CN1122848A - Prepn. of cerium-magnesium alloy by electrolytic eutectoid of chloride - Google Patents
Prepn. of cerium-magnesium alloy by electrolytic eutectoid of chloride Download PDFInfo
- Publication number
- CN1122848A CN1122848A CN 94113824 CN94113824A CN1122848A CN 1122848 A CN1122848 A CN 1122848A CN 94113824 CN94113824 CN 94113824 CN 94113824 A CN94113824 A CN 94113824A CN 1122848 A CN1122848 A CN 1122848A
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- CN
- China
- Prior art keywords
- cerium
- chloride
- magnesium
- magnesium alloy
- alloy
- 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
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 27
- RRTQFNGJENAXJJ-UHFFFAOYSA-N cerium magnesium Chemical compound [Mg].[Ce] RRTQFNGJENAXJJ-UHFFFAOYSA-N 0.000 title claims description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims description 8
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 15
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011777 magnesium Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 240000003936 Plumbago auriculata Species 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 abstract description 11
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000007792 addition Methods 0.000 abstract 1
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 241000209456 Plumbago Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
Additions of cerium chloride and magnesium chloride in the fused salt system of chlorides are controlled, and cerium and magnesium jointly separate out to become Ce-Mg alloy onthe cathode in the process of electrolysis. The technology is simple and convenient in operation, has high recovery rate of metal, and the composition of alloy is easily controlled and its ingredients are uniform. This invention uses cheap magnesium chloride as raw material, and is low in cost.
Description
The present invention relates to producing of a kind of cerium-magnesium alloy, be particularly suitable for electrolysis of chloride eutectrol process and produce cerium-magnesium alloy, belong to rare earth pyrometallurgy technical field.
The cerium-magnesium alloy purposes is extremely extensive.In blast-melted, add cerium-magnesium alloy, can change the mechanical property of cast iron, and processing characteristics is significantly improved.Add cerium-magnesium alloy in steel or non-ferrous metal, can change inclusion morphology in steel or the non-ferrous metal, crystal grain thinning improves its physicals.
In the past, the production method of cerium-magnesium alloy has two kinds:
1. mix-melting method: under the melting of metal state, formulated by a certain percentage metallic cerium and MAGNESIUM METAL.This method metal loss is big, and work situation is poor, and the alloy compositions segregation is serious.
2. melting salt liquid cathode electrolytic process: the metal magnesium ingot is placed electrolyzer, and the metallic cerium that fusing back electrolytic process is separated out enters and forms cerium-magnesium alloy in the magnesium.The raw material that this method is used is the more expensive MAGNESIUM METAL of price, the production cost height, and alloying constituent be difficult to control, have segregation phenomena.
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, a kind of Cerium II Chloride and cheap magnesium chloride of adopting is provided, electrolysis under muriate melting salt condition is separated out metallic cerium and MAGNESIUM METAL jointly and is prepared the novel process of cerium-magnesium alloy on negative electrode.
The present invention is achieved in that the crystallization Cerium II Chloride under reduced pressure dewatered and makes CeCl
3H
2O and Repone K place plumbago crucible (crucible is originally as anode electrolytic cell) by weight 1: 1.0～1.2 batchings, and the outside is heated to 820～860 ℃ with globars, treats electrolyte melting, puts down the molybdenum bar anode, connects direct current.Utilize the autofeed device, per hour CeCl is controlled in strictness
3H
2O and MgCl
2Add-on, carry out electrolysis continuously.At 840 ℃ of following CeCl
3Decomposition voltage be 2.97 volts, MgCl
2Decomposition voltage be 2.72 volts.Close based on the two decomposition voltage, in the electrolytic process, cerium and magnesium are separated out on negative electrode jointly.Because the Ce-Mg alloy ratio is great in fused electrolyte proportion, liquid Ce-Mg alloy falls into the porcelain dish susceptor, regularly takes out and promptly gets cerium-magnesium alloy.According to the CeCl that adds
3And MgCl
2The ratio difference, can make the cerium-magnesium alloy that contains magnesium 5～15% (or any component).
Provide embodiments of the invention below in conjunction with accompanying drawing:
With Cerium II Chloride and Repone K by weight 1: 1.0～1.2, be mixed with ionogen [5], place plumbago crucible electrolyzer (anode) [4], be heated to 820～860 ℃ with Globar heating element [6], after treating ionogen [5] fusing, put down molybdenum bar anode [2], connect direct supply [3], utilize autofeed device [1], per hour CeCl is controlled in strictness
3And MgCl
2Add-on, carry out electrolysis continuously, Ce and Mg separate out on negative electrode [2] jointly, fall into porcelain dish susceptor [7] immediately, regularly get the Ce-Mg alloy [8] in the susceptor.
Example 1, typical operation data of the present invention are:
Galvanic current 200A
The electrolysis transverse electric is pressed 10～12V
820～860 ℃ of electrolyte temperatures
Cathode current density 5A/cm
2
Anodic current density 0.4A/cm
2
Current efficiency 77%
Ionogen is formed CeCl
3/ KCl=1: 1.0～1.2
Under the aforesaid operations condition, utilize the autofeed device, control per hour adds CeCl
3H
2The O523 gram, MgCl
256 grams, continuous electrolysis took out cerium-magnesium alloy after 3 hours, and analytical results is listed in table 1.Mg content 5.03% in the cerium-magnesium alloy, cerium content 95.20%.
Example 2, operational condition are with example 1, and control per hour adds CeCl
3HO 512 grams, MgCl
278 grams, continuous electrolysis took out cerium-magnesium alloy after 3 hours, and analytical results is listed in table 2.Magnesium 6.98% in the alloy, cerium 93.62%.
Example 3, operational condition are with example 1,2, and control per hour adds CeCl
3The HO496 gram, MgCl
2111 grams, continuous electrolysis took out cerium-magnesium alloy after 3 hours, and analytical results is listed in table 3.Magnesium 10.40% in the alloy, cerium 89.52%.
Example 4, operational condition is the same, and control per hour adds CeCl
3The HO468 gram, MgCl
2166 grams, continuous electrolysis took out cerium-magnesium alloy after 3 hours, and analytical results is listed in table 4.Magnesium 15.93% in the alloy, cerium 85.73%.
The present invention compared with prior art, its advantage is that technology is simple, and is easy to operate, metal recovery Rate height, alloying component are easy to control, and component is even. Because the present invention adopts cheap magnesium chloride to be Raw material, production cost is low, is suitable for township enterprise and medium or small factory production.
Example 1 cerium-magnesium alloy component list 1
| Element | Ce Mg S P Fe Si |
| % by weight | 95.20 5.03 0.02 0.01 ＜0.2 ＜0.05 |
Example 2 cerium-magnesium alloy component lists 2
Example 3 cerium-magnesium alloy component lists 3
Example 4 cerium-magnesium alloy component lists 4
| Element | Ce Mg S P Fe Si |
| % by weight | 93.62 6.98 0.02 0.01 ＜0.2 ＜0.05 |
| Element wt % | Ce Mg S P Fe Si 89.52 10.40 0.02 0.01 ＜0.2 ＜0.05 |
| Element | Ce Mg S P Fe Si |
| % by weight | 85.73 15.39 0.02 0.01 ＜0.2 ＜0.05 |
Claims (1)
- A kind of novel process of producing cerium-magnesium alloy, it is characterized in that Cerium II Chloride and Repone K are prepared burden by weight 1: 1.0～1.2, place plumbago crucible electrolyzer (and being anode), the metal molybdenum bar is a negative electrode, porcelain dish is a susceptor, under 820～860 ℃, pass to direct current, cathode current density is 5A/cm 2, anodic current density is 0.4A/cm 2, per hour control the add-on of Cerium II Chloride and magnesium chloride, on negative electrode, separate out the cerium-magnesium alloy that contains magnesium 5～15% (or any component) jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94113824 CN1122848A (en) | 1994-11-11 | 1994-11-11 | Prepn. of cerium-magnesium alloy by electrolytic eutectoid of chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94113824 CN1122848A (en) | 1994-11-11 | 1994-11-11 | Prepn. of cerium-magnesium alloy by electrolytic eutectoid of chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1122848A true CN1122848A (en) | 1996-05-22 |
Family
ID=5036838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94113824 Pending CN1122848A (en) | 1994-11-11 | 1994-11-11 | Prepn. of cerium-magnesium alloy by electrolytic eutectoid of chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1122848A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443640C (en) * | 2005-12-30 | 2008-12-17 | 重庆大学 | Devices for adding elements in metal smelting |
| CN100532654C (en) * | 2005-12-28 | 2009-08-26 | 中国科学院长春应用化学研究所 | Preparation method of composite cathode molten salt electrolysis rare earth-magnesium master alloy |
| CN101457373B (en) * | 2005-12-28 | 2011-09-28 | 中国科学院长春应用化学研究所 | Method for electrolytic preparation of lanthanum rich mixed rare earth-magnesium intermediate alloy by high water-bearing material |
| CN1837412B (en) * | 2005-12-28 | 2012-11-07 | 中国科学院长春应用化学研究所 | Method for preparing yttrium-magnesium intermediate alloy by electrolyzing high-water-content material |
| CN107630233A (en) * | 2017-10-20 | 2018-01-26 | 安吉绿金金属材料有限公司 | A kind of method using rare earth-iron-boron Electrowinning rare earth metal |
| CN111349948A (en) * | 2020-02-27 | 2020-06-30 | 郑州大学 | Electrochemical method for recovering indium-gallium-zinc alloy from indium-gallium-zinc oxide |
-
1994
- 1994-11-11 CN CN 94113824 patent/CN1122848A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100532654C (en) * | 2005-12-28 | 2009-08-26 | 中国科学院长春应用化学研究所 | Preparation method of composite cathode molten salt electrolysis rare earth-magnesium master alloy |
| CN101457373B (en) * | 2005-12-28 | 2011-09-28 | 中国科学院长春应用化学研究所 | Method for electrolytic preparation of lanthanum rich mixed rare earth-magnesium intermediate alloy by high water-bearing material |
| CN1837412B (en) * | 2005-12-28 | 2012-11-07 | 中国科学院长春应用化学研究所 | Method for preparing yttrium-magnesium intermediate alloy by electrolyzing high-water-content material |
| CN100443640C (en) * | 2005-12-30 | 2008-12-17 | 重庆大学 | Devices for adding elements in metal smelting |
| CN107630233A (en) * | 2017-10-20 | 2018-01-26 | 安吉绿金金属材料有限公司 | A kind of method using rare earth-iron-boron Electrowinning rare earth metal |
| CN111349948A (en) * | 2020-02-27 | 2020-06-30 | 郑州大学 | Electrochemical method for recovering indium-gallium-zinc alloy from indium-gallium-zinc oxide |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |