CN109465113B - 一种铝土矿浮选捕收剂及铝土矿浮选方法 - Google Patents
一种铝土矿浮选捕收剂及铝土矿浮选方法 Download PDFInfo
- Publication number
- CN109465113B CN109465113B CN201811639714.1A CN201811639714A CN109465113B CN 109465113 B CN109465113 B CN 109465113B CN 201811639714 A CN201811639714 A CN 201811639714A CN 109465113 B CN109465113 B CN 109465113B
- Authority
- CN
- China
- Prior art keywords
- acid
- agent
- sodium
- ore
- collector
- 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
- 238000005188 flotation Methods 0.000 title claims abstract description 39
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 23
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 20
- 239000000194 fatty acid Substances 0.000 claims abstract description 20
- 229930195729 fatty acid Natural products 0.000 claims abstract description 20
- 239000011734 sodium Substances 0.000 claims abstract description 20
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 20
- -1 sodium fatty acid Chemical class 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 125000003118 aryl group Chemical group 0.000 claims abstract description 6
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims abstract description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 5
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000005642 Oleic acid Substances 0.000 claims abstract description 5
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 claims abstract description 5
- 235000020661 alpha-linolenic acid Nutrition 0.000 claims abstract description 5
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229960004488 linolenic acid Drugs 0.000 claims abstract description 5
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 claims abstract description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 5
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229940082004 sodium laurate Drugs 0.000 claims abstract description 5
- 239000002265 redox agent Substances 0.000 claims abstract description 4
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 3
- 235000021313 oleic acid Nutrition 0.000 claims abstract description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 235000010265 sodium sulphite Nutrition 0.000 claims description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 3
- VDEUYMSGMPQMIK-UHFFFAOYSA-N benzhydroxamic acid Chemical compound ONC(=O)C1=CC=CC=C1 VDEUYMSGMPQMIK-UHFFFAOYSA-N 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 239000004021 humic acid Substances 0.000 claims description 3
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 3
- 229960004025 sodium salicylate Drugs 0.000 claims description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 3
- 229920001864 tannin Polymers 0.000 claims description 3
- 239000001648 tannin Substances 0.000 claims description 3
- 235000018553 tannin Nutrition 0.000 claims description 3
- 239000000811 xylitol Substances 0.000 claims description 3
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 3
- 229960002675 xylitol Drugs 0.000 claims description 3
- 235000010447 xylitol Nutrition 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 33
- 229910052717 sulfur Inorganic materials 0.000 abstract description 16
- 239000011593 sulfur Substances 0.000 abstract description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 238000005187 foaming Methods 0.000 abstract description 3
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052683 pyrite Inorganic materials 0.000 abstract description 3
- 239000011028 pyrite Substances 0.000 abstract description 3
- 230000000536 complexating effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 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 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000002468 redox effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NEAQRZUHTPSBBM-UHFFFAOYSA-N 2-hydroxy-3,3-dimethyl-7-nitro-4h-isoquinolin-1-one Chemical compound C1=C([N+]([O-])=O)C=C2C(=O)N(O)C(C)(C)CC2=C1 NEAQRZUHTPSBBM-UHFFFAOYSA-N 0.000 description 1
- 235000017858 Laurus nobilis Nutrition 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- 235000005212 Terminalia tomentosa Nutrition 0.000 description 1
- 244000125380 Terminalia tomentosa Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 229940070765 laurate Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- IVIFHBRWCULHPZ-UHFFFAOYSA-N n,1-dihydroxynaphthalene-2-carboxamide Chemical compound C1=CC=CC2=C(O)C(C(=O)NO)=CC=C21 IVIFHBRWCULHPZ-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- WYPBVHPKMJYUEO-NBTZWHCOSA-M sodium;(9z,12z)-octadeca-9,12-dienoate Chemical compound [Na+].CCCCC\C=C/C\C=C/CCCCCCCC([O-])=O WYPBVHPKMJYUEO-NBTZWHCOSA-M 0.000 description 1
- UNZSHUCNBUBSGW-IFNWOZJISA-M sodium;(9z,12z,15z)-octadeca-9,12,15-trienoate Chemical compound [Na+].CC\C=C/C\C=C/C\C=C/CCCCCCCC([O-])=O UNZSHUCNBUBSGW-IFNWOZJISA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811639714.1A CN109465113B (zh) | 2018-12-29 | 2018-12-29 | 一种铝土矿浮选捕收剂及铝土矿浮选方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811639714.1A CN109465113B (zh) | 2018-12-29 | 2018-12-29 | 一种铝土矿浮选捕收剂及铝土矿浮选方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109465113A CN109465113A (zh) | 2019-03-15 |
CN109465113B true CN109465113B (zh) | 2020-08-18 |
Family
ID=65677816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811639714.1A Active CN109465113B (zh) | 2018-12-29 | 2018-12-29 | 一种铝土矿浮选捕收剂及铝土矿浮选方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109465113B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112844858A (zh) * | 2021-01-06 | 2021-05-28 | 河南资环检测科技有限公司 | 一种铝土矿正浮选脱硅捕收剂及其制备工艺 |
CN113751207B (zh) * | 2021-09-27 | 2023-05-12 | 中铝郑州有色金属研究院有限公司 | 一种捕收剂及其制备方法和应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53110994A (en) * | 1977-03-10 | 1978-09-28 | Agency Of Ind Science & Technol | Metal ion capturing method |
CN102489406A (zh) * | 2011-11-22 | 2012-06-13 | 中国铝业股份有限公司 | 一种处理含硫铝土矿的方法 |
CN105233991A (zh) * | 2015-09-17 | 2016-01-13 | 中国铝业股份有限公司 | 一种铝土矿反浮选同步脱硫脱有机物的方法 |
CN105344493A (zh) * | 2015-11-30 | 2016-02-24 | 中南大学 | 一种铝土矿的正浮选捕收剂 |
CN108452941A (zh) * | 2018-02-07 | 2018-08-28 | 中南大学 | 一种铝土矿的浮选方法 |
-
2018
- 2018-12-29 CN CN201811639714.1A patent/CN109465113B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53110994A (en) * | 1977-03-10 | 1978-09-28 | Agency Of Ind Science & Technol | Metal ion capturing method |
CN102489406A (zh) * | 2011-11-22 | 2012-06-13 | 中国铝业股份有限公司 | 一种处理含硫铝土矿的方法 |
CN105233991A (zh) * | 2015-09-17 | 2016-01-13 | 中国铝业股份有限公司 | 一种铝土矿反浮选同步脱硫脱有机物的方法 |
CN105344493A (zh) * | 2015-11-30 | 2016-02-24 | 中南大学 | 一种铝土矿的正浮选捕收剂 |
CN108452941A (zh) * | 2018-02-07 | 2018-08-28 | 中南大学 | 一种铝土矿的浮选方法 |
Non-Patent Citations (1)
Title |
---|
混合脂肪酸在白钨矿与萤石、方解石分离中的作用;江庆梅等;《矿冶工程》;20120415;第32卷(第2期);第2.1节 * |
Also Published As
Publication number | Publication date |
---|---|
CN109465113A (zh) | 2019-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20180036743A1 (en) | Processes for Mineral Ore Flotation in the Presence of Multivalent Metal Ions | |
EA030500B1 (ru) | Подавитель флотации рудных минералов, композиция и способ обогащения минерала | |
CN105363564A (zh) | 浮选脱除高硫铁精矿中磁黄铁矿的脱硫药剂 | |
CN109465113B (zh) | 一种铝土矿浮选捕收剂及铝土矿浮选方法 | |
CN109465114B (zh) | 一种重晶石与白云石的浮选分离方法 | |
WO2010050462A1 (ja) | 高砒素品位含銅物からの砒素鉱物の分離方法 | |
CN108499743B (zh) | 一种抑制易浮脉石矿物的组合抑制剂及其使用方法 | |
CN111468302B (zh) | 一种选矿抑制剂以及钼粗精矿的提纯方法 | |
CN111298982B (zh) | 一种火法冶炼铜熔炼渣铜金高效捕收剂及其应用 | |
CN112495590A (zh) | 一种含镁硅酸盐矿物抑制剂及其应用 | |
CN110605182B (zh) | 一种高炉布袋除尘灰浮选药剂及其应用方法 | |
CN108543631A (zh) | 一种矽卡岩型白钨矿的选矿方法 | |
CN110560269B (zh) | 一种高硫磁铁精矿梯级回收利用的选矿方法 | |
CN109604070B (zh) | 一种高硫磁铁矿石选矿用药剂及其应用方法 | |
Han et al. | Effect and mechanism of citric acid on flotation separation of siderite and hematite | |
CN113102112B (zh) | 一种氧化矿捕获剂及其制备方法和应用 | |
CN113477409B (zh) | 一种用于白钨矿浮选的含钙脉石组合抑制剂及其制备和应用方法 | |
Wang et al. | Enhanced pyrite depression through nitrogen-aerated flotation under low alkalinity conditions | |
CN114471958A (zh) | 一种分离复杂辉钼矿中黄铁矿的组合抑制剂及其分离方法 | |
CN117019404B (zh) | 提高含黄铜矿和方铅矿的铜铅硫化矿浮选分离效率的选矿方法 | |
CN104475265A (zh) | 从锰精矿中浮选去除锰铅矿的方法 | |
CN107617510A (zh) | 一种浮选药剂及其应用 | |
CN115445779B (zh) | 一种辉钼矿和方铅矿选择性浮选分离的药剂和方法 | |
CN113617533B (zh) | 一种磷块岩矿石反浮选捕收剂及其使用方法 | |
CN115007323A (zh) | 一种抑制矿物中黄铁矿浮选的方法 |
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 | ||
CB02 | Change of applicant information |
Address after: Room 1908, No. 108, Xincheng Road, Nanyuan street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Huacheng Design & Research Institute Co.,Ltd. Address before: 454350, 3 floor, office building, No.1 Road factory, Zhongzhou aluminum factory area, Fangzhuang Town, Jiaozuo, Henan. Applicant before: HENAN HUACHENG LIGHT METAL TECHNOLOGY Co.,Ltd. |
|
CB02 | Change of applicant information | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: Room 1908, No. 108, Xincheng Road, Nanyuan street, Linping District, Hangzhou, Zhejiang 311100 Patentee after: Chinalco intelligent digital dimension (Hangzhou) engineering design and Research Institute Co.,Ltd. Address before: Room 1908, 108 Xincheng Road, Nanyuan street, Yuhang District, Hangzhou, Zhejiang 311100 Patentee before: Hangzhou Huacheng Design & Research Institute Co.,Ltd. |
|
CP03 | Change of name, title or address |