CN106518024A - Preparation method for activated aluminum oxide by using aluminum industry surface treatment solid waste - Google Patents
Preparation method for activated aluminum oxide by using aluminum industry surface treatment solid waste Download PDFInfo
- Publication number
- CN106518024A CN106518024A CN201610828245.2A CN201610828245A CN106518024A CN 106518024 A CN106518024 A CN 106518024A CN 201610828245 A CN201610828245 A CN 201610828245A CN 106518024 A CN106518024 A CN 106518024A
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- CN
- China
- Prior art keywords
- solid waste
- aluminum
- activated alumina
- ndustry
- surface treatment
- 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.)
- Granted
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 88
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 87
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000002910 solid waste Substances 0.000 title claims abstract description 66
- 238000004381 surface treatment Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000004094 surface-active agent Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 239000000084 colloidal system Substances 0.000 claims abstract description 5
- 238000010335 hydrothermal treatment Methods 0.000 claims abstract description 5
- 239000004411 aluminium Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 37
- 229910019142 PO4 Inorganic materials 0.000 claims description 13
- 239000010452 phosphate Substances 0.000 claims description 13
- -1 phosphate ester Chemical class 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- 229920000926 Galactomannan Polymers 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- OMDQUFIYNPYJFM-XKDAHURESA-N (2r,3r,4s,5r,6s)-2-(hydroxymethyl)-6-[[(2r,3s,4r,5s,6r)-4,5,6-trihydroxy-3-[(2s,3s,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]oxane-3,4,5-triol Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1OC[C@@H]1[C@@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)O)[C@H](O)[C@H](O)[C@H](O)O1 OMDQUFIYNPYJFM-XKDAHURESA-N 0.000 claims description 9
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 9
- 239000000194 fatty acid Substances 0.000 claims description 9
- 229930195729 fatty acid Natural products 0.000 claims description 9
- 235000002906 tartaric acid Nutrition 0.000 claims description 9
- 239000011975 tartaric acid Substances 0.000 claims description 9
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 7
- 150000004665 fatty acids Chemical class 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 7
- 229910001415 sodium ion Inorganic materials 0.000 claims description 7
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 6
- 235000017858 Laurus nobilis Nutrition 0.000 claims description 5
- 235000005212 Terminalia tomentosa Nutrition 0.000 claims description 5
- 244000125380 Terminalia tomentosa Species 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 23
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000000227 grinding Methods 0.000 abstract description 2
- 239000012798 spherical particle Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 239000002699 waste material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003837 high-temperature calcination Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ANBZTKMYPDMODS-YPKPFQOOSA-N (z)-n,n-diethyloctadec-9-enamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N(CC)CC ANBZTKMYPDMODS-YPKPFQOOSA-N 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 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 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007560 sedimentation technique Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910003158 γ-Al2O3 Inorganic materials 0.000 description 1
- 229910006636 γ-AlOOH Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/635—0.5-1.0 ml/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
- C04B35/6365—Cellulose or derivatives thereof
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/94—Products characterised by their shape
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a preparation method for activated aluminum oxide by using aluminum industry surface treatment solid waste. The preparation method of activated aluminum oxide comprises the following steps: 1) washing the aluminum material solid waste with water, and removing impurities; 2) adding a diluted hydrochloric acid solution and a triethanolamine solution to the aluminum material solid waste, adjusting the pH value, and making aluminum oxide particles recrystallized; 3) drying the aluminum material solid waste, crushing, adding a surfactant, and grinding into micron grade with a colloid mill, to obtain a material A; 4) mixing evenly the material A with cellulose acetate and a pore-enlarging agent, and placing the mixture in a disc ball rolling machine to prepare spherical particles; 5) carrying out hydrothermal treatment on the spherical particles, and washing with low-molecular alcohol, to obtain a material B; and 6) placing the material B in a drying oven, drying, then placing the obtained material in a muffle furnace, calcining, naturally cooling to room temperature, and thus obtaining the product. The prepared activated aluminum oxide has the advantages of large specific surface area and pore volume, reasonable distribution of pore diameter, and good crushing strength and catalytic activity.
Description
Technical field
The invention belongs to the preparation field of inorganic material, and in particular to prepared using aluminum i ndustry surface treatment solid waste
The method of activated alumina.
Background technology
Aluminium alloy is that consumption is only second to iron and steel and occupies second structural metallic materials, as aluminum alloy chemically property is lived
Sprinkle, in order to improve its decay resistance with decoration performance, aluminium alloy extrusions often needs surface treatment.In aluminium shape surface process
Master operation includes the processes such as defat, alkaline etching, pickling, oxidation, sealing of hole and coloring, in these operations, about 1～2% aluminum
Alloy is dissolved in tank liquor in the form of an ion.Big quantity of fluid can be taken away from each treatment trough in aluminium section bar processing procedure simultaneously, need
Cleaned with substantial amounts of water, process every square metre of aluminium section bar according to statistics and about consume 65～180L water, the aluminium profiles of 100,000 tons of 1 annual production
Material enterprise, the year water consumption for processing each operation cleaning for aluminium material surface are about 2,000,000 m3, containing a large amount of in these industrial wastewaters
Aluminium ion and the metal ion such as a small amount of zinc, nickel, copper.It is for avoiding directly discharge from causing environmental pollution, general to be adjusted using neutralization
Section and coagulant sedimentation technique are processed, and obtain wastewater sludge, and sludge is further dehydrated as Aluminiferous waste slag.Aluminium section bar gives up
Scale slag very high purity, the content of the oxide of aluminum, hydroxide and its hydrate reach more than 90%.Calculating shows, only one
Bar produces the heat-tinting production line of 20000 tons of aluminium section bar per year, annual to produce about 4000 tons of waste residue, high number.At present, China's aluminum
The waste water alkaline residue millions of tons that section bar factory produces every year, if taking the processing mode of direct landfill, cause the resources of production with
The waste of land resource, also brings secondary pollution, therefore, aluminum section industrial wastewater alkaline residues are carried out recycling have it is important
Meaning.
Activated alumina is the solid matter of a kind of porous, high degree of dispersion, with specific surface area is big, excellent adsorption, table
The characteristics of face acidity, good thermal stability, it is widely used in chemical industry as catalyst, carrier and adsorbent.Active oxidation
Aluminum as not only requiring the aperture with larger specific surface area and pore volume and reasonable layout when catalyst or carrier application,
Good mechanical strength and thermostability is should also have, especially pore-size distribution, i.e., effectively pore volume is affected most on catalytic perfomance
Greatly, but domestic existing active alumina product can reach the little of requirement, from catalytic industries require also there is big gap.Profit
With oxide of the section aluminum waste water alkaline residue rich in aluminum, hydroxide and its hydrate, activated alumina is prepared as raw material using which,
Realize that the comprehensive utilization of solid waste is significant.Chinese patent application 200410014031.9 is disclosed and utilizes aluminum
The method that section bar factory industrial silt prepares activated alumina, the method using aluminium section bar plant industrial silt as raw material, using nitric acid
Method carries out mixing pugging, makes spherical walk, drying, and sintering obtains γ-Al2O3For the activated alumina of crystalline phase, but using should
Activated alumina specific surface area prepared by method is 180～450mm2/ g, average pore size be 3～7nm and pore volume be 0.15～
0.8cm3/ g, scope fluctuation are larger, affect its catalysis activity, additionally due to nitric acid molding is used, when activated alumina is dried, meeting
Produce substantial amounts of nitrogen oxides, serious environment pollution.Separately there is Chinese patent application 201310336464.5 to disclose a kind of from containing
The method for extracting aluminium oxide in waste slag of aluminum, the method is by gangue and/or flyash and a certain amount of red mud (gangue, powder
Coal ash and red mud are Aluminiferous waste slag) and sodium carbonate mixing after be sintered, hydrochloric acid acidleach, concentrated hydrochloric acid crystal aluminum chloride, ammonia
Precipitation aluminium hydroxide, calcining obtain aluminium oxide, but in hydrochloric acid acidleach, the impurity such as Fe, Ca, Mg in Aluminiferous waste slag can be with
Al dissolutions together, the preparation of aluminium oxide is affected, complicated dedoping step is needed.
The content of the invention
It is an object of the invention to provide a kind of process is simple, low cost, product purity are high, do not produce pollution to environment
Activated alumina preparation method, the method are surface-treated solid waste as raw material using aluminum i ndustry, realize aluminium solid waste
The regeneration of thing, preparation-obtained activated alumina not only have higher catalysis activity and selectivity, also with larger
Specific surface area and pore volume and reasonable layout aperture, while with good mechanical strength and thermostability.
The present invention is by following technical solution realizing above-mentioned purpose：
The method that solid waste prepares activated alumina is surface-treated using aluminum i ndustry, is comprised the following steps：
(1) aluminum i ndustry surface treatment solid waste distilled water is cleaned 2～6 times, removing remains in aluminium solid and gives up
Sodium ion and other soluble impurities in gurry；
(2) dilute hydrochloric acid solution is added toward the aluminium solid waste that step (1) is obtained, adjust pH value to 2～4, static 1～
2min；Triethanolamine solution is added, and pH value is adjusted to 10～12, static 1～2min；
(3) the aluminium solid waste that Jing steps (2) are processed is placed in 60～80 DEG C of baking ovens and is dried, then powder
It is broken, add the surfactant of aluminium solid waste weight 1～3% to stir, using colloid mill by aluminium solid waste
Composition granule is ground to 5～50 μm, obtains material A；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, is placed in disk bowling machine and is prepared ball
Shape granule, a diameter of 2～8mm of granule；
(5) spheroidal particle for obtaining step (4), is placed in 4～6h of process in hydrothermal treatment device, and temperature is 90～100
DEG C, washing 1～2 time is carried out to spheroidal particle using low molecule alcohol then, obtains material B；
(6) material B is placed in baking oven carries out temperature programming drying, is subsequently placed in 450～800 DEG C of Muffle furnaces and is calcined
2～6h, naturally cools to room temperature, obtains final product activated alumina.
Wherein, the surfactant of step (3) is phosphate ester surfactant and fatty acid surfactant
In at least one.
Further, described phosphate ester surfactant is single Tryfac 5573, laurel alcohol ether phosphate, Petiolus Trachycarpi
One kind in stearyl alcohol phosphate ester, Polyethylene oxide monoalkyl phosphoric acid esters and Polyethylene oxide bisalkyl phosphate.
Further, the fatty acid surfactant is that fatty acyl amide or fatty acid ester non-ionic surface are lived
Property agent, such as：Lauric acid amide of ethanol, ethoxylated fatty-acid methyl ester etc..
Further, the expanding agent of step (4) by galactomannan and tartaric acid with (1～3):1 mass ratio
Composition.
Preferably, the expanding agent of step (4) by galactomannan and tartaric acid with 2:1 mass ratio composition.
Further, the consumption of described step (4) cellulose acetate for aluminium section bar waste residue weight 4～10%, expanding agent
Consumption for aluminium solid waste weight 10～30%.
Further, the cellulose acetate and expanding agent were the powder of 500～800 mesh sieves.
Further, the low molecule alcohol of step (5) be isopropanol, ethanol, the one kind in n-butyl alcohol.
Further, the temperature programming of step (6) is dried and is specially：It is 60 DEG C to be dried initial temperature, programming rate
For 60 DEG C/h, drying time is 3～5h.
The present invention is surface-treated solid waste as raw material using aluminum i ndustry, and the aluminium solid waste often contains sodium
Ion and other soluble impurities, especially sodium ion are larger to the performance impact of aluminium oxide.Preparation of the sodium ion in aluminium oxide
During it is many in the form of sodium oxide, sodium oxide can cause alumina grain thicker, and specific surface area is reduced, and crystal formation is not advised
Then, the harmful effects such as refractoriness are reduced, therefore the present invention is cleaned to aluminium solid waste using distilled water, to reduce sodium
The interference that ion and other soluble impurities are prepared to aluminium oxide.
Additionally, oxide of the aluminium solid waste rich in aluminum, hydroxide and its hydrate, the hydrogen-oxygen of wherein described aluminum
Compound is more to be present with amorphous body structure, and the specific surface and pore volume of these amorphous hydroted aluminas is less, can cause pore size distribution
Widthization, it is therefore necessary to remove.The present invention utilizes dilute hydrochloric acid and triethanolamine to carry out pH value regulation to aluminium section bar waste residue respectively, when
When pH is relatively low, tiny amorphous hydroted alumina is very fast compared with alumina dissolution in acid environment, when pH is higher, dissolving
Aluminium hydroxide can be deposited on alumina particle, promote alumina particle recrystallization, form that crystal grain is larger and uniform crystal.This
Outward, triethanolamine can be used as pH poising agents, can also form complex with aluminium atom, change the coordination structure of aluminium atom, from
And change interparticle accumulation mode, affect distribution and the size in aperture.
The present invention is mixed with aluminium solid waste with phosphoric acid ester or fatty acid surfactant, is ground, institute
γ-AlOOH, Al (OH) in oxygen atom and aluminium solid waste in the surfactant structure stated3In-OH pass through hydrogen
Bond is combined, and advantageously reduces the stress of capillary wall, it is to avoid caving in and part for interlayer occurs in high-temperature burning process
The sintering of micropore, with the hole for forming uniform pore diameter and be reasonably distributed.Additionally, surfactant is opened by reducing the surface of material
Power, makes powder body be difficult aggregation, is conducive to grinding.
Preferably, using phosphoric acid ester as surfactant, described phosphate ester surfactant is by introducing non-gold
Category element phosphor, has adjustment effect to activated alumina surface acidity, is conducive to improving the anti-caking power of activated alumina, promotees
Enter to be formed specific surface area and pore volume is larger, pore-size distribution is concentrated, even-grained activated alumina.
The present invention promotes powder body to prepare spherolite, while the effect with reaming, its Jing using cellulose acetate as adhesive
The releasable carbon dioxide of high-temperature calcination, may advantageously facilitate the formation of hole, and the space that release occupied originally, increases hole
Hold.
Using galactomannan and winestone acid blend as expanding agent, described galactomannan has resistance to the present invention
The characteristics of acid, salt tolerant, good stability, additionally, the kinetic diameter of its molecule is larger, Jing after high-temp combustion, be conducive to expanded hole
Footpath；The described releasable carbon dioxide of tartaric acid Jing high-temperature calcinations, may advantageously facilitate the formation of hole, and has certain
Caking property, can promote powder compacting, improve the intensity of alumina spherulite, improve pore structure.
As the pore size in aluminium oxide spheroidal particle is uneven, when being dried, there is capillarity, water can be caused
Divide evaporation very uneven so that macropore is easily caused granule strength drop prior to little orifice drying using rapid draing under higher temperature
Low and produce crack, the present invention adopts temperature programming drying meanss, gradually steps up temperature, and be dried in longer time
During be stirred continuously material, it is to avoid there is case above.
Compared with prior art, the invention has the beneficial effects as follows：
(1) adopt commercial alumina or aluminium hydroxide to prepare activated alumina for main material prior art more, and it is of the invention
Solid waste is surface-treated as raw material using aluminum i ndustry, the regeneration of solid waste is realized, and is avoided aluminium solid
Waste pollution environment, with great environment protection significance.
(2) activated alumina preparation method of the present invention, process is simple, low cost, product purity be high, to environment not
Pollution is produced, the activated alumina for preparing not only has higher catalysis activity and selectivity, also with larger ratio table
The aperture of area and pore volume and reasonable layout, while with good mechanical strength and thermostability.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, but the present invention is not by following examples
Record and limit.
Embodiment 1
The embodiment of the present invention 1 is surface-treated the solid waste method for preparing activated alumina using aluminum i ndustry, including with
Lower step：
(1) aluminum i ndustry surface treatment solid waste distilled water is cleaned 5 times, removing remains in aluminium solid waste
In sodium ion and other soluble impurities；
(2) dilute hydrochloric acid solution is added toward the aluminium solid waste that step (1) is obtained, adjust pH value to 3, static 1min；
Triethanolamine solution is added, and pH value is adjusted to 11, static 1min；
(3) the aluminium solid waste that Jing steps (2) are processed is placed in 60 DEG C of baking ovens and is dried, then crushed, plus
The laurel alcohol ether phosphate for entering aluminium solid waste weight 2% stirs, using colloid mill by aluminium solid waste
Grain is ground to 25 μm, obtains material A；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, wherein, the consumption of cellulose acetate
For the 6% of aluminium solid waste weight, expanding agent is by galactomannan and tartaric acid with 2:1 mass ratio composition, its use
Measure 20% for aluminium solid waste weight, in being subsequently placed in disk bowling machine, prepare spheroidal particle, granule it is a diameter of
6mm；
(5) spheroidal particle for obtaining step (4), is placed in hydrothermal treatment device and processes 5h, and temperature is 100 DEG C, then
Washing 1 time is carried out to spheroidal particle using isopropanol, obtains material B；
(6) material B is placed in baking oven carries out temperature programming drying, specially：Initial temperature is dried for 60 DEG C, heat up speed
Spend for 60 DEG C/h, drying time is 4h, and being subsequently placed in 700 DEG C of Muffle furnaces carries out calcining 4h, naturally cools to room temperature, obtains final product activity
Aluminium oxide.
Embodiment 2
The embodiment of the present invention 2 is surface-treated the method and embodiment that solid waste prepares activated alumina using aluminum i ndustry
1 is similar, and difference is that the surfactant added in step (3) is fatty acyl amide nonionic surfactant, as coconut palm
Oleic acid diethyl amide.
Embodiment 3
The embodiment of the present invention 3 is surface-treated the method and embodiment that solid waste prepares activated alumina using aluminum i ndustry
1 is similar, and difference is that the surfactant added in step (3) is the mixing of phosphoric acid ester and fatty acid surfactant
Thing, i.e., by laurel alcohol ether phosphate and lauric acid amide of ethanol with 1:1 mass ratio composition.
Embodiment 4
The embodiment of the present invention 4 is surface-treated the method and embodiment that solid waste prepares activated alumina using aluminum i ndustry
1 is similar, and difference is, the expanding agent in step (4) is by galactomannan and tartaric acid with 1:1 mass ratio composition.
Embodiment 5
The embodiment of the present invention 5 is surface-treated the method and embodiment that solid waste prepares activated alumina using aluminum i ndustry
1 is similar, and difference is, the expanding agent in step (4) is by galactomannan and tartaric acid with 3:1 mass ratio composition.
Embodiment 6
The embodiment of the present invention 6 is surface-treated the solid waste method for preparing activated alumina using aluminum i ndustry, including with
Lower step：
(1) aluminum i ndustry surface treatment solid waste distilled water is cleaned 2 times, removing remains in aluminium solid waste
In sodium ion and other soluble impurities；
(2) dilute hydrochloric acid solution is added toward the aluminium solid waste that step (1) is obtained, adjust pH value to 4, static 2min；
Triethanolamine solution is added, and pH value is adjusted to 10, static 2min；
(3) the aluminium solid waste that Jing steps (2) are processed is placed in 80 DEG C of baking ovens and is dried, then crushed, plus
The laurel alcohol ether phosphate for entering aluminium solid waste weight 3% stirs, using colloid mill by aluminium solid waste
Grain is ground to 25 μm, obtains material A；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, wherein, the consumption of cellulose acetate
For the 10% of aluminium solid waste weight, expanding agent is by galactomannan and tartaric acid with 2:1 mass ratio composition, its use
Measure 30% for aluminium solid waste weight, in being subsequently placed in disk bowling machine, prepare spheroidal particle, granule it is a diameter of
6mm；
(5) spheroidal particle for obtaining step (4), is placed in hydrothermal treatment device and processes 6h, and temperature is 100 DEG C, then
Washing 2 times is carried out to spheroidal particle using isopropanol, obtains material B；
(6) material B is placed in baking oven carries out temperature programming drying, specially：Initial temperature is dried for 60 DEG C, heat up speed
Spend for 60 DEG C/h, drying time is 5h, and being subsequently placed in 800 DEG C of Muffle furnaces carries out calcining 6h, naturally cools to room temperature, obtains final product activity
Aluminium oxide.
Comparative example 1
Comparative example of the present invention 1 is surface-treated the method and embodiment that solid waste prepares activated alumina using aluminum i ndustry
1 is similar, and difference is that isopropanol is washed to spheroidal particle used in step (5), is changed to using deionized water to spherical
Grain is washed.
The main character of embodiment of the present invention 1-6 and activated alumina obtained in comparative example 1
| Group | Specific surface area (m2/g) | Pore volume (cm3/g) | Average pore size (nm) | Crushing strength (N.-1) |
| Embodiment 1 | 382 | 0.572 | 6.47 | 220 |
| Embodiment 2 | 370 | 0.553 | 6.32 | 215 |
| Embodiment 3 | 400 | 0.635 | 6.72 | 242 |
| Embodiment 4 | 364 | 0.540 | 6.23 | 209 |
| Embodiment 5 | 375 | 0.557 | 6.30 | 214 |
| Embodiment 6 | 372 | 0.560 | 6.50 | 217 |
| Comparative example 1 | 350 | 0.492 | 5.82 | 212 |
As seen from the above table, the activated alumina for being prepared using activated alumina preparation method of the present invention, is respectively provided with big
The characteristics of pore volume, bigger serface：Pore volume >=0.5cm3/ g, specific surface area >=200m2/g.From embodiment 1-3, surface is lived
Property agent be phosphoric acid ester and fatty acid surfactant mixture, i.e., both are with 1:1 mass ratio composition, obtained active oxygen
The specific surface area of change aluminum, pore volume, average pore size, crushing strength are optimal；From embodiment 1,4,5, expanding agent is by galactomannan
Polysaccharide and tartaric acid are with 2:1 proportioning composition, obtained activated alumina performance are preferable；From comparative example 1, using low molecule
Alcohols spheroidal particle is washed after high-temperature calcination again, be conducive to hole diameter enlargement, increase specific surface area and pore volume, improve crushing
Intensity.
Test example one, activated alumina obtained in the present invention are compared with the catalytic performance of commercially available prod
With commercially available activated alumina, (Shandong Bo Yang new materials Science and Technology Co., Ltd. provides, specific surface area respectively
326m2/ g, pore volume 0.431cm3/ g, average pore size 5.32nm) and the activity for preparing of embodiment of the present invention 1-5 and comparative example 1
Aluminium oxide investigates catalyst to adopting biological isobutanol evaporation to prepare the conversion ratio and selectivity of isobutene. as catalyst.
As a result see the table below.
| Testing index | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Commercially available prod |
| Conversion ratio (%) | 95.32 | 93.68 | 98.84 | 92.73 | 94.70 | 87.12 | 82.74 |
| Selectivity (%) | 94.60 | 93.35 | 97.72 | 91.21 | 93.38 | 82.53 | 76.47 |
As seen from the above table, the activated alumina for being prepared using activated alumina preparation method of the present invention has excellent
Catalysis activity and selectivity, can make isobutanol in reaction have a higher conversion ratio, and improve the selectivity of product isobutene.,
Good catalysis activity is shown, it is especially optimal with activated alumina catalytic performance obtained in embodiment 3, it is significantly better than commercially available
Activated alumina.
The above is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred implementation is not construed as
The restriction of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch also to should be regarded as protection scope of the present invention.
Claims (9)
1. the method that solid waste prepares activated alumina is surface-treated using aluminum i ndustry, it is characterised in that including following step
Suddenly：
(1) aluminum i ndustry surface treatment solid waste distilled water is cleaned 2～6 times, removing remains in aluminium solid waste
In sodium ion and other soluble impurities；
(2) dilute hydrochloric acid solution is added toward the aluminium solid waste that step (1) is obtained, adjust pH value to 2～4, static 1～
2min；Triethanolamine solution is added, and pH value is adjusted to 10～12, static 1～2min；
(3) the aluminium solid waste that Jing steps (2) are processed is placed in 60～80 DEG C of baking ovens and is dried, then crushed, plus
The surfactant for entering aluminium solid waste weight 1～3% stirs, using colloid mill by aluminium solid waste composition granule
5～50 μm are ground to, material A is obtained；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, is placed in disk bowling machine and is prepared spherical
Grain, a diameter of 2～8mm of granule；
(5) spheroidal particle for obtaining step (4), is placed in 4～6h of process in hydrothermal treatment device, and temperature is 90～100 DEG C, so
Washing 1～2 time is carried out to spheroidal particle using low molecule alcohol afterwards, obtains material B；
(6) material B is placed in baking oven carries out temperature programming drying, be subsequently placed in 450～800 DEG C of Muffle furnaces carry out calcining 2～
6h, naturally cools to room temperature, obtains final product activated alumina.
2. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 1 prepares activated alumina, its
It is characterised by, during the surfactant of step (3) is phosphate ester surfactant and fatty acid surfactant
It is at least one.
3. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 1 prepares activated alumina, its
It is characterised by, the expanding agent of step (4) is by galactomannan and tartaric acid with (1～3):1 mass ratio composition.
4. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 1 prepares activated alumina, its
It is characterised by, the consumption of step (4) cellulose acetate is the 4～10% of aluminium solid waste weight.
5. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 1 prepares activated alumina, its
It is characterised by, the consumption of step (4) expanding agent is the 10～30% of aluminium solid waste weight.
6. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 1 prepares activated alumina, its
It is characterised by, the low molecule alcohol of step (5) is isopropanol, ethanol, the one kind in n-butyl alcohol.
7. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 2 prepares activated alumina, its
It is characterised by, the phosphate ester surfactant is single Tryfac 5573, laurel alcohol ether phosphate, palm stearin alcohol phosphoric acid
One kind in ester, Polyethylene oxide monoalkyl phosphoric acid esters and Polyethylene oxide bisalkyl phosphate.
8. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 2 prepares activated alumina, its
It is characterised by, the fatty acid surfactant is fatty acyl amide or fatty acid ester nonionic surfactant.
9. the method that utilization aluminum i ndustry surface treatment solid waste according to claim 1 prepares activated alumina, its
It is characterised by, the temperature programming of step (6) is dried and is specially：Initial temperature is dried for 60 DEG C, programming rate is 60 DEG C/h,
Drying time is 3～5h.
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| CN114149816A (en) * | 2021-11-29 | 2022-03-08 | 常州大学 | Method for preparing hydrogen-rich gas by catalyzing cracking of biomass tar by using aluminum smelting waste residues |
| CN118420321A (en) * | 2024-07-06 | 2024-08-02 | 内蒙古建亨绿材科技有限公司 | Foamed ceramic and preparation process thereof |
| CN118420321B (en) * | 2024-07-06 | 2024-10-01 | 内蒙古建亨绿材科技有限公司 | Foamed ceramic and preparation process thereof |
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