CN112408401B - 利用工业固废粉煤灰制备二氧化硅气凝胶的方法以及由该方法制备的二氧化硅气凝胶 - Google Patents
利用工业固废粉煤灰制备二氧化硅气凝胶的方法以及由该方法制备的二氧化硅气凝胶 Download PDFInfo
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- CN112408401B CN112408401B CN202011177604.5A CN202011177604A CN112408401B CN 112408401 B CN112408401 B CN 112408401B CN 202011177604 A CN202011177604 A CN 202011177604A CN 112408401 B CN112408401 B CN 112408401B
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- silicon dioxide
- fly ash
- sodium hydroxide
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 205
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 76
- 239000010881 fly ash Substances 0.000 title claims abstract description 75
- 235000012239 silicon dioxide Nutrition 0.000 title claims abstract description 61
- 239000004964 aerogel Substances 0.000 title claims abstract description 47
- 239000002910 solid waste Substances 0.000 title claims abstract description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 138
- 239000000706 filtrate Substances 0.000 claims abstract description 80
- 239000000843 powder Substances 0.000 claims abstract description 79
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000001035 drying Methods 0.000 claims abstract description 37
- 239000011240 wet gel Substances 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004965 Silica aerogel Substances 0.000 claims abstract description 24
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 23
- 238000000227 grinding Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000032683 aging Effects 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000003213 activating effect Effects 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 85
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 52
- 238000005406 washing Methods 0.000 claims description 31
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 30
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 30
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 22
- 239000000499 gel Substances 0.000 claims description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 20
- 238000005470 impregnation Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 238000007885 magnetic separation Methods 0.000 claims description 14
- 238000012986 modification Methods 0.000 claims description 14
- 230000004048 modification Effects 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 13
- 239000002956 ash Substances 0.000 claims description 13
- 238000000967 suction filtration Methods 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 12
- 238000007667 floating Methods 0.000 claims description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000002244 precipitate Substances 0.000 claims description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 7
- 238000007725 thermal activation Methods 0.000 claims description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- 238000003828 vacuum filtration Methods 0.000 claims description 6
- 238000001994 activation Methods 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000012047 saturated solution Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 8
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 22
- 239000002253 acid Substances 0.000 description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 13
- 229910052710 silicon Inorganic materials 0.000 description 13
- 239000010703 silicon Substances 0.000 description 13
- 238000002386 leaching Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 238000007171 acid catalysis Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052664 nepheline Inorganic materials 0.000 description 4
- 239000010434 nepheline Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 3
- -1 hexamethyldisilazane-ethanol-n-hexane Chemical compound 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000429 sodium aluminium silicate Substances 0.000 description 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000352 supercritical drying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/157—After-treatment of gels
- C01B33/158—Purification; Drying; Dehydrating
- C01B33/1585—Dehydration into aerogels
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/152—Preparation of hydrogels
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/152—Preparation of hydrogels
- C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/157—After-treatment of gels
- C01B33/159—Coating or hydrophobisation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
-
- 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
- C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
-
- 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
- C01P2006/12—Surface area
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- 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
- C01P2006/16—Pore diameter
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- 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
- C01P2006/32—Thermal properties
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- 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
- C01P2006/90—Other properties not specified above
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Silicon Compounds (AREA)
Abstract
Description
技术指标 | 实施例1 | 实施例2 | 实施例3 |
导热系数W/(m·k) | 0.014 | 0.012 | 0.016 |
比表面积m<sup>2</sup>/g | 705 | 820 | 620 |
接触角° | 146 | 141 | 150 |
孔径nm | 8 | 5 | 12 |
Claims (13)
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CN202011177604.5A CN112408401B (zh) | 2020-10-29 | 2020-10-29 | 利用工业固废粉煤灰制备二氧化硅气凝胶的方法以及由该方法制备的二氧化硅气凝胶 |
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CN202011177604.5A CN112408401B (zh) | 2020-10-29 | 2020-10-29 | 利用工业固废粉煤灰制备二氧化硅气凝胶的方法以及由该方法制备的二氧化硅气凝胶 |
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CN112408401A CN112408401A (zh) | 2021-02-26 |
CN112408401B true CN112408401B (zh) | 2022-07-08 |
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CN113304699B (zh) * | 2021-06-03 | 2022-09-06 | 内蒙古科技大学 | 以煤矸石与琼脂糖复合制备的气凝胶微球及其制备方法 |
CN114180985A (zh) * | 2021-10-11 | 2022-03-15 | 河南兴安新型建筑材料有限公司 | 一种超低导热蒸压加气混凝土气凝胶复合保温板及其制备方法 |
CN113856654A (zh) * | 2021-11-20 | 2021-12-31 | 福州大学 | 一种利用矿渣制备染料吸附剂的方法 |
CN114736035B (zh) * | 2022-04-28 | 2023-06-09 | 郑州圣莱特空心微珠新材料有限公司 | 一种空心玻璃微珠-气凝胶复合材料及其制备方法 |
CN115156239B (zh) * | 2022-07-15 | 2023-06-09 | 山东邦凯新材料有限公司 | 连续式危废硅胶回收处理制备高纯二氧化硅的装置及加工工艺 |
CN115161279B (zh) * | 2022-07-19 | 2024-04-19 | 杭州准星医学科技有限公司 | 用于培养胸腺类器官的培养基制备方法及胸腺类器官的培养方法 |
CN117602917B (zh) * | 2024-01-22 | 2024-03-22 | 中建八局西南建设工程有限公司 | 一种固废基复合固化剂及其制备方法 |
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WO2003070636A1 (fr) * | 2001-12-21 | 2003-08-28 | Tianrun Ye | Procede de production d'un aerogel de silice et de carbonate de sodium |
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CN101920967A (zh) * | 2010-08-20 | 2010-12-22 | 朔州市润泽投资发展有限公司 | 一种从粉煤灰中提取二氧化硅的方法 |
CN103058239B (zh) * | 2013-01-30 | 2014-10-08 | 山西大学 | 一种从粉煤灰中提取氧化铝和白炭黑的方法 |
CN104445311B (zh) * | 2014-10-30 | 2017-02-15 | 王立久 | 高含量二氧化硅质粉煤灰多联产洁净制备方法 |
CN104961135A (zh) * | 2015-07-01 | 2015-10-07 | 卓达新材料科技集团有限公司 | 二氧化硅气凝胶的制备方法 |
KR101955307B1 (ko) * | 2015-11-27 | 2019-05-30 | 주식회사 엘지화학 | 소수성의 실리카 에어로겔의 제조방법 및 이로부터 제조된 소수성의 실리카 에어로겔 |
CN106986346A (zh) * | 2016-01-21 | 2017-07-28 | 中国科学院过程工程研究所 | 一种利用粉煤灰脱硅液制备二氧化硅气凝胶的方法 |
CN106115722A (zh) * | 2016-06-23 | 2016-11-16 | 中国神华能源股份有限公司 | 一种二氧化硅气凝胶的制备方法 |
CN108607526A (zh) * | 2018-05-15 | 2018-10-02 | 芜湖市宝艺游乐科技设备有限公司 | 一种利用粉煤灰制备SiO2凝胶复合氧化亚铜吸附剂的方法 |
CN109665534B (zh) * | 2018-11-22 | 2022-05-20 | 山西大学 | 一种利用粉煤灰酸浸渣制备介孔氧化硅的方法 |
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