CN102268693A - Method for preparing rare-earth magnesium alloy - Google Patents
Method for preparing rare-earth magnesium alloy Download PDFInfo
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Abstract
The invention provides a method for preparing rare-earth magnesium alloy. In the method, a magnesium electrolytic cell is adopted and a mixture of a magnesium electrolytic molten salt system and a rare-earth chloride is used as an electrolytic molten salt, wherein the content of the rare-earth chloride in the electrolytic molten salt is 2wt%-15wt%; and the method comprises the following steps of: electrolyzing the electrolytic molten salt at a temperature of 650-720 DEG C, simultaneously, replenishing anhydrous magnesium chloride and rare-earth chloride with weight ratio of (1.5-11):1 to the magnesium electrolytic cell to form the rare-earth magnesium alloy on the upper part of the electrolytic molten salt. According to the invention, the direct preparation of rare-earth magnesium alloy in the traditional electrolytic magnesium factories is realized by regulating the weight ratio of the magnesium electrolytic molten salt system to the rare-earth chloride in the electrolytic molten salt and the proportion of the anhydrous magnesium chloride to the rare-earth chloride added in the electrolytic process; and simultaneously, the content of the rare earth in the prepared rare-earth magnesium alloy is less than 10%.
Description
Technical field
The present invention relates to the magnesium alloy field, particularly a kind of preparation method of magnesium-rare earth.
Background technology
Magnesium alloy is acknowledged as 2nd 1 century green engineering material, and magnesium alloy has in light weight, the specific tenacity height, and aboundresources, advantages such as good processability and recovery convenience are widely used in aerospace, automobile making and electronic product field.Traditional magnesium alloy 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 magnesium alloy 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.Prior art mainly adopts converts the method for mixing and fused salt electrolysis process prepares magnesium-rare earth.Wherein, convert the method for mixing and need produce magnesium metal and rare earth metal respectively, then that the two is at high temperature miscible, this kind method production technique is numerous and diverse, and power consumption is high, and because two kinds of melting point metals, density differ bigger, cause miscible inhomogeneously easily, the alloying constituent segregation influences quality product.
Fused salt electrolysis process preparation is to utilize the electric energy heating and be converted to chemical energy, carries 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.Fused salt electrolysis process prepares magnesium-rare earth and has characteristics simple to operate and that power consumption is lower.For example application number is the coelectrodeposition preparation method that the Chinese patent of 200510017209.X discloses a kind of magnesium-lanthanum-praseodymium-cerium master alloy, this method is in electrolytic furnace, with the plumbago crucible is anode, with the molybdenum is negative electrode, adding mass ratio in plumbago crucible is 5: (30～40): (55～65) are through magnesium chloride, the lanthanum praseodymium cerium rare earth chloride of dehydration, the Repone K ionogen of dehydration, at electrolysis temperature is 700 ℃～900 ℃, and cathode current density is 10A/cm
2Condition under prepare the magnesium-lanthanum-praseodymium-cerium master alloy.
Existing fused salt electrolysis process synthesizing rare-earth magnesium alloy technology has following two aspect shortcomings: at first, and need be at the change redesign electrolytic furnace or the electrolyzer 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 to carry out again melting so Zhi Bei magnesium-rare earth is follow-up in this way, to satisfy the requirement of device to content of rare earth.
Thus, the inventor considers directly to adopt existing electrolyzer, its technology is adjusted directly prepared content of rare earth and be no more than 10% magnesium-rare earth, cuts down the consumption of energy when simplifying the operation.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of magnesium-rare earth and preparation method thereof, and this method can directly utilize directly prepare the magnesium-rare earth that content of rare earth is no more than 10wt% existing one step of electrolyzer.
In view of this, the invention provides a kind of preparation method of magnesium-rare earth, comprising:
Adopt closing down magnesium electrolysis bath, mixture with magnesium eletrolysis molten salt system and rare earth chloride is the ionogen fused salt, the content of rare earth chloride is 2wt%～15wt% in the described ionogen fused salt, at 650 ℃～720 ℃ described ionogen fused salt is carried out electrolysis, add simultaneously weight ratio and be (1.5～11) in described closing down magnesium electrolysis bath: 1 Magnesium Chloride Anhydrous and rare earth chloride, magnesium-rare earth is formed at described ionogen fused salt top.
Preferably, described electrolytic cathode current density is 0.5A/cm
2～10A/cm
2
Preferably, described electrolytic anodic current density is 0.1A/cm
2～2A/cm
2
Preferably, the described weight ratio of adding Magnesium Chloride Anhydrous described in Magnesium Chloride Anhydrous and the rare earth chloride and rare earth chloride is (2～10): 1.
Preferably, described magnesium eletrolysis molten salt system is ternary magnesium eletrolysis molten salt system or quaternary magnesium eletrolysis molten salt system.
Preferably, described 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, described 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.
Preferably, the rare earth in the described rare earth chloride is single rare earth or mishmetal.
The invention provides a kind of preparation method of magnesium-rare earth, it is to adopt closing down magnesium electrolysis bath, mixture with magnesium eletrolysis molten salt system and rare earth chloride is that the ionogen fused salt carries out electrolysis, in described closing down magnesium electrolysis bath, add simultaneously the Magnesium Chloride Anhydrous and the rare earth chloride of certain weight ratio, form magnesium-rare earth thus on ionogen fused salt top.With respect to existing magnesium-rare earth synthetic method, the present invention directly adopts existing closing down magnesium electrolysis bath, weight ratio by magnesium eletrolysis molten salt system and rare earth chloride in the adjustment ionogen fused salt, realize that magnesium ion and rare earth ion energy common-battery position guarantees when separating out that the magnesium-rare earth of separating out floats on the interior molten salt system of electrolyzer, therefore do not need to redesign cell construction, can directly prepare magnesium-rare earth in existing electrolytic magnesium factory.Simultaneously, the invention also content of the ratio control magnesium-rare earth middle-weight rare earths by adjusting the Magnesium Chloride Anhydrous that adds in the electrolytic process and rare earth chloride is no more than 10%, need not aftertreatment and just can be applicable to produce.
Description of drawings
The alloy product scanning electron microscope that Fig. 1 makes for embodiment 1 can spectrogram.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, 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, comprising:
Adopt closing down magnesium electrolysis bath, mixture with magnesium eletrolysis molten salt system and rare earth chloride is the ionogen fused salt, the content of rare earth chloride is 2wt%～15wt% in the described ionogen fused salt, at 650 ℃～720 ℃ described ionogen fused salt is carried out electrolysis, add simultaneously weight ratio and be (1.5～11) in described closing down magnesium electrolysis bath: 1 Magnesium Chloride Anhydrous and rare earth chloride form magnesium-rare earth on described ionogen fused salt top.
The present invention directly adopts existing closing down magnesium electrolysis bath, the ionogen fused salt is formed and added fused salt and form and regulate, 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 production MAGNESIUM METAL, and it is to add the magnesium eletrolysis molten salt system in closing down magnesium electrolysis bath, and existing fused salt electrolysis magnesium is mainly the molten chloride system that contains magnesium chloride, as 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, magnesium 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, therefore the magnesium that generates floats on the magnesium eletrolysis molten salt system, collect after the electrolysis float on magnesium eletrolysis molten salt system surface MAGNESIUM METAL promptly.
The present invention at first considers directly to use existing closing down magnesium electrolysis bath to prepare magnesium-rare earth, saves the operation of redesign electrolyzer.But be to use existing closing down magnesium electrolysis bath to prepare magnesium-rare earth and need satisfy following two conditions:
The first, if magnesium 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 interior molten salt system of 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 weight ratio of magnesium eletrolysis molten salt system and rare earth chloride in the ionogen fused salt in the closing down magnesium electrolysis bath, the weight ratio of rare earth chloride is 2wt%～15wt% in the control ionogen fused salt, more preferably be controlled to be 2wt%～10wt%, the ionogen fused salt of this kind ratio can guarantee that on the one hand magnesium ion and rare earth rare earth common-battery position separate out, can also guarantee that on the other hand the ionogen fused salt has higher specific conductivity, lower fusing point, suitable viscosity, density and surface tension, the density that can also guarantee simultaneously 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 ratio by magnesium eletrolysis molten salt system and rare earth chloride in the control ionogen fused salt can realize guaranteeing when magnesium ion and rare earth ion can the common-battery position be separated out that the magnesium-rare earth of separating out floats on the molten salt system in the electrolyzer.Do not need to redesign new cell construction, can directly prepare magnesium-rare earth in existing electrolytic magnesium factory.
The Magnesium Chloride Anhydrous that the content of rare earth of the magnesium-rare earth that electrolysis goes out and electrolytic process are added is relevant with the ratio of rare earth chloride, for the content of rare earth of the magnesium-rare earth that guarantees to generate is no more than 10%, the present invention controls and add Magnesium Chloride Anhydrous and rare earth chloride weight ratio in the electrolytic process in closing down magnesium electrolysis bath, the control weight ratio is (1.5～11): 1, more preferably (2～10): 1.
In the electrolytic process, electrolysis temperature is made as 650 ℃～720 ℃.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 as 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.
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.
By such scheme as can be known, the present invention is by the weight ratio of magnesium eletrolysis molten salt system and rare earth chloride in the adjustment ionogen fused salt, realization magnesium ion and rare earth ion can be separated out the common-battery position, guarantee that simultaneously the magnesium-rare earth of separating out floats on the interior molten salt system of electrolyzer, therefore do not need to redesign cell construction, can directly prepare magnesium-rare earth in existing electrolytic magnesium factory.Simultaneously, the invention also content of the ratio control magnesium-rare earth middle-weight rare earths by adjusting the Magnesium Chloride Anhydrous that adds in the electrolytic process and rare earth chloride is no more than 10%, and then makes it directly just can be applicable to produce.
In order further to understand the present invention, below in conjunction with embodiment the preparation method of magnesium-rare earth provided by the invention is described, 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 as follows:
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 add the ionogen fused salt in closing down magnesium electrolysis bath after, the ionogen fused salt comprises the CaCl of 96wt%
2-KCl-NaCl-MgCl
2The LaCeCl of molten salt system and 4wt%
3, electrolysis temperature is 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 87: 13 anhydrous 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 104g, and the lanthanum cerium content is 4% in the alloy.Calculating current efficiency is 82%, magnesium direct yield 91%, and lanthanum cerium direct yield is 89%.
Be illustrated in figure 1 as the sem photograph that the present invention makes alloy product, as seen from the figure, this alloy product is the lanthanum cerium-magnesium alloy.
Carry out electrolysis add the ionogen fused salt in closing down magnesium electrolysis bath after, the ionogen fused salt comprises the KCl-NaCl-MgCl of 98wt%
2The LaCl of molten salt system and 2wt%
3, electrolysis temperature is 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 90: 10 anhydrous 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 97g, and La content is 2% in the alloy.Calculating current efficiency is 85%, and magnesium direct yield 93%, La direct yield are 86%.
Embodiment 3
Carry out electrolysis add the ionogen fused salt in closing down magnesium electrolysis bath after, the ionogen fused salt comprises the NaCl-KCl-MgCl of 95wt%
2The RYCl of molten salt system and 5wt%
3, electrolysis temperature is 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 85: 15 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 96g, and rich yttrium content is 5.9% in the alloy.Calculating current efficiency is 80%, and magnesium direct yield 94%, La direct yield are 88%.
Embodiment 4
Carry out electrolysis add the ionogen fused salt in closing down magnesium electrolysis bath after, the ionogen fused salt comprises the CaCl of 94wt%
2-NaCl-KCl-MgCl
2The CeCl of molten salt system and 6wt%
3, electrolysis temperature is 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 anhydrous 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 92g, and Ce content is 7% in the alloy.Calculating current efficiency is 78%, and magnesium direct yield 92%, Ce direct yield are 88%.
Embodiment 5
Carry out electrolysis add the ionogen fused salt in closing down magnesium electrolysis bath after, the ionogen fused salt comprises the NaCl-BaCl of 92wt%
2-KCl-MgCl
2The YCl of molten salt system and 8wt%
3, electrolysis temperature is controlled to be 705 ℃, 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 anhydrous 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 108g, and Y content is 8.5% in the alloy.Calculating current efficiency is 73%, and magnesium direct yield 93%, Y direct yield are 88%.
Carry out electrolysis add the ionogen fused salt in closing down magnesium electrolysis bath after, the ionogen fused salt comprises the CaCl of 90wt%
2-KCl-MgCl
2The GdCl of molten salt system and 10wt%
3, electrolysis temperature is controlled to be 720 ℃, 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 70: 30 anhydrous 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 116g, and Gd content is 10% in the alloy.Calculating current efficiency is 70%, and magnesium direct yield 95%, Gd direct yield are 88%.
By The above results adopt as can be known method provided by the invention can be directly in existing closing down magnesium electrolysis bath a step prepare content of rare earth and be no more than the 10wt% magnesium-rare earth, need not to design new electrolyzer again, preparation technology is simple, reduces production costs greatly.
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 herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, 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, comprise: adopt closing down magnesium electrolysis bath, mixture with magnesium eletrolysis molten salt system and rare earth chloride is the ionogen fused salt, the content of rare earth chloride is 2wt%～15wt% in the described ionogen fused salt, at 650 ℃～720 ℃ described ionogen fused salt is carried out electrolysis, add simultaneously weight ratio and be (1.5～11) in described closing down magnesium electrolysis bath: 1 Magnesium Chloride Anhydrous and rare earth chloride, magnesium-rare earth is formed at described ionogen fused salt top.
2. preparation method according to claim 1 is characterized in that, described electrolytic cathode current density is 0.5A/cm
2～10A/cm
2
3. preparation method according to claim 1 is characterized in that, described electrolytic anodic current density is 0.1A/cm
2～2A/cm
2
4. preparation method according to claim 1 is characterized in that, the described weight ratio of adding Magnesium Chloride Anhydrous described in Magnesium Chloride Anhydrous and the rare earth chloride and rare earth chloride is (2～10): 1.
5. preparation method according to claim 1 is characterized in that, described 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, described 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, described 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 described rare earth chloride is single rare earth or mishmetal.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424987A (en) * | 2011-12-19 | 2012-04-25 | 中国科学院长春应用化学研究所 | Preparation method for rare earth-magnesium alloy |
| CN102433572A (en) * | 2011-12-26 | 2012-05-02 | 江西理工大学 | Production process for preparing magnesium-gadolinium alloy by fused salt electrolysis method |
| CN103060852A (en) * | 2013-01-18 | 2013-04-24 | 哈尔滨工程大学 | Method for preparing Mg-Mn-La ternary alloy through molten salt electrolysis |
| CN113106275A (en) * | 2021-04-09 | 2021-07-13 | 河北大有镁业有限责任公司 | Continuous production method of high-quality multi-element rare earth magnesium alloy with controllable end point component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172507A (en) * | 1995-10-25 | 1998-02-04 | 三德金属工业株式会社 | Process for producing rare earth metals |
| CN101328593A (en) * | 2008-07-25 | 2008-12-24 | 洛阳双瑞万基钛业有限公司 | Ternary electrolyte molten salt magnesium electrolysis |
| CN101775627A (en) * | 2010-01-20 | 2010-07-14 | 中国科学院青海盐湖研究所 | Method for electrolytically preparing magnesium-rare earth by using hydrated magnesium chloride and rare earth chloride |
-
2011
- 2011-07-08 CN CN2011101914552A patent/CN102268693A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172507A (en) * | 1995-10-25 | 1998-02-04 | 三德金属工业株式会社 | Process for producing rare earth metals |
| CN101328593A (en) * | 2008-07-25 | 2008-12-24 | 洛阳双瑞万基钛业有限公司 | Ternary electrolyte molten salt magnesium electrolysis |
| CN101775627A (en) * | 2010-01-20 | 2010-07-14 | 中国科学院青海盐湖研究所 | Method for electrolytically preparing magnesium-rare earth by using hydrated magnesium chloride and rare earth chloride |
Non-Patent Citations (1)
| Title |
|---|
| 刘腾云等: "以不完全脱水氯化镁电解制备稀土镁合金的相关技术问题", 《盐湖研究》, vol. 16, no. 3, 15 September 2008 (2008-09-15) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424987A (en) * | 2011-12-19 | 2012-04-25 | 中国科学院长春应用化学研究所 | Preparation method for rare earth-magnesium alloy |
| CN102433572A (en) * | 2011-12-26 | 2012-05-02 | 江西理工大学 | Production process for preparing magnesium-gadolinium alloy by fused salt electrolysis method |
| CN103060852A (en) * | 2013-01-18 | 2013-04-24 | 哈尔滨工程大学 | Method for preparing Mg-Mn-La ternary alloy through molten salt electrolysis |
| CN103060852B (en) * | 2013-01-18 | 2015-02-25 | 哈尔滨工程大学 | Method for preparing Mg-Mn-La ternary alloy through molten salt electrolysis |
| CN113106275A (en) * | 2021-04-09 | 2021-07-13 | 河北大有镁业有限责任公司 | Continuous production method of high-quality multi-element rare earth magnesium alloy with controllable end point component |
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Application publication date: 20111207 |