CN106676206B - 有机溶剂-水联合处理从木质纤维素中分离高纯度纤维素、木素和糖的方法 - Google Patents
有机溶剂-水联合处理从木质纤维素中分离高纯度纤维素、木素和糖的方法 Download PDFInfo
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- CN106676206B CN106676206B CN201611228445.0A CN201611228445A CN106676206B CN 106676206 B CN106676206 B CN 106676206B CN 201611228445 A CN201611228445 A CN 201611228445A CN 106676206 B CN106676206 B CN 106676206B
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- water
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- lignin
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 229920005610 lignin Polymers 0.000 title claims abstract description 75
- 235000000346 sugar Nutrition 0.000 title claims abstract description 58
- 229920002678 cellulose Polymers 0.000 title claims abstract description 39
- 239000001913 cellulose Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 title description 5
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 238000000926 separation method Methods 0.000 claims abstract description 27
- 239000012046 mixed solvent Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 7
- 150000008163 sugars Chemical class 0.000 claims abstract description 6
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000006227 byproduct Substances 0.000 claims abstract description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 112
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 56
- 235000019253 formic acid Nutrition 0.000 claims description 56
- 238000005406 washing Methods 0.000 claims description 55
- 239000007787 solid Substances 0.000 claims description 41
- 238000006073 displacement reaction Methods 0.000 claims description 32
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 30
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 23
- 239000002904 solvent Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 239000000706 filtrate Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 16
- 239000012265 solid product Substances 0.000 claims description 16
- 238000000638 solvent extraction Methods 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 239000010902 straw Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000004821 distillation Methods 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 7
- 239000010742 number 1 fuel oil Substances 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000013375 chromatographic separation Methods 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 239000003456 ion exchange resin Substances 0.000 claims description 2
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 2
- 239000003350 kerosene Substances 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 150000003512 tertiary amines Chemical class 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 238000011085 pressure filtration Methods 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 1
- 238000010612 desalination reaction Methods 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 229920002488 Hemicellulose Polymers 0.000 abstract description 24
- 150000007522 mineralic acids Chemical class 0.000 abstract description 4
- 239000002028 Biomass Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 150000007529 inorganic bases Chemical class 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 235000010980 cellulose Nutrition 0.000 description 25
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 10
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 10
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 10
- 239000012071 phase Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000000835 fiber Substances 0.000 description 7
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 5
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 description 5
- 229930182830 galactose Natural products 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 241000219000 Populus Species 0.000 description 4
- 241000209140 Triticum Species 0.000 description 4
- 235000021307 Triticum Nutrition 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- 244000082204 Phyllostachys viridis Species 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003957 anion exchange resin Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920000875 Dissolving pulp Polymers 0.000 description 2
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000002029 lignocellulosic biomass Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 2
- 239000008108 microcrystalline cellulose Substances 0.000 description 2
- 229940016286 microcrystalline cellulose Drugs 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 239000004117 Lignosulphonate Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000003934 aromatic aldehydes Chemical class 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- -1 carbon ions Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229920005611 kraft lignin Polymers 0.000 description 1
- 235000019357 lignosulphonate Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000010907 stover Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K13/00—Sugars not otherwise provided for in this class
- C13K13/002—Xylose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K1/00—Glucose; Glucose-containing syrups
- C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Molecular Biology (AREA)
- Emergency Medicine (AREA)
- Compounds Of Unknown Constitution (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228445.0A CN106676206B (zh) | 2016-12-27 | 2016-12-27 | 有机溶剂-水联合处理从木质纤维素中分离高纯度纤维素、木素和糖的方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228445.0A CN106676206B (zh) | 2016-12-27 | 2016-12-27 | 有机溶剂-水联合处理从木质纤维素中分离高纯度纤维素、木素和糖的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106676206A CN106676206A (zh) | 2017-05-17 |
| CN106676206B true CN106676206B (zh) | 2021-04-20 |
Family
ID=58872047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611228445.0A Active CN106676206B (zh) | 2016-12-27 | 2016-12-27 | 有机溶剂-水联合处理从木质纤维素中分离高纯度纤维素、木素和糖的方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106676206B (zh) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109776697A (zh) * | 2017-11-13 | 2019-05-21 | 中国科学院大连化学物理研究所 | 一种分离木屑和秸秆中纤维素、半纤维素和木质素的方法 |
| CN108166293B (zh) * | 2017-12-04 | 2019-08-02 | 湖南省农业科学院 | 一种辐照-化学法联合处理植物纤维性农业废弃物的方法及其系统 |
| TWI866437B (zh) * | 2023-09-01 | 2024-12-11 | 義守大學 | 農業廢棄物改質方法 |
| CN119610312A (zh) * | 2024-12-27 | 2025-03-14 | 西安交通大学 | 一种废液全组分回收利用的高强木基材料制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2336196A1 (en) * | 2009-12-17 | 2011-06-22 | Shell Internationale Research Maatschappij B.V. | Treatment of lignocellulosic feed |
| CN103131017A (zh) * | 2011-11-22 | 2013-06-05 | 济南圣泉集团股份有限公司 | 一种从木质纤维素生物质中提取木质素的工艺 |
-
2016
- 2016-12-27 CN CN201611228445.0A patent/CN106676206B/zh active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2336196A1 (en) * | 2009-12-17 | 2011-06-22 | Shell Internationale Research Maatschappij B.V. | Treatment of lignocellulosic feed |
| CN103131017A (zh) * | 2011-11-22 | 2013-06-05 | 济南圣泉集团股份有限公司 | 一种从木质纤维素生物质中提取木质素的工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106676206A (zh) | 2017-05-17 |
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Inventor after: Tian Guoyu Inventor after: Qin Menghua Inventor after: Wang Zhaojiang Inventor after: Fu Yingjuan Inventor before: Qin Menghua Inventor before: Wang Zhaojiang Inventor before: Fu Yingjuan |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 250353 University Road, Changqing District, Ji'nan, Shandong Province, No. 3501 Patentee after: Qilu University of Technology (Shandong Academy of Sciences) Country or region after: China Address before: 250353 University Road, Changqing District, Ji'nan, Shandong Province, No. 3501 Patentee before: Qilu University of Technology Country or region before: China |