product, makes it substantially consistent with target content.
In the above-mentioned preparation method that the present invention is provided, electrolysis electricity can be controlled by electrolysis time and Faradaic current.
In a preferred embodiment, magnesium ion and the required faraday's electricity of cobalt ions electric discharge and electrolysis in control mixed material
During the relative error of the electrolysis electricity of above-mentioned mixed material is the step of within ± 15%, electricity is determined according to formula I or formula II
The Faradaic current and electrolysis time of mixed material are solved, and then obtain magnesium cobalt alloy,
Formula I is
Formula II is
In formula I and II, m(Mg)saltIt is the quality of magnesium salts in mixed material, m(Co)saltIt is the matter of cobalt salt in mixed material
Amount, MMgIt is the relative atomic mass of magnesium, MCoIt is the relative atomic mass of cobalt, M(Mg)saltIt is the relative molecular mass of magnesium salts,
M(Co)saltIt is the relative molecular mass of cobalt salt, I is Faradaic current, and t is electrolysis time (s), and a is the matter of cobalt in 100g magnesium cobalt alloys
Amount, F is Faraday constant (96485C/mol).
What deserves to be explained is, above-mentioned 1 ± 0.15 refers to a value range, and it is more than or equal to 0.85, less than or equal to 1.15.
Above-mentioned a values can pass through the mass ratio of the cobalt in the subject alloy to be prepared to obtain.m(Mg)saltCan lead to
The quality and proportioning for crossing be electrolysed mixed material are obtained.So, Faradaic current can be known by above-mentioned Formulas I or Formula II
With the relation of electrolysis time.In actual mechanical process, the value of Faradaic current can be preset, it is possible to obtain according to above formula
Electrolysis time, so as to apply during actual electrolytic codeposition of nickel.Conversely, electrolysis time can also be preset, such as
It is required that how long it is interior complete electrolysis, it is possible to the size of Faradaic current is determined according to above formula.In addition it is also possible to default electrolysis
Time and Faradaic current, so as to determine the quality of magnesium salts and cobalt salt in mixed material according to above formula.
Generally, the preferably relative error of faraday's electricity and electrolysis electricity is within+15%, i.e., 0≤(electrolysis electricity
Amount-faraday's electricity)/electrolysis electricity ＜ 15%.
Electrolysis electricity is controlled using electrolysis time and Faradaic current, so as to control alloying component so that in the present invention
Preparation method can use continuous production technology.In a preferred embodiment, with electrolysis time t as interval time,
To mixed material is periodically added into electrolytic furnace, magnesium cobalt alloy is prepared with continuity.
As it was noted above, the present invention controls electrolysis electricity by electrolysis time and Faradaic current, so as to reach mixing
In raw material one is matched needed for magnesium ion and cobalt ions electric discharge between faraday's electricity and the electrolysis electricity for being electrolysed the mixed material
Cause property.Therefore, in the electrolysis time t shown in above-mentioned Formulas I or Formula II, can just by the mixed material electrolytic codeposition of nickel.
On the basis of this, with electrolysis time t as interval time, to above-mentioned mixed material is periodically added into electrolytic furnace, company can be reached
Continuous property prepares the purpose of magnesium cobalt alloy.And the alloy taken out after each time interval, its composition is basically identical with preset value.
In a preferred embodiment, above-mentioned magnesium salts is magnesium chloride, and cobalt salt is cobalt chloride.Compared to other magnesium salts and
Cobalt salt, magnesium chloride and cobalt chloride have electrolysis performance higher.
The electrolyte used during above-mentioned fused salt electrolysis codeposition can be electrolyte commonly used in the art, the purpose is to
Support the electron motion in electrolytic process.In a preferred embodiment, during fused salt electrolysis codeposition, the electricity of use
Solution matter includes alkali molten salt.The activity of alkali metal is better than magnesium and cobalt, correspondingly, in electrolytic process be later than magnesium ion and cobalt from
Son.Using alkali molten salt as electrolyte, with reference to above-mentioned electrolysis electricity rate-determining steps, can further prevent metal impurities from entering
In entering alloy, so as to be more beneficial for the Composition Control of binary system alloy.It is highly preferred that the composition of alkali molten salt includes chlorination
Lithium and/or sodium chloride.
In a preferred embodiment, also including magnesium chloride that mass fraction is 8~15% in electrolyte.In electrolysis
8~15% magnesium chloride is added in matter, the stability during fused salt electrolysis codeposition can be further improved.It is worth explanation
It is that, based on foregoing Composition Control step, the magnesium chloride in electrolyte system has no effect on the component content in alloy product.More
Preferably, by weight percentage, electrolyte includes 8~15% magnesium chloride, 50~70% lithium chloride and 20~40%
Sodium chloride.
Other electrolysis process can be adjusted.In a preferred embodiment, during fused salt electrolysis codeposition,
Electrolysis temperature is 700~900 DEG C.Cathode-current density is 0.5~1.5A/cm2.Under the process conditions, electrolytic codeposition of nickel process
More stablize, so as to be conducive to further improving the quality stability of magnesium cobalt alloy product.
Beneficial effects of the present invention are further illustrated by the following examples.
Embodiment 1
Alloy is designed as Mg-2wt%Co (wherein the content of Co is 2wt%), by this proportional arrangement magnesium chloride and cobalt chloride
Mixture.
Electrolysis time (interval time) is preset for 30min, Faradaic current is dc source 2A；
By formulaCalculate mixed material
The quality of middle magnesium chloride, accordingly weighs the part in said mixture for mixed material, and by this mixed material to electrolytic furnace
In periodically feed, carry out continuous fused salt electrolysis codeposition.
Specific electrolytic parameter is as follows：
Electrolysis cathode is stainless steel, and anode is graphite；Dc source：2A；900 DEG C of electrolyte temperature；Cathode-current density
1A/cm2；Electrolyte is constituted：Magnesium chloride 15wt%- lithium chloride 60wt%- sodium chloride 25wt%.Mixed material feeding study on period is
30min.Under the conditions of above-mentioned technological parameter, continuous electrolysis take out alloy after 10 hours, use icp analysis cobalt content.
Specific data are as shown in the table：
| Alloy is designed | Mg-2wt%Co |
| Gained alloying component | Mg-1.95wt%Co |
Embodiment 2
Alloy is designed as Mg-2wt%Co (wherein the content of Co is 2wt%), by this proportional arrangement magnesium chloride and cobalt chloride
Mixture.
Electrolysis time (interval time) is preset for 30min, Faradaic current is dc source 2A；
By formulaCalculate mixed
Close the quality of magnesium chloride in raw material, accordingly weigh a part in said mixture for mixed material, and by this mixed material to
Periodically fed in electrolytic furnace, carry out continuous fused salt electrolysis codeposition.
Specific electrolytic parameter is as follows：
Electrolysis cathode is molybdenum, and anode is graphite；Dc source：2A；700 DEG C of electrolyte temperature；Cathode-current density 0.5A/
cm2；Electrolyte is constituted：Magnesium chloride 8wt%- lithium chloride 70wt%- sodium chloride 22wt%.Mixed material feeding study on period is
30min.Under the conditions of above-mentioned technological parameter, continuous electrolysis take out alloy after 10 hours, use icp analysis cobalt content.
Specific data are as shown in the table：
Embodiment 3
Alloy is designed as Mg-2wt%Co (wherein the content of Co is 2wt%), by this proportional arrangement magnesium chloride and cobalt chloride
Mixture.
Electrolysis time (interval time) is preset for 30min, Faradaic current is dc source 2A；
By formulaCalculate mixed
Close the quality of magnesium chloride in raw material, accordingly weigh a part in said mixture for mixed material, and by this mixed material to
Periodically fed in electrolytic furnace, carry out continuous fused salt electrolysis codeposition.
Specific electrolytic parameter is as follows：
Electrolysis cathode is tungsten, and anode is graphite；Dc source：2A；950 DEG C of electrolyte temperature；Cathode-current density 1.5A/
cm2；Electrolyte is constituted：Magnesium chloride 10wt%- lithium chloride 50wt%- sodium chloride 40wt%.Mixed material feeding study on period is
30min.Under the conditions of above-mentioned technological parameter, continuous electrolysis take out alloy after 10 hours, use icp analysis cobalt content.
Specific data are as shown in the table：
| Alloy is designed | Mg-2wt%Co |
| Gained alloying component | Mg-1.94wt%Co |
Embodiment 4
Alloy is designed as Mg-2wt%Co (wherein the content of Co is 2wt%), by this proportional arrangement magnesium chloride and cobalt chloride
Mixture.
Electrolysis time (interval time) is preset for 30min, Faradaic current is dc source 2A；
By formulaCalculate
The quality of magnesium chloride in mixed material, accordingly weighs the part in said mixture for mixed material, and by this mixed material
To periodically being fed in electrolytic furnace, continuous fused salt electrolysis codeposition is carried out.
Specific electrolytic parameter is as follows：
Electrolysis cathode is tungsten, and anode is graphite；Dc source：2A；950 DEG C of electrolyte temperature；Cathode-current density 1.6A/
cm2；Electrolyte is constituted：Magnesium chloride 5wt%- lithium chloride 75wt%- sodium chloride 20wt%.Mixed material feeding study on period is
30min.Under the conditions of above-mentioned technological parameter, continuous electrolysis take out alloy after 10 hours, use icp analysis cobalt content.
Specific data are as shown in the table：
| Alloy is designed | Mg-2wt%Co |
| Gained alloying component | Mg-1.93wt%Co |
Comparative example 1
Alloy is designed as Mg-2wt%Co (wherein the content of Co is 2wt%), by this proportional arrangement magnesium chloride and cobalt chloride
Mixture.
Electrolysis time (interval time) is preset for 30min, Faradaic current is dc source 2A；
By formulaCalculate
The quality of magnesium chloride in mixed material, accordingly weighs the part in said mixture for mixed material, and by this mixed material
To periodically being fed in electrolytic furnace, continuous fused salt electrolysis codeposition is carried out.
Specific electrolytic parameter is as follows：
Electrolysis cathode is tungsten, and anode is graphite；Dc source：2A；950 DEG C of electrolyte temperature；Cathode-current density 1.6A/
cm2；Electrolyte is constituted：Magnesium chloride 5wt%- lithium chloride 75wt%- sodium chloride 20wt%.Mixed material feeding study on period is
30min.Under the conditions of above-mentioned technological parameter, continuous electrolysis take out alloy after 10 hours, use icp analysis cobalt content.
Specific data are as shown in the table：
| Alloy is designed | Mg-2wt%Co |
| Gained alloying component | Mg-1.90wt%Co-0.08wt%Li-0.03wt%Na |
Comparative example 2
Alloy is designed as Mg-2wt%Co (wherein the content of Co is 2wt%), by this proportional arrangement magnesium chloride and cobalt chloride
Mixture.
Electrolysis time (interval time) is preset for 30min, Faradaic current is dc source 2A；
By formulaCalculate
The quality of magnesium chloride in mixed material, accordingly weighs the part in said mixture for mixed material, and by this mixed material
To periodically being fed in electrolytic furnace, continuous fused salt electrolysis codeposition is carried out.
Specific electrolytic parameter is as follows：
Electrolysis cathode is tungsten, and anode is graphite；Dc source：2A；950 DEG C of electrolyte temperature；Cathode-current density 1.6A/
cm2；Electrolyte is constituted：Magnesium chloride 5wt%- lithium chloride 75wt%- sodium chloride 20wt%.Mixed material feeding study on period is
30min.Under the conditions of above-mentioned technological parameter, continuous electrolysis take out alloy after 10 hours, use icp analysis cobalt content.
Specific data are as shown in the table：
| Alloy is designed | Mg-2wt%Co |
| Gained alloying component | Mg-1.850wt%Co |
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Using above-mentioned preparation method, by fused salt electrolysis codeposition method, magnesium cobalt alloy can be prepared.More importantly, originally
Invention is consistent with electrolysis electricity matching by the faraday's electricity needed for the electric discharge of control magnesium ion and cobalt ions during electrolysis
Property, the two relative error is controlled within ± 15%, the content of two kinds of metal ingredients in magnesium cobalt alloy product can be made basic
It is consistent with target content, so as to reach the purpose of effectively control alloying component.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of magnesium cobalt alloy, it is characterised in that comprise the following steps：
By the mass ratio configuration magnesium salts and the mixed material of cobalt salt of magnesium and cobalt in the magnesium cobalt alloy to be prepared；
The mixed material is carried out into fused salt electrolysis codeposition, period controls magnesium ion and cobalt ions in the mixed material to put
The relative error of the electrolysis electricity of faraday's electricity and the electrolysis mixed material needed for electricity obtains described within ± 15%
Magnesium cobalt alloy.
2. preparation method according to claim 1, it is characterised in that magnesium ion in the control mixed material and
The relative error of the electrolysis electricity of faraday's electricity and the electrolysis mixed material needed for cobalt ions electric discharge is within ± 15%
The step of in, the Faradaic current and electrolysis time of the electrolysis mixed material are determined according to formula I or formula II, and then obtain institute
Magnesium cobalt alloy is stated, wherein,
The formula I is：
The formula II is：
In the formula I and II, m(Mg)saltThe quality of magnesium salts, m described in the mixed material(Co)saltIt is the mixed material
Described in cobalt salt quality, MMgIt is the relative atomic mass of magnesium, MCoIt is the relative atomic mass of cobalt, M(Mg)saltIt is the magnesium salts
Relative molecular mass, M(Co)saltIt is the relative molecular mass of the cobalt salt, I is the Faradaic current, when t is the electrolysis
Between, a is the quality of cobalt in magnesium cobalt alloy described in 100g, and F is Faraday constant.
3. preparation method according to claim 2, it is characterised in that with the electrolysis time t as interval time, to electrolysis
The mixed material is periodically added into stove, the magnesium cobalt alloy is prepared with continuity.
4. preparation method according to any one of claim 1 to 3, it is characterised in that the magnesium salts is magnesium chloride, described
Cobalt salt is cobalt chloride.
5. preparation method according to claim 4, it is characterised in that during the fused salt electrolysis codeposition, use
Electrolyte includes alkali molten salt.
6. preparation method according to claim 5, it is characterised in that the composition of the alkali molten salt includes lithium chloride
And/or sodium chloride.
7. preparation method according to claim 6, it is characterised in that also include in the electrolyte mass fraction be 8~
15% magnesium chloride.
8. preparation method according to claim 7, it is characterised in that by weight percentage, the electrolyte includes 8~
15% magnesium chloride, 50~70% lithium chloride and 20~40% sodium chloride.
9. the preparation method according to any one of claim 6 to 8, it is characterised in that the fused salt electrolysis codeposition mistake
Cheng Zhong, electrolysis temperature is 700~900 DEG C.
10. preparation method according to claim 9, it is characterised in that during the fused salt electrolysis codeposition, negative electrode electricity
Current density is 0.5~1.5A/cm2。
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| CN1035532A (en) * | 1988-02-06 | 1989-09-13 | 东北工学院 | The method of electrolysis production aluminum silicon alloy |
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| CN102220608A (en) * | 2011-06-09 | 2011-10-19 | 河北联合大学 | Preparation method of silicon-manganese alloy |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035532A (en) * | 1988-02-06 | 1989-09-13 | 东北工学院 | The method of electrolysis production aluminum silicon alloy |
| JP2008195969A (en) * | 2007-02-08 | 2008-08-28 | Toyohashi Univ Of Technology | Method for manufacturing alloy ingot by molten salt electrolysis using esr heating |
| CN101440508A (en) * | 2008-12-12 | 2009-05-27 | 北京科技大学 | Preparation of reactive metal based alloy |
| CN101886197A (en) * | 2010-07-09 | 2010-11-17 | 哈尔滨工程大学 | Aluminum-lithium-samarium alloy and fused salt electrolysis preparation method thereof |
| CN102220608A (en) * | 2011-06-09 | 2011-10-19 | 河北联合大学 | Preparation method of silicon-manganese alloy |
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