CN106894056B - A kind of method of high-purity La, Ce mischmetal of electrolytic preparation - Google Patents
A kind of method of high-purity La, Ce mischmetal of electrolytic preparation Download PDFInfo
- Publication number
- CN106894056B CN106894056B CN201510964913.XA CN201510964913A CN106894056B CN 106894056 B CN106894056 B CN 106894056B CN 201510964913 A CN201510964913 A CN 201510964913A CN 106894056 B CN106894056 B CN 106894056B
- Authority
- CN
- China
- Prior art keywords
- rare earth
- purity
- earth metal
- mischmetal
- electrolyte
- 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.)
- Active
Links
- 229910052684 Cerium Inorganic materials 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 40
- 229910052746 lanthanum Inorganic materials 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 229910001122 Mischmetal Inorganic materials 0.000 title claims abstract description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 96
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 94
- 239000003792 electrolyte Substances 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000005498 polishing Methods 0.000 claims abstract description 13
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 10
- 238000005422 blasting Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000002932 luster Substances 0.000 claims abstract description 6
- 230000008021 deposition Effects 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- WMOHXRDWCVHXGS-UHFFFAOYSA-N [La].[Ce] Chemical compound [La].[Ce] WMOHXRDWCVHXGS-UHFFFAOYSA-N 0.000 claims description 2
- ONLCZUHLGCEKRZ-UHFFFAOYSA-N cerium(3+) lanthanum(3+) oxygen(2-) Chemical compound [O--].[O--].[O--].[La+3].[Ce+3] ONLCZUHLGCEKRZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims description 2
- -1 rare earth fluoride Chemical class 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- AAINJZRFCSHHJI-UHFFFAOYSA-H trifluorocerium trifluorolanthanum Chemical compound F[La](F)(F)[Ce](F)(F)F AAINJZRFCSHHJI-UHFFFAOYSA-H 0.000 claims 1
- 238000005204 segregation Methods 0.000 abstract description 5
- 238000005275 alloying Methods 0.000 abstract description 4
- 238000005868 electrolysis reaction Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 108010041986 DNA Vaccines Proteins 0.000 description 4
- 229940021995 DNA vaccine Drugs 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010068052 Mosaicism Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- BYMUNNMMXKDFEZ-UHFFFAOYSA-K trifluorolanthanum Chemical compound F[La](F)F BYMUNNMMXKDFEZ-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention belongs to rare earth preparation field, the method for specially a kind of high-purity La, Ce mischmetal of electrolytic preparation.The method of high-purity La, Ce mixing pure rare earth of electrolytic preparation is mainly electrolysed by electrolytic cell, and rare earth metal is precipitated in cathode deposition after electrolysis, and then rare earth metal that surface is covered with to electrolyte is positioned in air；After its cooling and demolding, fine Shot Blasting is carried out, so as to eliminate surface oxide layer to greatest extent, rare earth metal surface exposes metallic luster；Rare earth metal after polishing need to carry out vacuum packaging processing, to prevent its surface from aoxidizing, so as to influence its purity.Easy to operate, rare earth high purity of the invention, and it is simple for process, and securely and reliably, obtained alloying component is uniform, reduces segregation.
Description
Technical field
The invention belongs to rare earth preparation field, the method for specially a kind of high-purity La, Ce mischmetal of electrolytic preparation.
Background technology
Oxygen is the harmful element in steel, and high oxygen content can cause to occur more bulk oxide in material to be mingled with, from
And the continuity of steel matrix is destroyed, it results even in material and serious brittle fracture occurs.Have when smelting molten steel to oxygen content bright
True requirement, it is desirable that oxygen content is generally in 20ppm hereinafter, high-end product requirement oxygen content is less than below 10ppm.For in steel-making
For needing pure rare earth to be added, require its own that secondary oxidation cannot occur with high degree of purity before adding in molten steel,
Otherwise rare earth will be added in the form of rare earth oxide in molten steel, so that molten steel can be polluted, do not have due cleaning molten steel,
The effects that rotten field trash and crystal grain thinning.It is typically only capable to choose relatively low high-purity dilute of oxygen content prepared using specific process
Soil can lead to the increase of manufacturing cost, while the competitiveness of product in market can also substantially reduce in this way.
In recent years, with the development of science and technology, in terms of high pure rare earth metals are prepared, developed many technology and methods,
According to the difference of impurity in the difference of each single rare earth metalline and raw material, the five kinds of Purification of Rare Earth Metals of having grown up
Method：Vacuum remelting, distillation/distillation, zone refining, Solid State Electrotransport and electrorefining, zone refining and Solid State Electrotransport are only
The magazine " redistribution " for making to be purified in metal, can not from be purified in metal " removal " and " purifying ", though these methods
Can so achieve the purpose that purify rare earth metal, but due to the difference of application field, often only Si in Purification of Rare Earth Metals,
The impurity alloying element such as Ca, Al, Mg.For the rare earth for being applied to field of steel-making, the method that does not need to spend high cost
And the impurity such as Si, Ca, Al, Mg are removed, because these elements can be as strong deoxidier, in addition, utilizing these in steel
Method prepares high-purity rare-earth total oxygen content in more than 300ppm.It to be gone in conclusion there is an urgent need to a kind of simple and practical
Except the complete preparation method of oxygen content in rare earth metal.
Invention content
The purpose of the present invention is to provide a kind of methods of high-purity La, Ce mischmetal of electrolytic preparation, effectively prepare hypoxemia
High pure rare earth metals, improve the degree of purity of alloy, the total oxygen content in steel alloy reduced, so as to reduce the folder in rare earth metal
Sundries will not generate it pollution, and then solve pure sex chromosome mosaicism in steel after adding in molten steel.
The technical scheme is that：
A kind of method of high-purity La, Ce mischmetal of electrolytic preparation, by weight percentage, in La, Ce mischmetal, La
Ranging from the 60~70% of ranging from 30~35%, the Ce elements of element, this method includes the following steps：
(1) it is electrolysed using electrolytic cell, is passed through direct current, control cathode-current density is 3~9A/cm2, anode current
Density is 1~3A/cm2, slot pressure is 6~11V, is electrolysed, and electrolyte is the oxide rare earth and rare earth fluoride of mixing, is powered
Later, pure La, Ce rare earth metal is precipitated in cathode deposition；
(2) rare earth metal is come out of the stove using canister, surface is completely covered with electrolyte, tapping temperature for 1000~
1200 DEG C, canister preheats 200~400 DEG C, and rare earth stirs evenly when coming out of the stove, to prevent causing segregation；
(3) it after the electrolyte of rare earth metal surface covering is fully cured, is dipped in cooling circulating water, water temperature is
25~50 DEG C, after 1~3min of circulating water, rare earth metal is taken out in the complete cooled and solidified of rare earth metal, demoulding；
(4) rare earth metal is put into fine shot-blasting machine and is polished, and polishing time is 10~20min, fully handles rare earth
Oxidation on metal surface layer makes it expose metallic luster；
(5) since rare earth metal is extremely active, it is aoxidized in order to prevent, and the high pure rare earth metals after polishing are carried out
Vacuum packaging handle, packed weight be 0.5~1.5 kilogram/block, convenient for subsequently being added into molten steel, be finally reached prepare it is high-purity
The purpose of La, Ce mixing pure rare earth, the purity of rare earth reach total oxygen content less than 80ppm, complete to prepare.
The method of high-purity La, Ce mischmetal of the electrolytic preparation, electrolyte are the cerium lanthanum oxide and lanthanum fluoride of mixing
Cerium, and lanthanum cerium weight ratio is 1 ︰ 2.
The method of high-purity La, Ce mischmetal of the electrolytic preparation, canister are the back taper with 2~10 ° of tapers
Shape inner wall, in order to the demoulding of rare earth metal, and surface electrolyte thickness is 1~3mm, rare earth metal to be effectively prevent to come out of the stove
It aoxidizes in the process.
The method of high-purity La, Ce mischmetal of the electrolytic preparation, when shot-blasting machine is polished, the granularity of stainless steel pellet
In 0.5~3mm, application pressure is 100~300MPa, reaches and was not damaged while eliminating rare earth metal surface oxide layer purpose
More rare earth metals.
Rare earth metal after polishing is carried out Vacuum Package by the method for high-purity La, Ce mischmetal of the electrolytic preparation
When, using the vacuum packaging bag of 0.5~2mm, vacuum degree is 5~20Pa.
The method of high-purity La, Ce mischmetal of the electrolytic preparation after preparing high-purity La, Ce mixing pure rare earth, carries out
Gas oxygen content is examined in sampling.
The invention has the advantages that and advantageous effect：
1. present invention process reasonable design is a kind of method of the removal rare earth metal oxygen content of highly effective, main logical
Suitable rare earth metal is crossed to come out of the stove a series of technologies such as mode, rational release method, appropriate follow-up shot-blasting machine vacuum processing
Measure, the oxygen content that can be effectively removed in rare earth metal, to be promoted inside the steel-casting of production and the big strand of steel
Quality provides a kind of simple and practical method for preparing high-purity rare-earth.
2. the method for high-purity La, Ce mixing pure rare earth of electrolytic preparation of the present invention, can be by final rare earth metal
In Control for Oxygen Content within 80ppm, DNA vaccine reaches more than 73%, for development prepare high-purity rare-earth provide it is a kind of simple
And efficient method.
3. the method for high-purity La, Ce mixing pure rare earth of electrolytic preparation of the present invention, technological design is reasonable, flow letter
Single, safe, operability is strong, and industry is easy to implement.
4. the use of high-purity La, Ce mixing pure rare earth of electrolytic preparation of the present invention can play refining, desulfurization, neutralize low melting point
The effect of objectionable impurities, and the processing performance of steel can be improved, the physical and chemical performance of alloy can be improved, and improve alloy room
Temperature and high-temperature mechanical property.
Specific embodiment
In specific implementation process, the method for high-purity La, Ce mixing pure rare earth of electrolytic preparation of the present invention mainly passes through electricity
Solution slot is electrolysed, and rare earth metal is precipitated in cathode deposition after electrolysis, and then rare earth metal that surface is covered with to electrolyte is placed
In air；After its cooling and demolding, fine Shot Blasting is carried out, so as to eliminate surface oxide layer, rare earth to greatest extent
Expose metallic luster in metal surface；Rare earth metal after polishing need to carry out vacuum packaging processing, to prevent its surface from aoxidizing,
So as to influence its purity.High-purity La, Ce mischmetal of electrolytic preparation of the present invention, by weight percentage, the weight hundred of La elements
Divide ratio ranging from 30~35%, the weight percentage ranges of Ce elements are 60~70%, and the weight ratio of La and Ce is about
1 ︰ 2.This method is easy to operate, rare earth high purity, and simple for process, and securely and reliably, obtained alloying component is uniform, reduces
Segregation.
The present invention is described in further detail below by embodiment.
Embodiment 1
Prepared high-purity La, Ce mischmetal of experiment is 50kg.Traditional electrolyte prepares the chemical composition of high-purity rare-earth such as
Shown in table 1.Electrolyte is put into electrolytic cell, high-purity La, Ce mischmetal is precipitated in cathode after the fusing that is powered, and is fallen using inner wall for 8 °
The canister of taper comes out of the stove rare earth metal, and surface is completely covered with electrolyte, and tapping temperature is 1200 DEG C, canister
200 DEG C of preheating, rare earth stirs evenly before coming out of the stove, to prevent causing segregation；Treat that the electrolyte of rare earth metal surface covering is fully cured
Afterwards, it is dipped in cooling circulating water, water temperature is 25 DEG C, and after circulating water 1min, the complete cooled and solidified of rare earth metal takes off
Mould takes out rare earth metal；Rare earth metal is put into fine shot-blasting machine and is polished, and polishing time 10min fully handles rare earth
Oxidation on metal surface layer makes it expose metallic luster；High pure rare earth metals after polishing are subjected to vacuum packaging processing, packaging weight
It measures as 1 kilogram/block, convenient for subsequently being added into molten steel, vacuum packaging before processing takes that finished product sample carries out chemistry and gas content is surveyed
Fixed, chemical composition and gas content are as shown in table 2, and most the DNA vaccine of high-purity La, Ce mischmetal reaches more than 67% at last.
1 traditional electrolyte of table prepares the chemical composition (wt%) of high-purity rare-earth
Table 2 uses the chemical composition (wt%) of electrolytic preparation high-purity rare-earth of the present invention
Embodiment 2
Prepared high-purity La, Ce mischmetal of experiment is 500kg.Traditional electrolyte prepares the chemical composition of high-purity rare-earth such as
Shown in table 1.Electrolyte is put into electrolytic cell, high-purity La, Ce mischmetal is precipitated in cathode after the fusing that is powered, and is fallen using inner wall for 6 °
The canister of taper comes out of the stove rare earth metal, and surface is completely covered with electrolyte, and tapping temperature is 1150 DEG C, canister
250 DEG C of preheating, rare earth stirs evenly before coming out of the stove, to prevent causing segregation；Treat that the electrolyte of rare earth metal surface covering is fully cured
Afterwards, it is dipped in cooling circulating water, water temperature is 30 DEG C, and after circulating water 2min, the complete cooled and solidified of rare earth metal takes off
Mould takes out rare earth metal；Rare earth metal is put into fine shot-blasting machine and is polished, and polishing time 15min fully handles rare earth
Oxidation on metal surface layer makes it expose metallic luster；High pure rare earth metals after polishing are subjected to vacuum packaging processing, packaging weight
It measures as 1 kilogram/block, convenient for subsequently being added into molten steel, vacuum packaging before processing takes that finished product sample carries out chemistry and gas content is surveyed
Fixed, chemical composition and gas content are as shown in table 3, and most the DNA vaccine of high-purity La, Ce mischmetal reaches more than 73% at last.
Table 3 uses the chemical composition (wt%) of electrolytic preparation high-purity rare-earth of the present invention
| La | Ce | S | P | O | Fe |
| 35 | 64 | <0.02 | <0.02 | 0.008 | Surplus |
Embodiment the result shows that, high-purity La, Ce mischmetal for preparing of the present invention, rare earth high purity, and technique
Simply, securely and reliably, the alloying component obtained is uniform.The total oxygen content in rare earth metal can be substantially reduced, most rare earth at last
The DNA vaccine of metal reaches more than 73%, and a kind of approach of high-efficient simple is provided for production super clean rare earth metal.
Claims (6)
- A kind of 1. method of high-purity La, Ce mischmetal of electrolytic preparation, which is characterized in that by weight percentage, La, Ce mixing In rare earth, ranging from the 60~70% of ranging from 30~35%, the Ce elements of La elements, this method includes the following steps：(1) it is electrolysed using electrolytic cell, is passed through direct current, control cathode-current density is 3~9A/cm2, anodic current density For 1~3A/cm2, slot pressure is 6~11V, is electrolysed, and electrolyte is the oxide rare earth and rare earth fluoride of mixing, is powered it Afterwards, pure La, Ce rare earth metal is precipitated in cathode deposition；(2) rare earth metal is come out of the stove using canister, surface is completely covered with electrolyte, and tapping temperature is 1000~1200 DEG C, canister preheats 200~400 DEG C, and rare earth stirs evenly when coming out of the stove；(3) after the electrolyte of rare earth metal surface covering is fully cured, be dipped in cooling circulating water, water temperature for 25~ 50 DEG C, after 1~3min of circulating water, rare earth metal is taken out in the complete cooled and solidified of rare earth metal, demoulding；(4) rare earth metal is put into fine shot-blasting machine and is polished, and polishing time is 10~20min, fully handles rare earth metal Surface oxide layer makes it expose metallic luster；(5) high pure rare earth metals after polishing are subjected to vacuum packaging processing, packed weight is 0.5~1.5 kilogram/block, is convenient for It is subsequently added into molten steel, is finally reached the purpose for preparing high-purity La, Ce mixing pure rare earth, the purity of rare earth reaches total oxygen content Less than 80ppm, complete to prepare.
- 2. the method for high-purity La, Ce mischmetal of electrolytic preparation described in accordance with the claim 1, which is characterized in that electrolyte is The cerium lanthanum oxide of mixing and lanthanum fluoride cerium, and lanthanum cerium weight ratio is 1 ︰ 2.
- 3. the method for high-purity La, Ce mischmetal of electrolytic preparation described in accordance with the claim 1, which is characterized in that canister To have the back taper inner wall of 2~10 ° of tapers, and surface electrolyte thickness is 1~3mm.
- 4. the method for high-purity La, Ce mischmetal of electrolytic preparation described in accordance with the claim 1, which is characterized in that shot-blasting machine into During row polishing, for the granularity of stainless steel pellet in 0.5~3mm, application pressure is 100~300MPa.
- 5. the method for high-purity La, Ce mischmetal of electrolytic preparation described in accordance with the claim 1, which is characterized in that after polishing Rare earth metal when carrying out Vacuum Package, using the vacuum packaging bag of 0.5~2mm, vacuum degree is 5~20Pa.
- 6. the method for high-purity La, Ce mischmetal of electrolytic preparation described in accordance with the claim 1, which is characterized in that prepare high-purity It after La, Ce mixing pure rare earth, is sampled, examines gas oxygen content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964913.XA CN106894056B (en) | 2015-12-18 | 2015-12-18 | A kind of method of high-purity La, Ce mischmetal of electrolytic preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964913.XA CN106894056B (en) | 2015-12-18 | 2015-12-18 | A kind of method of high-purity La, Ce mischmetal of electrolytic preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106894056A CN106894056A (en) | 2017-06-27 |
| CN106894056B true CN106894056B (en) | 2018-07-10 |
Family
ID=59190185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510964913.XA Active CN106894056B (en) | 2015-12-18 | 2015-12-18 | A kind of method of high-purity La, Ce mischmetal of electrolytic preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894056B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855087A (en) * | 1972-10-11 | 1974-12-17 | Shinetsu Chemical Co | Method for producing rare earth metal-containing alloys |
| CN1239152A (en) * | 1999-07-12 | 1999-12-22 | 唐定骧 | La, Pr and Ce mixed rare-earth metal and its making technology |
| CN1435513A (en) * | 2002-11-08 | 2003-08-13 | 包头市长河稀土材料有限公司 | Lanthanum and cerium composite alloy additive and preparing method thereof |
| CN103484898A (en) * | 2013-10-10 | 2014-01-01 | 宝纳资源控股(集团)有限公司 | Vacuum high-temperature continuous electrolytic furnace system and electrolytic method |
| CN103849900A (en) * | 2014-02-25 | 2014-06-11 | 广东省工业技术研究院(广州有色金属研究院) | Method for preparing rare earth alloy |
-
2015
- 2015-12-18 CN CN201510964913.XA patent/CN106894056B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855087A (en) * | 1972-10-11 | 1974-12-17 | Shinetsu Chemical Co | Method for producing rare earth metal-containing alloys |
| CN1239152A (en) * | 1999-07-12 | 1999-12-22 | 唐定骧 | La, Pr and Ce mixed rare-earth metal and its making technology |
| CN1435513A (en) * | 2002-11-08 | 2003-08-13 | 包头市长河稀土材料有限公司 | Lanthanum and cerium composite alloy additive and preparing method thereof |
| CN103484898A (en) * | 2013-10-10 | 2014-01-01 | 宝纳资源控股(集团)有限公司 | Vacuum high-temperature continuous electrolytic furnace system and electrolytic method |
| CN103849900A (en) * | 2014-02-25 | 2014-06-11 | 广东省工业技术研究院(广州有色金属研究院) | Method for preparing rare earth alloy |
Non-Patent Citations (1)
| Title |
|---|
| 熔盐电脱氧法制备La0.5Ce0.5Ni5的研究;张庆军 等;《功能材料》;20100731;第41卷(第7期);第1257-1260页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106894056A (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108425050B (en) | High-strength high-toughness aluminum lithium alloy and preparation method thereof | |
| CN113789464B (en) | Ceramic phase reinforced refractory high-entropy alloy and preparation method thereof | |
| CN109161770B (en) | High-modulus magnesium alloy and preparation method thereof | |
| CN110230008A (en) | The production method of ultra-fine extra-high strength wire, wire rod and wire rod | |
| CN105908218B (en) | A kind of high pure rare earth metals and its production and use | |
| CN104498734A (en) | Titanium recovery treatment method for titanium-bearing blast furnace slag based on vacuum carbothermal reduction | |
| CN104498748A (en) | Preparation method of high performance powder metallurgy high-niobium TiAl line intermetallic compound | |
| CN104190885A (en) | Method for producing huge high-purity nickel ingot square billets through four-gun electron beam cold bed furnace | |
| CN111206162A (en) | Rare earth metal purification method and purification equipment | |
| CN110484741B (en) | Method for preparing high-conductivity and high-strength copper-based material by using vacuum self-consumption method | |
| CN110304634A (en) | A kind of method of energy-efficient purifying industrial silicon | |
| CN106894056B (en) | A kind of method of high-purity La, Ce mischmetal of electrolytic preparation | |
| CN113005312A (en) | Method for preparing aluminum-scandium alloy by using NaF-NaCl-KCl molten salt | |
| CN100480433C (en) | Process for producing Mg rare earth intermediate alloy by Submerged Liquid Cathode electrolysis under low-temperature | |
| CN107937840B (en) | A kind of titanium-aluminium alloy composite material and preparation method | |
| CN111363988B (en) | TiCuZrPdNi amorphous composite material and preparation method thereof | |
| CN111020257B (en) | Method for improving purity of nickel cupronickel material | |
| CN103436736A (en) | Preparation method of high-strength high-elasticity modulus titanium matrix composite | |
| CN105838951B (en) | A kind of magnesium alloy of sacrificial anode containing La | |
| CN108265238B (en) | Zirconium-based metallic glass endogenetic composite material and tissue thinning method thereof | |
| CN111945032A (en) | 3D printing fine-grain titanium alloy and preparation method thereof | |
| RU2240373C1 (en) | High-purity vanadium obtaining method | |
| CN112267131B (en) | Yttrium-nickel alloy and preparation method and application thereof | |
| CN103394360B (en) | Preparation method of regenerative catalyst | |
| CN106636985A (en) | Metallic glass composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220527 Address after: 256218 west side of middle section of Xiwang Avenue, Xiwang Industrial Park, Zouping City, Binzhou City, Shandong Province Patentee after: Zhongke Xiwang Special Steel Co.,Ltd. Address before: 110016 No. 72, Wenhua Road, Shenhe District, Liaoning, Shenyang Patentee before: INSTITUTE OF METAL RESEARCH CHINESE ACADEMY OF SCIENCES |
|
| TR01 | Transfer of patent right |