CN101280434A - Method for preparing aluminum-lithium compound in atmospheric environment - Google Patents
Method for preparing aluminum-lithium compound in atmospheric environment Download PDFInfo
- Publication number
- CN101280434A CN101280434A CNA2007100937334A CN200710093733A CN101280434A CN 101280434 A CN101280434 A CN 101280434A CN A2007100937334 A CNA2007100937334 A CN A2007100937334A CN 200710093733 A CN200710093733 A CN 200710093733A CN 101280434 A CN101280434 A CN 101280434A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- lithium compound
- lithium
- atmospheric environment
- under atmospheric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The invention relates to a method for preparing the aluminum-lithium compound under the atmospheric environment. An aluminum product is taken as cathode material to be dipped into electrolyte, the electrolyte comprises lithium chloride and potassium chloride, direct current voltage is exerted under the operating temperature in order to perform the electrolytic diffusion reaction, to ensure lithium atoms contained in the electrolyte to be diffused into the aluminum product of the cathode material, to obtain the aluminum-lithium compound (AlLi). By dint of the electrolytic diffusion reaction in the electrolyte containing the lithium chloride and the potassium chloride, the direct current voltage is exerted under the operating temperature to cause the lithium atoms to be reduced to a cathode and to be diffused into the aluminum product of the cathode, so as to obtain the aluminum-lithium compound (AlLi). Because of high temperature, the lithium atoms are diffused into the cathode material to form the aluminum-lithium compound, and because the raw material is the lithium chloride, the aluminum-lithium compound has stable chemical activity, can be conveniently transported and stored, and still can reduce the production cost of the aluminum-lithium compound, increase the application of the aluminum-lithium compound, and be suitable for utility.
Description
Technical field
The present invention relates to a kind of method for preparing aluminum-lithium compound, particularly relate to and a kind ofly can transport easily, store, more can reduce the aluminum-lithium compound production cost, what increase its range of application prepares the method for aluminum-lithium compound with the electrolysis method of diffusion under atmospheric environment.
Background technology
Aluminium alloy has advantages such as proportion is little, thermal conductivity good, be easy to be shaped, cheap, therefore is widely used in fields such as communications and transportation, light industry building materials, is the alloy most widely used in the light alloy, that consumption is maximum.Development trend now is for towards lighter alloy or the compound of preparation weight, and owing to lithium is the lightest metal of weight, therefore adding lithium is light-weighted optimal selection in material.
Aluminum current-lithium (AlLi) application of compound is still not general, and this is that the alloying constituent of making is not easy control owing in its preparation certain degree of difficulty is arranged.Preparation methods such as the iron-lithium in past (FeLi) compound, copper-lithium (CuLi) compound generally are in vacuum or have in the reaction chamber of protective atmosphere and carry out Prepared by Ball Milling, its manufacturing process source of more consuming energy not only consuming time.The ultimate principle of ball milled is a mechanical metallurgy, that is mechanically, forces metal-powder and lithium grain to mix.Yet, because being all, aluminium powder and lithium grain possess high reactivity, so have degree of difficulty with method for preparing aluminium-lithium (AlLi) compound, feasibility is lower.
The method for preparing aluminum-lithium compound at present in the prior art generally is pure lithium to be added the molten soup of aluminium prepare aluminum-lithium compound under vacuum environment, yet the lithium metal is active strong, arround moisture slightly all may cause the moment gasification of lithium, make not only difficulty of fusion process, and dangerous high.
This shows that the method for above-mentioned existing preparation aluminum-lithium compound obviously still has inconvenience and defective, and demands urgently further being improved in preparation method and use thereof.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and general preparation method does not have appropriate method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new method that under atmospheric environment, prepares aluminum-lithium compound, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that the method for above-mentioned existing preparation aluminum-lithium compound exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and expertise, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of new method that under atmospheric environment, prepares aluminum-lithium compound, make it have practicality more.Through constantly research, design, and after studying repeatedly and improving, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the existing defective of method of existing preparation aluminum-lithium compound, and a kind of new method for preparing aluminum-lithium compound under atmospheric environment is provided, technical problem to be solved is to make it can solve the problem of the high risk, feedstock delivery costliness and the high storage cost that have traditional vacuum ball milled or vacuum smelting method existence now, is very suitable for practicality.
The object of the invention to solve the technical problems is to adopt following technical scheme to realize.A kind of method that under atmospheric environment, prepares aluminum-lithium compound according to the present invention's proposition, it is as cathode material with an aluminium, soak and place an electrolytic solution, composition part of this electrolytic solution comprises lithium chloride and Repone K, and under a working temperature, apply a direct current voltage to carry out an electrolysis diffusion reaction, lithium atom contained in the electrolytic solution is diffused in the aluminium of negative electrode, and obtain aluminum-lithium compound (AlLi).
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid method for preparing aluminum-lithium compound under atmospheric environment, composition part of wherein said electrolytic solution comprises the lithium chloride of 20～45wt% and the Repone K of 30～60wt%.
The aforesaid method for preparing aluminum-lithium compound under atmospheric environment, wherein said working temperature are that the boundary is between about 450 ℃～about 600 ℃ of scopes.
The aforesaid method for preparing aluminum-lithium compound under atmospheric environment, wherein said volts DS is between 3V～10V.
The aforesaid method for preparing aluminum-lithium compound under atmospheric environment, the anode material of wherein said electrolysis diffusion reaction is to use graphite.
The aforesaid method for preparing aluminum-lithium compound under atmospheric environment, the composition of the wherein said aluminum-lithium compound of making can be between between the Al-2wt.%Li to Al-50wt.%Li.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, in order to achieve the above object, a kind of method that under atmosphere, prepares aluminum-lithium compound according to the present invention, comprise with an aluminium as cathode material, soak and place an electrolytic solution that contains lithium chloride and Repone K, and under a working temperature, apply a direct current voltage to carry out the electrolysis diffusion reaction, the lithium atom in the electrolytic solution is diffused in the aluminium of negative electrode, and obtain aluminum-lithium compound (AlLi).In this bath composition, lithium chloride provides the lithium source, and Repone K is mainly fusing assistant, uses the reduction electrolyte temperature, and can increase electrolyte flow.Electrolysis diffusion reaction in the electrolytic solution is:
Anode: 2Cl
-→ Cl
2+ 2e
-
Negative electrode: Li
++ e
-→ Li
According to aforesaid method, can be made into composition between the aluminum-lithium compound between the Al-2wt.%Li to Al-50wt.%Li.Because the affinity extreme difference of potassium and aluminium (cathode material), so after preparing aluminum-lithium compound according to the present invention, the potassium content of this compound is less than 50ppm.And sodium belongs to and is common impurity in the general chlorination salt.Through quantitative analysis, be less than 30ppm with the sodium content of the aluminum-lithium compound of the present invention preparation.
By technique scheme, the present invention prepares aluminum-lithium compound under atmospheric environment method has following advantage and beneficial effect at least: the invention provides a kind of safe and easy method and prepare aluminum-lithium compound, it is with the negative electrode of aluminium as electrochemical reaction, in the electrolytic solution that contains lithium chloride and Repone K, carry out electrolytic reaction, make lithium atom reduction and be deposited on the cathode material.Because high temperature, thus lithium atom by diffusing in the cathode material, and formation aluminum-lithium compound.Because the raw material that uses is to be lithium chloride, has stable chemically reactive, can transport easily, store, and more can reduce the production cost of aluminum-lithium compound, increases its range of application, is very suitable for practicality.
In sum, the invention relates to a kind of method that under atmospheric environment, prepares aluminum-lithium compound, being included in one contains in the electrolytic solution of lithium chloride and Repone K and carries out the electrolysis diffusion reaction, under a working temperature, apply a direct current voltage and lithium atom is reduced in negative electrode and Yin Gaowen and diffuse in the aluminium of negative electrode, and can obtain aluminium one lithium compound (AlLi).The present invention can solve the problem of the high risk, feedstock delivery costliness and the high storage cost that have traditional vacuum ball milled or vacuum smelting method existence now, is very suitable for practicality.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on preparation method or function, obvious improvement is arranged technically, and the more existing method for preparing aluminum-lithium compound under atmospheric environment has the outstanding effect of enhancement, thereby be suitable for practicality more, and have the extensive utility value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technique means of the present invention, and can be implemented according to the content of specification sheets, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a kind of flow chart of steps for preparing aluminum-lithium compound under atmospheric environment that illustrates according to preferred embodiment of the present invention.
Fig. 2 is the structural representation of the electrolyzer of preferred embodiment of the present invention.
Fig. 3 (A) is the employed aluminium photo of the negative electrode figure of one embodiment of the invention.
Fig. 3 (B) is the X-x-ray diffraction figure spectrogram of this aluminium of Fig. 3 (A).
Fig. 3 (C) is the synoptic diagram that carries out the aluminum-lithium compound sheet material that forms after the electrolysis diffusion process.
Fig. 3 (D) is the X-x-ray diffraction figure spectrogram of this aluminum-lithium compound sheet material of Fig. 3 (C).
200: electrolyzer 210: outer cell body
211: top cover 220: internal layer
221: back up pad 230: container
241: electrolytic solution 242: anode
243: anode 244: the cathode branch support
245: alumina tube 246: dry gas
250: well heater 260: thermopair
Embodiment
Reach technique means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of method, preparation method, step, feature and the effect thereof that under atmospheric environment, prepares aluminum-lithium compound that foundation the present invention proposes, describe in detail as after.
See also Fig. 1 and shown in Figure 2, Fig. 1 is a kind of flow chart of steps for preparing aluminum-lithium compound under atmospheric environment that illustrates according to preferred embodiment of the present invention.Fig. 2 is the structural representation of the electrolyzer of preferred embodiment of the present invention.Preparing the embodiment of the method for aluminum-lithium compound according to the present invention under atmospheric environment, is to be loaded with electrolytic solution 241 under atmosphere in electrolyzer 200, with the preparation aluminum-lithium compound.The constituent of this electrolytic solution comprises the lithium chloride of 20～45wt% and the Repone K of 30～60wt%.
This electrolyzer 200 is the structure of pair of lamina, comprises an outer cell body 210 and an internal layer 220, and internal layer 220 is the aluminum oxide material, and the top of outer cell body 210 has a top cover 211, and this top cover 211 is movable structure.
Have a back up pad 221 in the electrolyzer 200, place the bottom in the internal layer 220, a container 230 is connected with on back up pad 221.This container 230 can be steel, wherein is loaded with above-mentioned electrolytic solution 241.
This container 230, wherein be provided with a well heater 250, a thermopair 260, an anode 242 and a negative electrode 243, both place this well heater 250 and thermopair 260 in the container 230 and immerse electrolytic solution 241, in order to heating electrolytic solution 241 wherein contained lithium atom is diffused in the cathode material, this thermopair 260 is the temperature in order to detecting electrolytic solution 241.
This anode 242 and negative electrode 243 are arranged in the container 230, and part is soaked and placed electrolytic solution 241.Negative electrode 243 supports with cathode branch support 244, and is equiped with alumina tube 245 below it, can be blown into dry gas 246.According to embodiments of the invention, the material of negative electrode 243 is an aluminium, and the material of anode 242 can be graphite rod, polymer composite or alloy.
When carrying out an electrolysis diffusion reaction, under working temperature, apply a direct current voltage, make lithium atoms metal contained in the electrolytic solution 241 deposition and diffuse in the aluminium of negative electrode 243, obtain aluminium-lithium (AlLi) compound.In the bath composition, LiCl provides Li the source, and KCl is mainly fusing assistant, uses the reduction electrolyte temperature, and increases electrolyte flow.The chemical reaction that produces in electrolytic solution 241 is as follows:
Anode: 2Cl
-→ Cl
2+ 2e
-
Negative electrode: Li
++ e
-→ Li
According to embodiments of the invention, the working temperature of electrolysis diffusion process (electrolysis diffusion temperature) is between 450～600 ℃.By the volts DS that applies 3V～10V, can be directly on negative electrode 243 direct lithium deposition atom, and under working temperature environment, these lithium atoms can diffuse in the cathode material, and form stable in properties and contain the high aluminum-lithium compound of lithium amount.According to embodiments of the invention, the composition of the aluminum-lithium compound of making can be between between the Al-2wt.%Li to Al-50wt.%Li.Because the affinity extreme difference of potassium and aluminium (cathode material), so after preparing aluminum-lithium compound according to the present invention, the potassium content of this compound is less than 50ppm.And sodium belongs to and is common impurity in the general chlorination salt.Through quantitative analysis, with the sodium content of the aluminum-lithium compound of the present invention preparation less than 30ppm.
Seeing also 3 (A) to shown in Fig. 3 (D), is to illustrate an aluminium to carry out the outward appearance of electrolysis diffusion process of the present invention front and back and the comparison diagram of X-light crystalline texture.Wherein, Fig. 3 (A) is the employed aluminium photo of the negative electrode figure of one embodiment of the invention, Fig. 3 (B) is the X-x-ray diffraction figure spectrogram of this aluminium of Fig. 3 (A), Fig. 3 (C) is the synoptic diagram that carries out the aluminum-lithium compound sheet material that forms after the electrolysis diffusion process, and Fig. 3 (D) is the X-x-ray diffraction figure spectrogram of this aluminum-lithium compound sheet material of Fig. 3 (C).X-x-ray diffraction collection of illustrative plates among more above-mentioned Fig. 3 (B) and Fig. 3 (C), the X-light crystalline texture that can observe both is obviously different, utilizes electrolysis diffusion process of the present invention can prepare stable in properties under atmospheric environment really and contains the high aluminum-lithium compound of lithium amount.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1. method that under atmospheric environment, prepares aluminum-lithium compound, it is characterized in that it is as cathode material with an aluminium, soak and place an electrolytic solution, composition part of this electrolytic solution comprises lithium chloride and Repone K, and under a working temperature, apply a direct current voltage to carry out an electrolysis diffusion reaction, lithium atom contained in the electrolytic solution is diffused in the aluminium of negative electrode, and obtain aluminum-lithium compound.
2. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 1 is characterized in that composition part of wherein said electrolytic solution comprises the lithium chloride of 20～45wt% and the Repone K of 30～60wt%.
3. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 1 and 2 is characterized in that wherein said working temperature is that the boundary is between about 450 ℃～about 600 ℃ of scopes.
4. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 1 and 2 is characterized in that wherein said volts DS is between 3V～10V.
5. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 3 is characterized in that wherein said volts DS is between 3V～10V.
6. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 1 and 2 is characterized in that the anode material of wherein said electrolysis diffusion reaction is to use graphite.
7. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 3 is characterized in that the anode material of wherein said electrolysis diffusion reaction is to use graphite.
8. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 5 is characterized in that the anode material of wherein said electrolysis diffusion reaction is to use graphite.
9. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 1 and 2 is characterized in that the composition of the wherein said aluminum-lithium compound of making can be between between the A1-2wt.%Li to Al-50wt.%Li.
10. the method for preparing aluminum-lithium compound under atmospheric environment according to claim 8 is characterized in that the composition of the wherein said aluminum-lithium compound of making can be between between the A1-2wt.%Li to Al-50wt.%Li.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100937334A CN101280434A (en) | 2007-04-05 | 2007-04-05 | Method for preparing aluminum-lithium compound in atmospheric environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100937334A CN101280434A (en) | 2007-04-05 | 2007-04-05 | Method for preparing aluminum-lithium compound in atmospheric environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101280434A true CN101280434A (en) | 2008-10-08 |
Family
ID=40013104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100937334A Pending CN101280434A (en) | 2007-04-05 | 2007-04-05 | Method for preparing aluminum-lithium compound in atmospheric environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101280434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194709A1 (en) * | 2013-06-05 | 2014-12-11 | 四川天齐锂业股份有限公司 | Lithium-aluminium alloy and production method and use thereof |
-
2007
- 2007-04-05 CN CNA2007100937334A patent/CN101280434A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194709A1 (en) * | 2013-06-05 | 2014-12-11 | 四川天齐锂业股份有限公司 | Lithium-aluminium alloy and production method and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Barnett et al. | Reduction of tantalum pentoxide using graphite and tin-oxide-based anodes via the FFC-Cambridge process | |
| CN107075705B (en) | It include the method and apparatus of the raw material of oxygen and the first metal for electroreduction | |
| Mandai et al. | Metallurgical approach to enhance the electrochemical activity of magnesium anodes for magnesium rechargeable batteries | |
| CN105925862A (en) | Mg alloy anode material and preparation method thereof | |
| CN101886197A (en) | Aluminum-lithium-samarium alloy and fused salt electrolysis preparation method thereof | |
| CN106967998B (en) | The method for preparing Al-Li master alloys as the nearly room temperature electro-deposition of raw material using lithia | |
| CN107151805A (en) | Foam rare earth-nickel alloys and preparation method thereof, purposes | |
| CN106947874A (en) | A kind of method that two-step method prepares high purity titanium | |
| Zhang et al. | Hydrogen generation from pure water using Al–Sn powders consolidated through high-pressure torsion | |
| He et al. | 3D-hosted lithium metal anodes | |
| CN102230194B (en) | Method for preparing nano-tungsten powder from calcium tungstate | |
| CN113832473B (en) | Molten salt electrochemical method for co-producing metal/carbon composite material and hydrogen | |
| Cox et al. | Mechanistic investigation into the electrolytic formation of iron from iron (III) oxide in molten sodium hydroxide | |
| Yang et al. | Cathodic potential dependence of electrochemical reduction of SiO 2 granules in molten CaCl 2 | |
| CN111705337B (en) | Method for preparing lead-calcium master alloy by molten salt galvanic cell method | |
| CN101280434A (en) | Method for preparing aluminum-lithium compound in atmospheric environment | |
| Guo et al. | Electrochemically Converting Liquid Cu2S‐Sb2S3 to Liquid Cu2Sb and Sulfur in Molten Salt at 730° C | |
| RU2692759C1 (en) | Lead-carbon metal composite material for electrodes of lead-acid batteries and a method for synthesis thereof | |
| CN109852847A (en) | Al-Ga-In-Sn-Cu alloy of hydrogen manufacturing and preparation method thereof, application in a fuel cell | |
| CN101358359A (en) | Method for directly preparing Mg-Zr alloy by MgCl2, K2ZrF6 and ZrO2 electrolysis | |
| CN109860560A (en) | Aluminium-air cell aluminium anodes electrode material and preparation method thereof | |
| CN102995065A (en) | Method for preparing metal titanium by taking ionic liquid as electrolyte and performing electro-deoxidization at room temperature | |
| Han et al. | Electrochemical codeposition of quaternary Mg-Li-Ce-La alloys from molten salt | |
| CN110010885A (en) | Aluminium-air cell anode material and preparation method thereof | |
| CN100523307C (en) | Furnace charging method for aluminum electrolytic bath |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081008 |