CN102424987A - Preparation method for rare earth-magnesium alloy - Google Patents
Preparation method for rare earth-magnesium alloy Download PDFInfo
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- CN102424987A CN102424987A CN2011104270773A CN201110427077A CN102424987A CN 102424987 A CN102424987 A CN 102424987A CN 2011104270773 A CN2011104270773 A CN 2011104270773A CN 201110427077 A CN201110427077 A CN 201110427077A CN 102424987 A CN102424987 A CN 102424987A
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Abstract
The invention provides a preparation method for rare earth-magnesium alloy. The preparation method comprises the following steps: electrolyzing magnesium electrolyte molten salt at the temperature of 650-750DEG C by adopting a magnesium electrolytic cell; and meanwhile, supplementing 2-9 parts by weight of MgCl2.nH2O and 1 part by weight of rare earth chloride into the magnesium electrolytic cell, and forming rare earth-magnesium alloy on the upper part of the magnesium electrolyte molten salt, wherein n is 1 or 2. In the preparation method, the ratio of water-containing magnesium chloride to the rare earth chloride supplemented in the electrolysis process is regulated to realize the purpose of the co-potential precipitation of magnesium ion and rare earth ion, and meanwhile, the precipitated rare earth-magnesium alloy is guaranteed to float above a molten salt system in the electrolytic cell. Therefore, by adopting the method, the structure of the electrolytic cell does not need to be designed again. Meanwhile, the content of the rare earth in the product alloy does not exceed 10%, and the product alloy can be directly applied to production. When the method provided by the invention is used for preparing the rare earth magnesium alloy, the supplemented magnesium chloride does not need to be thoroughly dewatered, and energy consumption is lowered while the operation is simplified.
Description
Technical field
The present invention relates to the magnesiumalloy field, particularly a kind of preparation method of magnesium-rare earth.
Background technology
Magnesiumalloy is acknowledged as 21 century green engineering material, and magnesiumalloy has in light weight, and specific tenacity is high, aboundresources, and advantages such as good processability and recovery convenience are widely used in aerospace, automobile making and electronic product field.Traditional magnesiumalloy mainly contains magnalium and magnesium-manganese alloy etc., and thermotolerance, the erosion resistance of this type of alloy are relatively poor, have restricted its development.
With respect to traditional magnesiumalloy such as magnaliums, the thermotolerance erosion resistance and the scale resistance of magnesium-rare earth obviously improve, and have effectively expanded the Application of Magnesium scope.It mainly is to adopt the consolute method to make that traditional rare earth magnesium is closed, and it is to produce magnesium metal and rare earth metal respectively, and is then that the two is at high temperature miscible.Wherein, The magnesium metal is to be made by fused salt electrolysis process; But all contain crystal water in the magnesium salts mostly, facile hydrolysis produces a large amount of Natural manganese dioxide when using moisture magnesium salts to carry out electrolysis, produces a large amount of body refuses thus; Natural manganese dioxide can cause following harm to the electrolytic magnesium operation: 1) Mg is suspended in the ionogen, part magnesium integument MgO slag making; 2) passivation negative electrode disperses magnesium globule, increases secondary reaction; 3) on anode by chlorination, increase graphite consumption.In order to overcome above-mentioned defective, need magnesium salts be carried out thorough processed usually and make Magnesium Chloride Anhydrous.With MgCl
26H
2O is an example, though it can slough 4 crystal water molecules through simple dehydration procedure, but MgCl
2In remaining 2 crystal water molecules be very difficult to remove, dewatering process is harsh, and energy consumption is higher.
In order to address the above problem, prior art has the coelectrodeposition of employing method to prepare magnesium-rare earth, and it is to carry out electrolysis with the salt fusion of the salt of magnesium metal and rare earth and as ionogen, makes magnesium and rare earth prepare magnesium-rare earth at cathode codeposition.In the electrolytic magnesium process, add rare earth chloride and can eliminate the harm of MgO to magnesium eletrolysis, reduce the slag making in the electrolytic process, its reaction principle is following:
The magnesium chloride hydrolysis:
MgCl
2+H
2O＝MgO+2HCl
MgCl
2+H
2O＝Mg(OH)Cl+HCl
Mg(OH)Cl＝MgO+HCl
Natural manganese dioxide and oxychlorination magnesium transform:
MgO+RECl
3＝MgCl
2+REOCl
Mg(OH)Cl+RECl
3＝MgCl
2+REOCl+HCl
The oxychlorination rare earth changes into rare earth chloride on Graphite Electrodes:
REOCl+C+Cl
2＝RECl
3+CO
2REOCl+C+2Cl
2＝2RECl
3+CO
2
Though existing fused salt electrolysis process synthesizing rare-earth magnesiumalloy technology can use moisture magnesium salts to be raw material, but its following two aspect shortcomings: at first, need to design electrolytic furnace or electrolyzer again to the change of raw material and processing condition; Next magnesium-rare earth middle-weight rare earths content that is existing method is prepared surpasses 20% usually; And the alloy deposition of preparing is in the fused salt bottom; And the rare earth addition of using magnesium-rare earth in process of production is all lower; Generally be no more than 10%, also need carry out melting again so the magnesium-rare earth of preparation is follow-up in this way, to satisfy the requirement of device to content of rare earth.
Thus, it is raw material that the inventor considers with the hydrated magnesium chloride, directly adopts existing closing down magnesium electrolysis bath, its technology is adjusted directly prepared content of rare earth and be no more than 10% magnesium-rare earth, has both simplified dewatering process, again save energy.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of simple to operate, save energy and in closing down magnesium electrolysis bath, goes on foot with hydrated magnesium chloride raw material one prepares the preparation method that content of rare earth is no more than 10% magnesium-rare earth.
In view of this, the present invention provides a kind of preparation method of magnesium-rare earth, comprising: adopt closing down magnesium electrolysis bath, at 650 ℃～750 ℃ magnesium eletrolysis matter fused salt is carried out electrolysis, in said closing down magnesium electrolysis bath, add weight ratio simultaneously and be (2～9): 1 MgCl
2NH
2O and rare earth chloride, magnesium-rare earth is formed at said magnesium eletrolysis matter fused salt top; Said n is 1 or 2.
Preferably, said electrolytic cathode current density is 0.5A/cm
2～10A/cm
2
Preferably, said electrolytic anodic current density is 0.1A/cm
2～2A/cm
2
Preferably, the said MgCl that adds
2NH
2MgCl described in O and the rare earth chloride
2NH
2The weight ratio of O and rare earth chloride is (2.5～8): 1.
Preferably, said magnesium eletrolysis molten salt system is ternary magnesium eletrolysis molten salt system or quaternary magnesium eletrolysis molten salt system.
Preferably, said ternary magnesium eletrolysis molten salt system is KCl-NaCl-MgCl
2Molten salt system, NaCl-KCl-MgCl
2Molten salt system or CaCl
2-KCl-MgCl
2Molten salt system.
Preferably, said quaternary magnesium eletrolysis molten salt system is CaCl
2-KCl-NaCl-MgCl
2Molten salt system CaCl
2-NaCl-KCl-MgCl
2Molten salt system or NaCl-B aCl
2-KCl-MgCl
2Molten salt system.
Preferably, the rare earth in the said rare earth chloride is single rare earth or mishmetal.
The present invention provides a kind of preparation method of magnesium-rare earth; This method is to be equipped with magnesium-rare earth with the coelectrodeposition legal system; Add hydrated magnesium chloride and rare earth chloride in the electrolytic process; The hydrated magnesium chloride that adds in the electrolytic process through adjustment and the ratio of rare earth chloride realize that on the one hand mg ion and rare earth ion can separate out the common-battery position, and the magnesium-rare earth that assurance is simultaneously separated out floats on the interior molten salt system of electrolyzer.Therefore, adopt this method not need to design again cell construction, can directly prepare magnesium-rare earth in existing electrolytic magnesium factory; On the other hand through the content of control magnesium-rare earth middle-weight rare earths, the content that makes product alloy middle-weight rare earths is through being no more than 10%, and then makes it directly just can be applicable to produce.Therefore, adopt method provided by the invention to prepare magnesium-rare earth and need not the magnesium chloride of adding is thoroughly dewatered, cut down the consumption of energy save energy when simplifying the operation.And adopt this method a step to prepare out content of rare earth and be no more than 10% magnesium-rare earth, make it directly be used for producing.
Description of drawings
Fig. 1 makes the SEM figure of alloy product for the embodiment of the invention 2;
Fig. 2 makes the EDS figure of alloy product for the embodiment of the invention 2.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, describe just to further specifying feature and advantage of the present invention but should be appreciated that these, rather than to the restriction of claim of the present invention.
The embodiment of the invention discloses a kind of preparation method of magnesium-rare earth, it is to adopt closing down magnesium electrolysis bath, at 650 ℃～750 ℃ magnesium eletrolysis matter fused salt is carried out electrolysis, in said closing down magnesium electrolysis bath, adds weight ratio simultaneously and is (2～10): 1 MgCl
2NH
2O and rare earth chloride, magnesium-rare earth is formed at said magnesium eletrolysis matter fused salt top; Said n is 1 or 2.
The present invention directly adopts existing closing down magnesium electrolysis bath, in electrolytic process, adds a certain proportion of hydrated magnesium chloride and rare earth chloride, and then step preparation content of rare earth is no more than the magnesium-rare earth of 10wt%.
Electrolytic method magnesium smelting is one of main method of producing MAGNESIUM METAL 99, and it is in closing down magnesium electrolysis bath, to add the magnesium eletrolysis molten salt system to carry out electrolysis.Existing fused salt electrolysis magnesium is mainly the molten chloride system that contains magnesium chloride, like NaCl-KCl-MgCl
2Molten salt system, CaCl
2-KCl-MgCl
2Ternary molten salt systems such as molten salt system, or CaCl
2-KCl-NaCl-MgCl
2Quaternary molten salt systems such as molten salt body; Magnesium chloride is added in electrolysis simultaneously again in electrolyzer; Mg ion is reduced formation magnesium at negative electrode; Because the magnesium density that generates is less than the density of magnesium eletrolysis molten salt system, the magnesium that therefore generates floats on the magnesium eletrolysis molten salt system, collects the MAGNESIUM METAL 99 that floats on magnesium eletrolysis molten salt system surface after the electrolysis and promptly gets.
The present invention at first considers directly to use existing closing down magnesium electrolysis bath to prepare magnesium-rare earth, saves the operation that designs electrolyzer again.But be to use existing closing down magnesium electrolysis bath to prepare magnesium-rare earth and need satisfy following two conditions:
The first, if mg ion and rare earth ion can be separated out the common-battery position;
The second, guarantee that the magnesium-rare earth of separating out floats on the molten salt system in the electrolyzer.
The principle of electrolytic preparation magnesium-rare earth is that following reaction takes place on electrode:
Negative electrode: RE
3++ 3e → RE Mg
2++ 2e → Mg;
Anode: 2Cl
--2e → Cl
2
The standard deposition potential of RE is-3.37V that the standard deposition potential of Mg is-2.34V.For the deposition potential of balance rare earth and magnesium, two kinds of ions can be separated out jointly, need reduce Mg
2+Ion(ic)activity, its current potential is moved to negative direction, rare earth ion activity is increased; Its current potential is moved to positive dirction; Thereby on negative electrode, make two kinds of ionic deposition potentials approaching, produce eutectoid and go out reaction, realize that thus a step prepares magnesium-rare earth.
For this reason, the present invention controls the hydrated magnesium chloride added in the electrolytic process and the ratio of rare earth chloride, controls the two ratio and is (2～9): 1, be preferably (2.5～8): 1.The ionogen fused salt of adding this kind ratio can guarantee that on the one hand mg ion and rare earth rare earth common-battery position separate out; The content that can also guarantee the alloy middle-weight rare earths that electrolysis goes out on the other hand is no more than 10%; And the density that makes the ionogen fused salt is higher than the density that content of rare earth is no more than 10% magnesium-rare earth; The magnesium-rare earth come-up that helps generating meets the requirement of existing closing down magnesium electrolysis bath production technique.
Therefore; The hydrated magnesium chloride of adding in the electrolytic process through control and the ratio of rare earth chloride can realize mg ion and rare earth ion can the common-battery position separate out in the assurance magnesium-rare earth of separating out float on the molten salt system in the electrolyzer, and one goes on foot and prepares content of rare earth and be no more than 10% alloy.Do not need to design again new cell construction, can directly prepare magnesium-rare earth in existing electrolytic magnesium factory.
Add the hydrated magnesium chloride that adds in the process and can be a hydrated magnesium chloride or two hydrated magnesium chlorides, the number of crystal water is no more than 2 in the molecule, and it can promptly be got through simple dewatering process by the magnesium chloride hexahydrate that salt lake brine extracts the surplus behind the potassium.Technology is simple, and is little to the corrosion on Equipment degree.
In the electrolytic process, electrolysis temperature is made as 650 ℃～750 ℃.In order to improve electrolytic efficiency, cathode current density preferably is made as 0.5A/cm
2～10A/cm
2, anodic current density preferably is made as 0.1A/cm
2～2A/cm
2
The magnesium eletrolysis molten salt system that adopts among the present invention can be the magnesium eletrolysis molten salt system that adopts in the existing electrolytic method magnesium smelting production technique; Concrete like ternary magnesium eletrolysis molten salt system or quaternary magnesium eletrolysis molten salt system, ternary magnesium eletrolysis molten salt system is preferably KCl-NaCl-MgCl
2Molten salt system, NaCl-KCl-MgCl
2Molten salt system, CaCl
2-KCl-MgCl
2Molten salt system; Quaternary magnesium eletrolysis molten salt system is preferably CaCl
2-KCl-NaCl-MgCl
2Molten salt system, CaCl
2-NaCl-KCl-MgCl
2Molten salt system or NaCl-BaCl
2-KCl-MgCl
2Molten salt system.More preferably adopting weight ratio is (4～4.5): (2.5～3.5): 1 KCl-NaCl-MgCl
2Molten salt system, weight ratio are (0.4～0.5): (4～4.5): (3～3.5): 1 CaCl
2-KCl-NaCl-MgCl
2Molten salt system, weight ratio are (4.5～5.5): (1.5～2.5): 1 NaCl-KCl-MgCl
2Molten salt system, weight ratio are (0.8～1.2): (4～5): (2.5～3.5): 1 CaCl
2-NaCl-KCl-MgCl
2(3～4) that molten salt system, weight ratio are: (1～1.5): (0.5～0.8): 1 NaCl-BaCl
2-KCl-MgCl
2(1.8～2.5) that molten salt system or weight ratio are: (3.5～4.5): 1 CaCl
2-KCl-MgCl
2Molten salt system.Most preferably adopting weight ratio is (0.4～0.5): (4～4.5): (3～3.5): 1 CaCl
2-KCl-NaCl-MgCl
2Molten salt system.
Rare earth in the rare earth chloride in the ionogen fused salt can be single rare earth or mishmetal; Single rare earth concrete as: lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium m), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc) or yttrium (Y), be preferably lanthanum, cerium, gadolinium or yttrium; Mishmetal is preferably mixed rare earth of lanthanum and cerium, lpc rare-earth mixture or rich yttrium mixed heavy rare earth.
Can know by such scheme; The present invention is equipped with magnesium-rare earth with the coelectrodeposition legal system; Add hydrated magnesium chloride and magnesium-rare earth in the electrolytic process, the ratio through the hydrated magnesium chloride that adds in the adjustment electrolytic process and rare earth chloride realizes that on the one hand mg ion and rare earth ion can separate out the common-battery position, and the magnesium-rare earth that assurance is simultaneously separated out floats on the interior molten salt system of electrolyzer; Therefore do not need to design again cell construction, can directly prepare magnesium-rare earth in existing electrolytic magnesium factory; Control the content of magnesium-rare earth middle-weight rare earths on the other hand, the content that makes product alloy middle-weight rare earths is through being no more than 10%, and then makes it directly just can be applicable to produce.Therefore, adopt method provided by the invention to prepare magnesium-rare earth and need not the magnesium chloride of adding is thoroughly dewatered, reduce the corrosion on Equipment degree when simplifying the operation.And adopt this method a step to prepare out content of rare earth and be no more than 10% magnesium-rare earth, make it directly be used for producing.
In order further to understand the present invention, the preparation method of magnesium-rare earth provided by the invention is described below in conjunction with embodiment.Protection scope of the present invention is not limited by the following examples.
In following examples in the magnesium eletrolysis molten salt system each components by weight following:
CaCl
2-KCl-NaCl-MgCl
2Molten salt system: 5: 45: 35: 11
KCl-NaCl-MgCl
2Molten salt system: 50: 36: 12
NaCl-KCl-MgCl
2Molten salt system: 60: 23: 12
CaCl
2-NaCl-KCl-MgCl
2Molten salt system: 10: 44: 30: 10
NaCl-BaCl
2-KCl-MgCl
2Molten salt system: 50: 18: 10: 14
CaCl
2-KCl-MgCl
2Molten salt system: 25: 53: 12
Embodiment 1
Carry out electrolysis after in closing down magnesium electrolysis bath, adding the ionogen fused salt, the ionogen fused salt is KCl-NaCl-MgCl
2System, electrolysis temperature are controlled to be 650 ℃, and cathode current density is 0.5A/cm
2, anodic current density is 0.1A/cm
2, in closing down magnesium electrolysis bath, add weight proportion in the electrolytic process and be 89: 11 moisture MgCl
2And LaCl
3, forming magnesium-rare earth on ionogen fused salt surface, electrolysis finishes reaction after 2 hours.
Record after the reaction: alloy output is 92g, and La content is 2.5% in the alloy.Calculating current efficiency is 85%, and magnesium direct yield 94%, La direct yield are 87%.
Carry out electrolysis after in closing down magnesium electrolysis bath, adding the ionogen fused salt, the ionogen fused salt is CaCl
2-KCl-NaCl-MgCl
2System, electrolysis temperature are controlled to be 670 ℃, and cathode current density is 1A/cm
2, anodic current density is 0.2A/cm
2, in closing down magnesium electrolysis bath, add weight proportion in the electrolytic process and be 86: 14 moisture MgCl
2And LaCeCl
3, forming magnesium-rare earth on ionogen fused salt surface, electrolysis finishes reaction after 2 hours.
Record after the reaction: alloy output is 101g, and the lanthanum cerium content is 3.5% in the alloy.Calculating current efficiency is 81%, magnesium direct yield 90%, and lanthanum cerium direct yield is 88%.
Be illustrated in figure 1 as the SEM figure that present embodiment makes alloy product, Fig. 2 is the EDS figure of alloy product.Can know that by Fig. 1 and Fig. 2 this alloy product is the lanthanum cerium-magnesium alloy.
Embodiment 3
Carry out electrolysis, the NaCl-KCl-MgCl that the ionogen fused salt is after in closing down magnesium electrolysis bath, adding the ionogen fused salt
2System, electrolysis temperature are controlled to be 690 ℃, and cathode current density is 2A/cm
2, anodic current density is 0.4A/cm
2, in closing down magnesium electrolysis bath, add weight proportion in the electrolytic process and be 83: 17 moisture MgCl
2And RYCl
3Form magnesium-rare earth on ionogen fused salt surface, electrolysis finishes reaction after 2 hours.
Record after the reaction: alloy output is 92g, and rich yttrium content is 5.7% in the alloy.Calculating current efficiency is 81%, and magnesium direct yield 95%, La direct yield are 87%.
Carry out electrolysis after in closing down magnesium electrolysis bath, adding the ionogen fused salt, the ionogen fused salt is CaCl
2-NaCl-KCl-MgCl
2System, electrolysis temperature are controlled to be 700 ℃, and cathode current density is 4A/cm
2, anodic current density is 0.8A/cm
2, in closing down magnesium electrolysis bath, add weight proportion in the electrolytic process and be 80: 20 moisture MgCl
2And CeCl
3Form magnesium-rare earth on ionogen fused salt surface, electrolysis finishes reaction after 2 hours.
Record after the reaction: alloy output is 93g, and Ce content is 7.2% in the alloy.Calculating current efficiency is 77%, and magnesium direct yield 91%, Ce direct yield are 86%.
Embodiment 5
Carry out electrolysis after in closing down magnesium electrolysis bath, adding the ionogen fused salt, the ionogen fused salt is CaCl
2-KCl-MgCl
2System, electrolysis temperature are controlled to be 720 ℃, and cathode current density is 8A/cm
2, anodic current density is 1.6A/cm
2, in closing down magnesium electrolysis bath, add weight proportion in the electrolytic process and be 75: 25 moisture MgCl
2And GdCl
3Form magnesium-rare earth on ionogen fused salt surface, electrolysis finishes reaction after 2 hours.
Record after the reaction: alloy output is 106g, and Gd content is 8.3% in the alloy.Calculating current efficiency is 73%, and magnesium direct yield 94%, Gd direct yield are 85%.
Carry out electrolysis after in closing down magnesium electrolysis bath, adding the ionogen fused salt, the ionogen fused salt is NaCl-BaCl
2-KCl-MgCl
2System, electrolysis temperature are controlled to be 750 ℃, and cathode current density is 10A/cm
2, anodic current density is 2A/cm
2, in closing down magnesium electrolysis bath, add weight proportion in the electrolytic process and be 67: 33 moisture MgCl
2And YCl
3Form magnesium-rare earth on ionogen fused salt surface, electrolysis finishes reaction after 2 hours.
Record after the reaction: alloy output is 118g, and Y content is 9.8% in the alloy.Calculating current efficiency is 75%, and magnesium direct yield 92%, Y direct yield are 90%.
Can know by The above results; The present invention prepares the method for the magnesium-rare earth that floats and has not only avoided removing the magnesium chloride difficult problem of latter two crystal water; And added rare earth chloride, and both eliminated the harm of MgO to the magnesium eletrolysis process, can prepare the magnesium-rare earth product of high added value again; Its method can be promoted on existing closing down magnesium electrolysis bath, helps improving the salt lake resources comprehensive utilization ratio.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. the preparation method of a magnesium-rare earth comprises: adopt closing down magnesium electrolysis bath, at 650 ℃～750 ℃ magnesium eletrolysis matter fused salt is carried out electrolysis, in said closing down magnesium electrolysis bath, add weight ratio simultaneously and be (2～9): 1 MgCl
2NH
2O and rare earth chloride, magnesium-rare earth is formed at said magnesium eletrolysis matter fused salt top; Said n is 1 or 2.
2. preparation method according to claim 1 is characterized in that, said electrolytic cathode current density is 0.5A/cm
2～10A/cm
2
3. preparation method according to claim 1 is characterized in that, said electrolytic anodic current density is 0.1A/cm
2～2A/cm
2
4. preparation method according to claim 1 is characterized in that, the said MgCl that adds
2NH
2MgCl described in O and the rare earth chloride
2NH
2The weight ratio of O and rare earth chloride is (2.5～8): 1.
5. preparation method according to claim 1 is characterized in that, said magnesium eletrolysis molten salt system is ternary magnesium eletrolysis molten salt system or quaternary magnesium eletrolysis molten salt system.
6. preparation method according to claim 5 is characterized in that, said ternary magnesium eletrolysis molten salt system is KCl-NaCl-MgCl
2Molten salt system, NaCl-KCl-MgCl
2Molten salt system or CaCl
2-KCl-MgCl
2Molten salt system.
7. preparation method according to claim 5 is characterized in that, said quaternary magnesium eletrolysis molten salt system is CaCl
2-KCl-NaCl-MgCl
2Molten salt system CaCl
2-NaCl-KCl-MgCl
2Molten salt system or NaCl-BaCl
2-KCl-MgCl
2Molten salt system.
8. preparation method according to claim 1 is characterized in that, the rare earth in the said rare earth chloride is single rare earth or mishmetal.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556023A (en) * | 2013-11-14 | 2014-02-05 | 扬州宏福铝业有限公司 | Lanthanum cerium-magnesium intermediate alloy and production method thereof |
| CN103590073A (en) * | 2013-11-14 | 2014-02-19 | 扬州宏福铝业有限公司 | Method for preparing mixed intermediate alloy of magnesium and light rare earth with double-cathode method |
| WO2014194745A1 (en) * | 2013-06-04 | 2014-12-11 | 中国科学院过程工程研究所 | Method for preparing magnesium alloy by electrolysis using magnesium chloride hydrate as raw material |
| CN104894603A (en) * | 2014-03-05 | 2015-09-09 | 中国科学院青海盐湖研究所 | Method for preparing magnesium-lead alloy through electrolysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280437A (en) * | 2007-12-27 | 2008-10-08 | 中国科学院长春应用化学研究所 | Preparation of magnesium-lanthanum-praseodymium-cerium intermediate alloy |
| CN102268693A (en) * | 2011-07-08 | 2011-12-07 | 中国科学院长春应用化学研究所 | Method for preparing rare-earth magnesium alloy |
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2011
- 2011-12-19 CN CN2011104270773A patent/CN102424987A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280437A (en) * | 2007-12-27 | 2008-10-08 | 中国科学院长春应用化学研究所 | Preparation of magnesium-lanthanum-praseodymium-cerium intermediate alloy |
| CN102268693A (en) * | 2011-07-08 | 2011-12-07 | 中国科学院长春应用化学研究所 | Method for preparing rare-earth magnesium alloy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194745A1 (en) * | 2013-06-04 | 2014-12-11 | 中国科学院过程工程研究所 | Method for preparing magnesium alloy by electrolysis using magnesium chloride hydrate as raw material |
| CN103556023A (en) * | 2013-11-14 | 2014-02-05 | 扬州宏福铝业有限公司 | Lanthanum cerium-magnesium intermediate alloy and production method thereof |
| CN103590073A (en) * | 2013-11-14 | 2014-02-19 | 扬州宏福铝业有限公司 | Method for preparing mixed intermediate alloy of magnesium and light rare earth with double-cathode method |
| CN104894603A (en) * | 2014-03-05 | 2015-09-09 | 中国科学院青海盐湖研究所 | Method for preparing magnesium-lead alloy through electrolysis |
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Application publication date: 20120425 |