CN103451681B - The extracting method of a kind of metal titanium - Google Patents
The extracting method of a kind of metal titanium Download PDFInfo
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- CN103451681B CN103451681B CN201310394115.9A CN201310394115A CN103451681B CN 103451681 B CN103451681 B CN 103451681B CN 201310394115 A CN201310394115 A CN 201310394115A CN 103451681 B CN103451681 B CN 103451681B
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000010936 titanium Substances 0.000 title claims abstract description 46
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 47
- 230000009467 reduction Effects 0.000 claims abstract description 24
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010439 graphite Substances 0.000 claims abstract description 17
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 229910052786 argon Inorganic materials 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 11
- 239000001110 calcium chloride Substances 0.000 claims abstract description 9
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 9
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims abstract description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910014715 LixTiO2 Inorganic materials 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 238000000748 compression moulding Methods 0.000 claims abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 26
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical group [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 22
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910001508 alkali metal halide Inorganic materials 0.000 claims description 2
- 150000008045 alkali metal halides Chemical class 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 description 18
- 239000007788 liquid Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000209456 Plumbago Species 0.000 description 4
- 229910003074 TiCl4 Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009702 powder compression Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
An extracting method for metal titanium, is characterized in that being made up of following step: by the TiO of compression moulding2Test piece and metal collector compound are as negative electrode, and using graphite as anode, in argon gas atmosphere, in the alkali metal chloride of melting, electrolysis temperature 400 ~ 700 DEG C, electrolysis voltage is 2.0 ~ 3.2V, and cathodic reduction is LixTiO2, wherein x��1; The negative electrode of taking-up is inserted melting CaCl2Ionogen resume is as negative electrode, and using graphite as anode, in argon gas atmosphere, electrolysis temperature 850 ~ 900 DEG C, electrolysis voltage 3.0 ~ 3.2V, after electrolysis terminates, negative electrode is metal titanium. The present invention significantly improves the Faradaic current efficiency extracting titanium, reduces production energy consumption, obtains with one-step electrolysis reduction method compared with same oxygen content titanium, adopts the method for the present invention, and electrolytic efficiency is the highest can promote 22%, and energy consumption declines at most 20%.
Description
Technical field
The method of titanium is produced in a kind of fused salt electrolysis, it relates to a kind of method of the method, particularly extracting titanium from electrolyzed molten salt of fused salt electrolysis metallurgical production metal.
Background technology
Titanium is the light metal in refractory metal, and the intensity of titanium alloy can compare favourably with high-strength steel, has well heat-resisting and resistance to low temperature and good corrosion resistance simultaneously. These advantages of titanium so that it is be widely used in the fields such as space flight, oil, the energy, traffic, chemical industry, biomedicine, and its Application Areas is constantly expanded. Some expert even predicts, titanium will become " the 3rd metal " after iron, aluminium, and 21st century will be " century of titanium ". But the price of titanium is too expensive, mainly leaching process due to titanium is too complicated. The method of widespread use in the industrial production only l937 Luxembourg scientist Kroll.W.A. magnesium reduction TiCl at present4Successfully produce the Kroll method of titanium sponge, although through the development of decades, Kroll method has had certain improvement, but due to its technical process tediously long, each operating process is difficult to realize continuous operations, and energy consumption is too high so that the cost of titanium remains high, so the production method making great efforts to seek the titanium of a kind of serialization, low cost becomes the focus that metallurgical expert pays close attention to jointly both at home and abroad.
Various based on the smelting novel method of titanium at present, substantially can conclude as TiO2Direct electrolysis method, TiO2Calciothermy, TiO2Thermit reduction, TiO2Bromine reduction method, TiCl4Electrolytic process, TiCl4Magnesium reduction, TiCl4Sodium reduction, TiCl4Hydrogen reduction method etc. Wherein various method can be subdivided into again multiple method. Such as TiO2Direct electrolysis method can be divided into again FFC Cambridge technique (melting CaCl according to reduction mechanism, precursor sources2Middle electrochemical reduction TiO2Sintered compact), the electrochemical reduction of Ti slag, melting salt dissolves TiO2Electrochemical reduction, TiO2Carbon reduction etc.Above method respectively has relative merits, and wherein FFC Cambridge technique is method the most noticeable in current titanium extraction process. This technique detailed process is: after titania powder compression moulding, make composite cathode, graphite does anode, fused calcium chloride is as ionogen, electrolysis temperature 800 ~ 1000 DEG C, electrolysis under voltage 3.0 ~ 3.2V, the cation transport that catholyte goes out is to anode discharge, and negative electrode is directly reduced to metal titanium. The method can significantly reduce the production cost of metal titanium and titanium alloys, is that a kind of process is simple, cost brand-new material produce method lower, eco-friendly. According to open source literature, the method can under the electrolysis voltage of 3.0 ~ 3.2V, by TiO2It is reduced to metal titanium quickly, but needs the solid solution oxygen level of longer electrolysis time to reduce in metal titanium. Due to the impact of the factor such as intrinsic electronic conduction of fused salt, long-time electrolysis determines the low current efficiency (2000ppm oxygen level vs.15% current efficiency) that current most of laboratory obtains in research FFC method process.
Summary of the invention
It is an object of the invention to for the deficiency that above-mentioned prior art exists, it is provided that a kind of extracting titanium from electrolyzed molten salt method that can effectively promote electrolytic process current efficiency, reduction energy consumption.
It is an object of the invention to be achieved through the following technical solutions: by the TiO of compression moulding2Test piece and metal collector compound are as negative electrode, and using graphite as anode, in argon gas atmosphere, in the alkali metal chloride of melting, electrolysis temperature 400 ~ 700 DEG C, electrolysis voltage is 2.0 ~ 3.2V, and cathodic reduction is LixTiO2, wherein x��1; The negative electrode of taking-up is inserted melting CaCl2Ionogen resume is as negative electrode, and using graphite as anode, in argon gas atmosphere, electrolysis temperature 850 ~ 900 DEG C, electrolysis voltage 3.0 ~ 3.2V, after electrolysis terminates, negative electrode is metal titanium.
Wherein, TiO2Test piece is commercially available TiO2Powder pressing forming, pressure is 2 ~ 10MPa, and sintering temperature is 300 ~ 900 DEG C, sintering time 1 ~ 4 hour.
Above-mentioned metal collector is thread, netted or the titanium of sheet, stainless steel, molybdenum, tungsten or nickel.
Above-mentioned alkali metal halide is one or both the mixture in LiCl, LiCl and NaCl or KCl.
The present invention adopts two-step electrochemical reduction method reduction TiO2Prepare metal titanium, namely first by TiO2In alkali metal chloride fused salt, electroreduction is titanium compound at a low price, and then prepared by the electrolysis in the fused salt of chloride containing calcium of low price titanium compound metal titanium. Wherein, owing to the first step reduction process current efficiency can reach 90% (titanium valency state is reduced to+4-x(x��1 by+4) valency), so significantly improving the Faradaic current efficiency extracting titanium, reduce production energy consumption. Experiment shows, obtains compared with same oxygen content titanium with one-step electrolysis reduction method, adopts the method for the present invention, and electrolytic efficiency is the highest can promote 22%, and energy consumption declines at most 20%.
Accompanying drawing explanation
Fig. 1 is the X diffracting spectrum of embodiment 1 titanium.
Fig. 2 is the stereoscan photograph of embodiment 1 titanium.
Specific implementation method
The present invention being described in further detail below in conjunction with drawings and Examples, these describe just in order to the present invention instead of limitation of the present invention are described better.
Embodiment 1
By commercially available for 1g TiO2Powder is pressed into diameter 20mm under 8MPa, the test piece of thickness 3mm, and 900 DEG C sinter 1 hour in atmosphere, obtain TiO2Test piece. By test piece with after molybdenum net tight, it is wound on long molybdenum silk as negative electrode with thin molybdenum silk again, take plumbago crucible as anode, taking melting LiCl as ionogen, in argon gas atmosphere, temperature is 700 DEG C, and voltage is 2.8V, and the first step electrolysis proceeds to the melting CaCl of 850 DEG C after after completing negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell2Continue as negative electrode.2nd one-step electrolysis take graphite rod as anode, and voltage is 3.2V, and electrolysis completed after 3 hours. After negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell, clean through distilled water, and after 60 DEG C of vacuum dryings, obtain 0.6g metal titanium. Fig. 1 is XRD figure spectrum; Fig. 2 is SEM collection of illustrative plates. With melting CaCl2One-step electrolysis reduction obtains the suitable product of oxygen level and compares, and current efficiency promotes 22%, energy consumption decline 20%.
Embodiment 2
By TiO commercially available for 1g2Powder is pressed into diameter 20mm under 6MPa, the test piece of thickness 3mm, and 700 DEG C sinter 2 hours in atmosphere, obtain TiO2Test piece. By test piece with after stainless (steel) wire tight, it is wound on long Stainless Steel Wire as negative electrode with Stainless Steel Wire again, take graphite rod as anode, taking the mixture of LiCl and NaCl of melting mol ratio 1:1 as ionogen, in argon gas atmosphere, temperature is 600 DEG C, and voltage is 3.0V, and the first step electrolysis proceeds to the melting CaCl of 900 DEG C after after completing negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell2Continue as negative electrode. 2nd one-step electrolysis take graphite rod as anode, and voltage is 3.1V, and electrolysis completed after 3 hours. After negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell, clean through distilled water, and after 60 DEG C of vacuum dryings, obtain 0.6g metal titanium. With melting CaCl2One-step electrolysis reduction obtains the suitable product of oxygen level and compares, and current efficiency promotes 21%, energy consumption decline 18%.
Embodiment 3
By commercially available for 1g TiO2Powder is pressed into diameter 20mm under 4MPa, the test piece of thickness 3mm, and 500 DEG C sinter 3 hours in atmosphere, obtain TiO2Test piece. Test piece molybdenum silk is wound around and makes negative electrode, take plumbago crucible as anode, taking the mixture of LiCl and KCl of melting mol ratio 1:1 as ionogen, in argon gas atmosphere, temperature is 600 DEG C, voltage is 3.0V, and the first step electrolysis proceeds to the melting CaCl of 900 DEG C after after completing negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell2Continue as negative electrode. 2nd one-step electrolysis take graphite rod as anode, and voltage is 3.0V, and electrolysis completed after 3 hours. After negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell, clean through distilled water, and after 60 DEG C of vacuum dryings, obtain 0.6g metal titanium. With melting CaCl2One-step electrolysis reduction obtains the suitable product of oxygen level and compares, and current efficiency promotes 20%, energy consumption decline 16%.
Embodiment 4
By commercially available for 1g TiO2Powder is pressed into diameter 20mm under 10MPa, the test piece of thickness 3mm, and 300 DEG C sinter 4 hours in atmosphere, obtain TiO2Test piece. By test piece with after titanium net tight, it is wound on long titanium silk as negative electrode with thin titanium silk again, take plumbago crucible as anode, taking the mixture of LiCl, NaCl and KCl of melting mol ratio 1:1:1 as ionogen, in argon gas atmosphere, temperature is 400 DEG C, and voltage is 3.2V, and the first step electrolysis proceeds to the melting CaCl of 900 DEG C after after completing negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell2Continue as negative electrode. 2nd one-step electrolysis take graphite rod as anode, and voltage is 3.0V, and electrolysis completed after 3 hours. After negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell, clean through distilled water, and after 60 DEG C of vacuum dryings, obtain 0.6g metal titanium. With at melting CaCl2The reduction of middle one-step electrolysis obtains the suitable product of oxygen level and compares, and current efficiency promotes 21%, energy consumption decline 17%.
Embodiment 5
By commercially available for 1g TiO2Powder is pressed into diameter 20mm under 2MPa, the test piece of thickness 3mm, and 900 DEG C sinter 2 hours in atmosphere, obtain TiO2Test piece.Test piece and tungsten net are complex as negative electrode, take plumbago crucible as anode, taking melting LiCl as ionogen, in argon gas atmosphere, temperature is 700 DEG C, and voltage is 2.0V, and the first step electrolysis proceeds to the melting CaCl of 900 DEG C after after completing negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell2Continue as negative electrode. 2nd one-step electrolysis take graphite rod as anode, and voltage is 3.1V, and electrolysis completed after 3 hours. After negative electrode being proposed fused salt liquid level and being cooled to normal temperature in a cell, clean through distilled water, and after 60 DEG C of vacuum dryings, obtain 0.6g metal titanium. With at melting CaCl2The reduction of middle one-step electrolysis obtains the suitable product of oxygen level and compares, and current efficiency promotes 20%, energy consumption decline 16%.
Claims (3)
1. an extracting method for metal titanium, is characterized in that being made up of following step: by the TiO of compression moulding2Test piece and metal collector compound are as negative electrode, and using graphite as anode, in argon gas atmosphere, in the alkali metal chloride of melting, electrolysis temperature 400 ~ 700 DEG C, electrolysis voltage is 2.0 ~ 3.2V, and cathodic reduction is LixTiO2, wherein x��1; The negative electrode of taking-up is inserted melting CaCl2Ionogen resume as negative electrode, using graphite as anode, in argon gas atmosphere, electrolysis temperature 850 ~ 900 DEG C, electrolysis voltage 3.0 ~ 3.2V, after electrolysis terminates, negative electrode is metal titanium;
Described alkali metal halide is selected from LiCl, LiCl and NaCl, LiCl and KCl or LiCl and NaCl and KCl.
2. the extracting method of metal titanium according to claim 1, is characterized in that described TiO2Test piece is commercially available TiO2Powder pressing forming, pressure is 2 ~ 10MPa, and sintering temperature is 300 ~ 900 DEG C, sintering time 1 ~ 4 hour.
3. the extracting method of metal titanium according to claim 1, is characterized in that described metal collector is thread, netted or the titanium of sheet, stainless steel, molybdenum, tungsten or nickel.
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| CN103849900B (en) * | 2014-02-25 | 2016-08-17 | 广东省工业技术研究院(广州有色金属研究院) | A kind of preparation method of rare earth alloy |
| CN108893751B (en) * | 2018-06-13 | 2020-07-10 | 华中科技大学 | Preparation method and application of titanium-based oxide |
| CN111762813A (en) * | 2020-06-10 | 2020-10-13 | 宁夏中科欧德科技有限公司 | Preparation method of high-purity titanium monoxide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837411A (en) * | 2006-02-17 | 2006-09-27 | 武汉大学 | Method for preparing refractory active metal or alloy |
| CN101289754A (en) * | 2008-06-04 | 2008-10-22 | 曹大力 | Process for preparing metallic titanium and titanium master alloy |
| CN102719857A (en) * | 2012-07-03 | 2012-10-10 | 北京科技大学 | Method and electrolytic tank for producing metal titanium through directive electrolysis of titanium dioxide |
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| JP4342413B2 (en) * | 2004-02-20 | 2009-10-14 | 株式会社大阪チタニウムテクノロジーズ | Method for producing Ti or Ti alloy by Ca reduction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837411A (en) * | 2006-02-17 | 2006-09-27 | 武汉大学 | Method for preparing refractory active metal or alloy |
| CN101289754A (en) * | 2008-06-04 | 2008-10-22 | 曹大力 | Process for preparing metallic titanium and titanium master alloy |
| CN102719857A (en) * | 2012-07-03 | 2012-10-10 | 北京科技大学 | Method and electrolytic tank for producing metal titanium through directive electrolysis of titanium dioxide |
Non-Patent Citations (1)
| Title |
|---|
| Electrochemical Synthesis of LiTiO2 and LiTi2O4 in Molten LiCl;Kai Jiang et al.;《Chem.Mater.》;20040923;第16卷(第22期);第4324-4329页 * |
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Effective date of registration: 20171227 Address after: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Patentee after: GUANGDONG INSTITUTE OF RARE METALS Address before: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Patentee before: GUANGZHOU Research Institute OF NON FERROUS METALS |
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Application publication date: 20131218 Assignee: Yantai Runyingying New Materials Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980036276 Denomination of invention: A Method for Extracting Titanium Metal Granted publication date: 20160608 License type: Common License Record date: 20230606 |
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Application publication date: 20131218 Assignee: Shandong Kuangshi New Material Technology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980037714 Denomination of invention: A Method for Extracting Titanium Metal Granted publication date: 20160608 License type: Common License Record date: 20230710 |
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Application publication date: 20131218 Assignee: Aromatic Encyclopedia Biotechnology (Chongqing) Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980040853 Denomination of invention: A Method for Extracting Titanium Metal Granted publication date: 20160608 License type: Common License Record date: 20230831 |
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Application publication date: 20131218 Assignee: DONGGUAN HUANNIAO NEW MATERIAL Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980040911 Denomination of invention: A Method for Extracting Titanium Metal Granted publication date: 20160608 License type: Common License Record date: 20230831 |
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Application publication date: 20131218 Assignee: Chongqing Zhixin Yicheng Biotechnology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980048292 Denomination of invention: A method for extracting titanium metal Granted publication date: 20160608 License type: Common License Record date: 20231124 |
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