CN110040754B - 一种氧化铝粉真空弱氢脱钠钾的方法 - Google Patents
一种氧化铝粉真空弱氢脱钠钾的方法 Download PDFInfo
- Publication number
- CN110040754B CN110040754B CN201910360337.6A CN201910360337A CN110040754B CN 110040754 B CN110040754 B CN 110040754B CN 201910360337 A CN201910360337 A CN 201910360337A CN 110040754 B CN110040754 B CN 110040754B
- Authority
- CN
- China
- Prior art keywords
- vacuum
- hydrogen
- potassium
- alumina powder
- sodium
- 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
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 79
- 239000001257 hydrogen Substances 0.000 title claims abstract description 79
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000000843 powder Substances 0.000 title claims abstract description 65
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 60
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 58
- 229910052700 potassium Inorganic materials 0.000 title claims abstract description 56
- 239000011591 potassium Substances 0.000 title claims abstract description 56
- 239000011734 sodium Substances 0.000 title abstract description 69
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title abstract description 58
- 229910052708 sodium Inorganic materials 0.000 title abstract description 58
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 28
- 239000010431 corundum Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 15
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052594 sapphire Inorganic materials 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- -1 integrated circuits Substances 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 description 20
- 238000011049 filling Methods 0.000 description 12
- 150000002431 hydrogen Chemical class 0.000 description 11
- 239000002253 acid Substances 0.000 description 9
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 8
- 238000004321 preservation Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 229910001948 sodium oxide Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 229910018516 Al—O Inorganic materials 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910014142 Na—O Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003804 effect on potassium Effects 0.000 description 1
- 230000000674 effect on sodium Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- ZVVSSOQAYNYNPP-UHFFFAOYSA-N olaflur Chemical compound F.F.CCCCCCCCCCCCCCCCCCN(CCO)CCCN(CCO)CCO ZVVSSOQAYNYNPP-UHFFFAOYSA-N 0.000 description 1
- 229960001245 olaflur Drugs 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium oxide Chemical compound [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
类类 | 赋存形态 | 占比(%) | 高温 | 真空 | 弱氢 |
吸附态 | 颗粒表面吸附 | 20~40 | 挥发 | 挥发 | * |
包裹态 | 颗粒晶颗间包裹 | 20~50 | 挥发 | 挥发 | * |
晶格态 | 晶格原晶取晶 | 2~20 | * | 挥发 | 晶晶 |
化合态 | 与酸性、两性氧化物化合 | 1~5 | * | 分解 | 分解 |
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910360337.6A CN110040754B (zh) | 2019-04-30 | 2019-04-30 | 一种氧化铝粉真空弱氢脱钠钾的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910360337.6A CN110040754B (zh) | 2019-04-30 | 2019-04-30 | 一种氧化铝粉真空弱氢脱钠钾的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110040754A CN110040754A (zh) | 2019-07-23 |
CN110040754B true CN110040754B (zh) | 2022-01-21 |
Family
ID=67280538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910360337.6A Active CN110040754B (zh) | 2019-04-30 | 2019-04-30 | 一种氧化铝粉真空弱氢脱钠钾的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110040754B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115073147A (zh) * | 2022-06-28 | 2022-09-20 | 浙江自立新材料股份有限公司 | 一种低钠及超低钠板状烧结刚玉的制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB440486A (en) * | 1933-09-20 | 1936-01-01 | Vaw Ver Aluminium Werke Ag | Improved manufacture of pure alumina |
US4217337A (en) * | 1977-10-31 | 1980-08-12 | Fujitsu Limited | Process for manufacturing an alumina substrate by acid purifying a prefired substrate before final firing |
DE69604712T2 (de) * | 1995-02-21 | 2000-03-02 | Sumitomo Chemical Co., Ltd. | Alpha-Aluminiumoxid und Verfahren zur dessen Herstellung |
RU2622133C1 (ru) * | 2016-06-21 | 2017-06-13 | Федеральное государственное бюджетное учреждение науки Институт общей и неорганической химии им. Н.С. Курнакова Российской академии наук (ИОНХ РАН) | Способ получения керамического прекурсора для синтеза лейкосапфира |
CN106315647B (zh) * | 2016-08-23 | 2017-12-01 | 山东晶鑫晶体科技有限公司 | 一种高纯导热球形氧化铝制备方法 |
CN107935007A (zh) * | 2017-11-27 | 2018-04-20 | 东北大学 | 二次焙烧制备高温低钠氧化铝的方法 |
CN109607584A (zh) * | 2019-01-31 | 2019-04-12 | 东北大学 | 一种高温超低钠氧化铝粉体材料的制备方法 |
-
2019
- 2019-04-30 CN CN201910360337.6A patent/CN110040754B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB440486A (en) * | 1933-09-20 | 1936-01-01 | Vaw Ver Aluminium Werke Ag | Improved manufacture of pure alumina |
US4217337A (en) * | 1977-10-31 | 1980-08-12 | Fujitsu Limited | Process for manufacturing an alumina substrate by acid purifying a prefired substrate before final firing |
DE69604712T2 (de) * | 1995-02-21 | 2000-03-02 | Sumitomo Chemical Co., Ltd. | Alpha-Aluminiumoxid und Verfahren zur dessen Herstellung |
RU2622133C1 (ru) * | 2016-06-21 | 2017-06-13 | Федеральное государственное бюджетное учреждение науки Институт общей и неорганической химии им. Н.С. Курнакова Российской академии наук (ИОНХ РАН) | Способ получения керамического прекурсора для синтеза лейкосапфира |
CN106315647B (zh) * | 2016-08-23 | 2017-12-01 | 山东晶鑫晶体科技有限公司 | 一种高纯导热球形氧化铝制备方法 |
CN107935007A (zh) * | 2017-11-27 | 2018-04-20 | 东北大学 | 二次焙烧制备高温低钠氧化铝的方法 |
CN109607584A (zh) * | 2019-01-31 | 2019-04-12 | 东北大学 | 一种高温超低钠氧化铝粉体材料的制备方法 |
Non-Patent Citations (2)
Title |
---|
低钠a-Al2O3粉体的合成工艺研究;李刚;《山东陶瓷》;20171031;第40卷(第5期);第3-5页 * |
回转窑煅烧生产电子陶瓷用低钠氧化铝技术研究;王建立等;《真空电子技术》;20151231;第59-62页 * |
Also Published As
Publication number | Publication date |
---|---|
CN110040754A (zh) | 2019-07-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7736439B2 (en) | Method for cleaning a polysilicon fraction | |
CN104556047B (zh) | 一种以石英岩制备高纯度石英粉体的生产工艺 | |
CN102992368B (zh) | 氢氧化铝微粉除钠净化方法 | |
CN107473231A (zh) | 一种对高纯石英砂尾矿的加工提纯工艺 | |
CN103111434A (zh) | 一种蓝宝石加工最终清洗工艺 | |
CN110040754B (zh) | 一种氧化铝粉真空弱氢脱钠钾的方法 | |
CN103214013A (zh) | 一种高纯氧化铝粉体的制备方法 | |
CN108706617A (zh) | 一种综合利用铝灰的方法 | |
CN102442826A (zh) | 一种以光伏硅切割废料制备的碳化硅复合陶瓷及其制造方法 | |
KR20190109949A (ko) | 디실란 합성 및 여과 정제 시스템 | |
CN113463068B (zh) | 半导体成膜apcvd机台工艺腔体干湿结合的保养方法 | |
JP3875952B2 (ja) | 低ソーダアルミナの製造装置及び製造方法 | |
CN108178174B (zh) | 一种利用铝材阳极氧化废液制备蓝宝石级高纯氧化铝的方法 | |
CN117945408A (zh) | 一种超声波辅助酸洗制备高纯石英砂的方法 | |
CN107827135A (zh) | 一种高纯超细氧化铝粉体的制备方法 | |
KR20240080910A (ko) | 고순도 탄화규소 분말의 제조방법 | |
CN115321538A (zh) | 一种超细碳化硅粉的提纯方法 | |
CN108190894A (zh) | 一种高纯石英砂的酸洗循环工艺 | |
CN107522253A (zh) | 一种铝改性赤泥滤料去除采油废水中聚丙烯酰胺的方法 | |
KR101454881B1 (ko) | 초고순도 알루미나의 제조방법 | |
KR100882501B1 (ko) | 폐실리콘 슬러지 정제방법 | |
KR101170232B1 (ko) | 실리콘 회수 방법 | |
CN101514025A (zh) | 一种制备超纯氧化镁粉体的方法 | |
KR100349038B1 (ko) | PACl(Poly aluminum Chloride) 응집제의 제조방법 | |
CN117509660B (zh) | 一种棕刚玉除尘灰与铝矾土水热协同晶化制备分子筛并提取镓的方法 |
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: 20230922 Address after: 222000 Chaoyang Shaji Village, Lianyungang Development Zone, Lianyungang City, Jiangsu Province Patentee after: Lianyungang Zhaofu Mineral Products Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20230922 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 412007 No. 88 Taishan Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee before: HUNAN University OF TECHNOLOGY |