KR20230158460A - 파이로클로어 복합 재료 및 이의 제조 방법과 응용 - Google Patents
파이로클로어 복합 재료 및 이의 제조 방법과 응용 Download PDFInfo
- Publication number
- KR20230158460A KR20230158460A KR1020237013225A KR20237013225A KR20230158460A KR 20230158460 A KR20230158460 A KR 20230158460A KR 1020237013225 A KR1020237013225 A KR 1020237013225A KR 20237013225 A KR20237013225 A KR 20237013225A KR 20230158460 A KR20230158460 A KR 20230158460A
- Authority
- KR
- South Korea
- Prior art keywords
- ammonia
- pyrochlore
- temperature section
- acid gas
- catalyst
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 41
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 34
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011593 sulfur Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000002253 acid Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000012266 salt solution Substances 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 239000000243 solution Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002243 precursor Substances 0.000 claims abstract description 9
- 239000007853 buffer solution Substances 0.000 claims abstract description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 239000002244 precipitate Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000005119 centrifugation Methods 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 56
- 239000007789 gas Substances 0.000 claims description 41
- 229910021529 ammonia Inorganic materials 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 229910002422 La(NO3)3·6H2O Inorganic materials 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 229910000608 Fe(NO3)3.9H2O Inorganic materials 0.000 claims description 2
- 229910020851 La(NO3)3.6H2O Inorganic materials 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007865 diluting Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 18
- 238000006555 catalytic reaction Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000010718 Oxidation Activity Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- -1 rare earth metal ion Chemical class 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910002492 Ce(NO3)3·6H2O Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8634—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
- C01B17/0426—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process characterised by the catalytic conversion
- C01B17/0434—Catalyst compositions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/047—Decomposition of ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/36—Three-dimensional structures pyrochlore-type (A2B2O7)
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- General Health & Medical Sciences (AREA)
- Catalysts (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210505726.5 | 2022-05-10 | ||
| CN202210505726.5A CN114950451B (zh) | 2022-05-10 | 2022-05-10 | 烧绿石复合材料及其制备方法和应用 |
| PCT/CN2022/097750 WO2023050865A1 (zh) | 2022-05-10 | 2022-06-09 | 烧绿石复合材料及其制备方法和应用 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20230158460A true KR20230158460A (ko) | 2023-11-20 |
| KR102677328B1 KR102677328B1 (ko) | 2024-06-24 |
Family
ID=82981114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020237013225A KR102677328B1 (ko) | 2022-05-10 | 2022-06-09 | 파이로클로어 복합 재료 및 이의 제조 방법과 응용 |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102677328B1 (zh) |
| CN (1) | CN114950451B (zh) |
| WO (1) | WO2023050865A1 (zh) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130107835A (ko) * | 2012-03-23 | 2013-10-02 | 경북대학교 산학협력단 | Ｈ２ｓ 및 ｎｈ３ 동시 제거용 고성능 몰리브덴―니켈계 촉매―흡수제 및 이의 제조방법 |
| US20150080213A1 (en) * | 2010-05-11 | 2015-03-19 | Board Of Regents Of The Nevada System Of Higher Education, On Behalf Of The University Of Nevada | Synthesis of Pyrochlore Nanostructures and Uses Thereof |
| CN105026316A (zh) * | 2013-07-11 | 2015-11-04 | 沙特基础工业全球技术公司 | 制备烧绿石的方法 |
| CN105188917A (zh) * | 2013-05-09 | 2015-12-23 | 沙特基础工业全球技术公司 | 粘土矿物负载型催化剂 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716502A (zh) * | 2009-11-17 | 2010-06-02 | 华东师范大学 | 一种烧绿石型复合氧化物光催化剂的制备方法 |
| CN101879445A (zh) * | 2010-07-15 | 2010-11-10 | 济南大学 | 一种催化燃烧去除柴油车碳烟的稀土烧绿石型复合氧化物催化剂及其制备方法 |
| JP5503465B2 (ja) * | 2010-08-30 | 2014-05-28 | Ｊｘ日鉱日石エネルギー株式会社 | パイロクロア型酸化物触媒の調製方法および燃料電池用電極触媒の製造方法 |
| CN104812699B (zh) * | 2012-11-08 | 2017-09-26 | 代表Mt创新中心的斯塔米卡邦有限公司 | 从含有nh3的进料回收硫并同时制造氢的方法 |
| CN106673068A (zh) * | 2016-11-22 | 2017-05-17 | 中国科学院生态环境研究中心 | 钙钛矿型复合氧化物催化材料在h2s选择氧化过程中的应用 |
| CN109114577B (zh) * | 2018-06-29 | 2020-11-06 | 山东三维石化工程股份有限公司 | 一种Claus工艺H2S酸性气催化燃烧方法 |
| CN110841641A (zh) * | 2019-11-23 | 2020-02-28 | 青岛联信催化材料有限公司 | 一种硫化氢选择氧化制硫磺催化剂及其制备方法 |
| JP7517685B2 (ja) * | 2020-10-06 | 2024-07-17 | 国立大学法人 大分大学 | 含ビスマスルテニウムパイロクロア金属酸化物の製造方法および酸素電極触媒の製造方法 |
-
2022
- 2022-05-10 CN CN202210505726.5A patent/CN114950451B/zh active Active
- 2022-06-09 WO PCT/CN2022/097750 patent/WO2023050865A1/zh unknown
- 2022-06-09 KR KR1020237013225A patent/KR102677328B1/ko active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150080213A1 (en) * | 2010-05-11 | 2015-03-19 | Board Of Regents Of The Nevada System Of Higher Education, On Behalf Of The University Of Nevada | Synthesis of Pyrochlore Nanostructures and Uses Thereof |
| KR20130107835A (ko) * | 2012-03-23 | 2013-10-02 | 경북대학교 산학협력단 | Ｈ２ｓ 및 ｎｈ３ 동시 제거용 고성능 몰리브덴―니켈계 촉매―흡수제 및 이의 제조방법 |
| CN105188917A (zh) * | 2013-05-09 | 2015-12-23 | 沙特基础工业全球技术公司 | 粘土矿物负载型催化剂 |
| CN105026316A (zh) * | 2013-07-11 | 2015-11-04 | 沙特基础工业全球技术公司 | 制备烧绿石的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114950451A (zh) | 2022-08-30 |
| WO2023050865A1 (zh) | 2023-04-06 |
| CN114950451B (zh) | 2023-03-28 |
| KR102677328B1 (ko) | 2024-06-24 |
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