CN111575493B - 一种高纯钪产品中杂质的去除方法 - Google Patents
一种高纯钪产品中杂质的去除方法 Download PDFInfo
- Publication number
- CN111575493B CN111575493B CN202010668707.5A CN202010668707A CN111575493B CN 111575493 B CN111575493 B CN 111575493B CN 202010668707 A CN202010668707 A CN 202010668707A CN 111575493 B CN111575493 B CN 111575493B
- Authority
- CN
- China
- Prior art keywords
- purity scandium
- acid solution
- product
- solution
- scandium
- 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
- 229910052706 scandium Inorganic materials 0.000 title claims abstract description 89
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000012535 impurity Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000000243 solution Substances 0.000 claims abstract description 99
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims abstract description 90
- 238000000605 extraction Methods 0.000 claims abstract description 58
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 51
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 51
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims abstract description 45
- 230000007935 neutral effect Effects 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- GOCVCBDBQYEFQD-UHFFFAOYSA-N 3-[[2-ethylhexoxy(2-ethylhexyl)phosphoryl]oxymethyl]heptane Chemical group CCCCC(CC)COP(=O)(CC(CC)CCCC)OCC(CC)CCCC GOCVCBDBQYEFQD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 13
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 claims description 25
- 150000007522 mineralic acids Chemical class 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 239000012074 organic phase Substances 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- DVMZCYSFPFUKKE-UHFFFAOYSA-K scandium chloride Chemical compound Cl[Sc](Cl)Cl DVMZCYSFPFUKKE-UHFFFAOYSA-K 0.000 claims description 4
- DFCYEXJMCFQPPA-UHFFFAOYSA-N scandium(3+);trinitrate Chemical compound [Sc+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O DFCYEXJMCFQPPA-UHFFFAOYSA-N 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 abstract description 15
- 150000003325 scandium Chemical class 0.000 abstract description 13
- -1 scandium ion Chemical class 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000012266 salt solution Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000284 extract Substances 0.000 abstract description 5
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 53
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 20
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- 229910052761 rare earth metal Inorganic materials 0.000 description 14
- 150000002910 rare earth metals Chemical class 0.000 description 14
- 229910052726 zirconium Inorganic materials 0.000 description 14
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- HJGMWXTVGKLUAQ-UHFFFAOYSA-N oxygen(2-);scandium(3+) Chemical compound [O-2].[O-2].[O-2].[Sc+3].[Sc+3] HJGMWXTVGKLUAQ-UHFFFAOYSA-N 0.000 description 7
- 229910004369 ThO2 Inorganic materials 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 6
- MJMQIMYDFATMEH-UHFFFAOYSA-N 2-chloro-2,4,4-trimethylpentane Chemical compound CC(C)(C)CC(C)(C)Cl MJMQIMYDFATMEH-UHFFFAOYSA-N 0.000 description 5
- ZDFBXXSHBTVQMB-UHFFFAOYSA-N 2-ethylhexoxy(2-ethylhexyl)phosphinic acid Chemical compound CCCCC(CC)COP(O)(=O)CC(CC)CCCC ZDFBXXSHBTVQMB-UHFFFAOYSA-N 0.000 description 5
- 241000968352 Scandia <hydrozoan> Species 0.000 description 4
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 3
- 229910052693 Europium Inorganic materials 0.000 description 3
- 229910052688 Gadolinium Inorganic materials 0.000 description 3
- 229910052689 Holmium Inorganic materials 0.000 description 3
- 229910052765 Lutetium Inorganic materials 0.000 description 3
- 229910052779 Neodymium Inorganic materials 0.000 description 3
- 229910052777 Praseodymium Inorganic materials 0.000 description 3
- 229910052772 Samarium Inorganic materials 0.000 description 3
- 229910052771 Terbium Inorganic materials 0.000 description 3
- 229910052776 Thorium Inorganic materials 0.000 description 3
- 229910052775 Thulium Inorganic materials 0.000 description 3
- 229910052769 Ytterbium Inorganic materials 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 3
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 3
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 3
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QLPMKRZYJPNIRP-UHFFFAOYSA-M methyl(trioctyl)azanium;bromide Chemical compound [Br-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC QLPMKRZYJPNIRP-UHFFFAOYSA-M 0.000 description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 3
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 3
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 3
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 3
- 229910052727 yttrium Inorganic materials 0.000 description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 3
- UKOSMAXFBVXOSX-UHFFFAOYSA-N 2-ethylhexyl(octan-3-yloxy)phosphinic acid Chemical compound CCCCCC(CC)OP(O)(=O)CC(CC)CCCC UKOSMAXFBVXOSX-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002390 rotary evaporation Methods 0.000 description 2
- ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OFOUIYGUOUTLLP-UHFFFAOYSA-N 2,4,4-trimethyl-1-(2,4,4-trimethylpentoxyphosphonoyloxy)pentane Chemical compound CC(C)(C)CC(C)COP(=O)OCC(C)CC(C)(C)C OFOUIYGUOUTLLP-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- QUXFOKCUIZCKGS-UHFFFAOYSA-N bis(2,4,4-trimethylpentyl)phosphinic acid Chemical compound CC(C)(C)CC(C)CP(O)(=O)CC(C)CC(C)(C)C QUXFOKCUIZCKGS-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- SEGLCEQVOFDUPX-UHFFFAOYSA-N di-(2-ethylhexyl)phosphoric acid Chemical compound CCCCC(CC)COP(O)(=O)OCC(CC)CCCC SEGLCEQVOFDUPX-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
- C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
- C22B3/3844—Phosphonic acid, e.g. H2P(O)(OH)2
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010668707.5A CN111575493B (zh) | 2020-07-13 | 2020-07-13 | 一种高纯钪产品中杂质的去除方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010668707.5A CN111575493B (zh) | 2020-07-13 | 2020-07-13 | 一种高纯钪产品中杂质的去除方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111575493A CN111575493A (zh) | 2020-08-25 |
CN111575493B true CN111575493B (zh) | 2022-05-20 |
Family
ID=72127623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010668707.5A Active CN111575493B (zh) | 2020-07-13 | 2020-07-13 | 一种高纯钪产品中杂质的去除方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111575493B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113371751B (zh) * | 2021-05-13 | 2022-07-19 | 中国恩菲工程技术有限公司 | 超高纯氧化钪的制备方法和应用 |
CN113584327B (zh) * | 2021-06-28 | 2022-10-28 | 中国恩菲工程技术有限公司 | 氧化钪的提纯方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103243220B (zh) * | 2013-05-14 | 2015-05-20 | 中国科学院长春应用化学研究所 | 一种熔盐氯化渣的处理方法 |
-
2020
- 2020-07-13 CN CN202010668707.5A patent/CN111575493B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN111575493A (zh) | 2020-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101787451B (zh) | 提高酸性磷型萃取剂萃取分离稀土元素效率的方法 | |
AU2010202408B2 (en) | Method for extracting and separating rare earth elements | |
CN104294063B (zh) | 低浓度稀土溶液萃取回收稀土的方法 | |
JP5499353B2 (ja) | 希土類元素の抽出・分離方法 | |
EP2404892B1 (en) | Synthesis of Rare Earth Metal Extractant | |
EP2592067B1 (en) | Method for synthesizing rare earth metal extractant | |
CN106521190B (zh) | 含氨基中性膦萃取剂用于萃取分离锆和/或铪的用途和方法 | |
CN111575493B (zh) | 一种高纯钪产品中杂质的去除方法 | |
KR101727978B1 (ko) | 토륨의 선택적 추출방법 | |
CN113736995A (zh) | 一种羧酸类化合物作为萃取剂的应用和金属离子萃取方法 | |
EP2404893A1 (en) | Synthesis of rare earth metal extractant | |
JP5684885B1 (ja) | 希土類抽出剤及び希土類抽出方法 | |
JP5299914B2 (ja) | 希土類元素の抽出・分離方法 | |
CN101164890A (zh) | 一种采用于混合萃取体系分离铈回收氟及制备三氟化铈超微粉体的方法 | |
CN112063862A (zh) | 一种用于稀土富集的萃取剂及其应用 | |
CN103060560A (zh) | 一种分离重稀土元素的萃取剂 | |
US9174855B2 (en) | Tributyl phosphate-nitrate solvent extraction process for producing high purity nuclear grade rare earth metal oxides | |
CN109266870A (zh) | 提取氧化钪的方法 | |
CN111961849B (zh) | 一种萃取分离钪的方法 | |
CN114737056B (zh) | 一种有机萃取剂及其回收金属元素的方法和应用 | |
CN1212411C (zh) | 从硝酸稀土溶液中提取铈(ⅳ)的方法 | |
El Hady | " Individual Separation of Yttrium and Dysprosium Oxides from the Rare Earths Product obtained from Xenotime Mineral Concentrate | |
CN108220632A (zh) | 一种稀土回收富集工艺 | |
CN114438350A (zh) | 一种三氧化二钇稀土氧化物还原工艺 | |
JPH0662300B2 (ja) | イットリウムの分離方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220620 Address after: 361000 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee after: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. Address before: 361027 Ke Jing she, Haicang District, Xiamen City, Fujian Province Patentee before: XIAMEN TUNGSTEN Co.,Ltd. |
|
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 361000 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee after: Fujian Jinlong Rare Earth Co.,Ltd. Address before: 361000 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee before: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. |