WO2010140918A1 - Способ получения кремнеземсодержащего связующего и изделий, материалов на основе кремнеземсодержащего связующего - Google Patents
Способ получения кремнеземсодержащего связующего и изделий, материалов на основе кремнеземсодержащего связующего Download PDFInfo
- Publication number
- WO2010140918A1 WO2010140918A1 PCT/RU2010/000022 RU2010000022W WO2010140918A1 WO 2010140918 A1 WO2010140918 A1 WO 2010140918A1 RU 2010000022 W RU2010000022 W RU 2010000022W WO 2010140918 A1 WO2010140918 A1 WO 2010140918A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silica
- binder
- products
- water
- sand
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 357
- 239000011230 binding agent Substances 0.000 title claims abstract description 158
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 131
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 title claims abstract description 40
- 239000000047 product Substances 0.000 title description 86
- 239000000203 mixture Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 70
- 239000004576 sand Substances 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000002156 mixing Methods 0.000 claims abstract description 50
- 239000002994 raw material Substances 0.000 claims abstract description 36
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims abstract description 34
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000004927 clay Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 10
- 239000011707 mineral Substances 0.000 claims abstract description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000908 ammonium hydroxide Substances 0.000 claims abstract description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical class F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 35
- 238000000465 moulding Methods 0.000 claims description 26
- 239000006185 dispersion Substances 0.000 claims description 23
- 239000011734 sodium Substances 0.000 claims description 23
- 238000000227 grinding Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 21
- 235000019353 potassium silicate Nutrition 0.000 claims description 19
- 239000010438 granite Substances 0.000 claims description 18
- 239000010451 perlite Substances 0.000 claims description 17
- 235000019362 perlite Nutrition 0.000 claims description 17
- 229910052708 sodium Inorganic materials 0.000 claims description 17
- 239000004575 stone Substances 0.000 claims description 16
- 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 claims description 14
- 238000003825 pressing Methods 0.000 claims description 14
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 13
- 239000010455 vermiculite Substances 0.000 claims description 12
- 229910052902 vermiculite Inorganic materials 0.000 claims description 12
- 235000019354 vermiculite Nutrition 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 11
- 239000006004 Quartz sand Substances 0.000 claims description 10
- -1 basalt Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 10
- 239000010458 rotten stone Substances 0.000 claims description 10
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 9
- 229910021487 silica fume Inorganic materials 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 7
- 239000006063 cullet Substances 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 6
- 150000001340 alkali metals Chemical class 0.000 claims description 6
- 235000013312 flour Nutrition 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000002956 ash Substances 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 239000013505 freshwater Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 239000013535 sea water Substances 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 235000003222 Helianthus annuus Nutrition 0.000 claims description 3
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 2
- 239000010903 husk Substances 0.000 claims description 2
- 244000020551 Helianthus annuus Species 0.000 claims 1
- 240000006240 Linum usitatissimum Species 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 9
- 239000011449 brick Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 239000003973 paint Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract description 3
- 239000003110 molding sand Substances 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000004035 construction material Substances 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 21
- 238000003860 storage Methods 0.000 description 20
- 229910004298 SiO 2 Inorganic materials 0.000 description 13
- 235000011121 sodium hydroxide Nutrition 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 235000010755 mineral Nutrition 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000004566 building material Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000012778 molding material Substances 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 229910052911 sodium silicate Inorganic materials 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 3
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 241000711969 Chandipura virus Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 241000208818 Helianthus Species 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 241000208202 Linaceae Species 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-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
- 239000007900 aqueous suspension Substances 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000011775 sodium fluoride Substances 0.000 description 2
- 235000013024 sodium fluoride Nutrition 0.000 description 2
- 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 description 1
- 229910016569 AlF 3 Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004063 acid-resistant material Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229940106189 ceramide Drugs 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 208000011117 substance-related disease Diseases 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002982 water resistant material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- 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
- C04B35/14—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 silica
-
- 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
- C04B35/16—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 silicates other than clay
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/62635—Mixing details
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
Definitions
- the invention relates to methods for producing a silica-containing binder (binder) which is widely used to obtain various building materials and products with various consumer properties, for example paints, coatings, impregnations, as well as such building products, in particular as piece materials such as bricks , wall blocks, paving, curbs, facade and floor tiles, as well as various products in the form of shells, segments, pipe rings, with increased strength and other properties, arrange paving and road monolithic coating, based on a silica binder using cheap mineral raw materials and waste from various industries.
- binder silica-containing binder
- this technology is based on the junction of concrete technology using traditional binders (cement, alkaline silicates, etc.), ceramic technology (the creation of a durable product by sintering) and a paving device.
- traditional binders cement, alkaline silicates, etc.
- ceramic technology the creation of a durable product by sintering
- a paving device In the production of a large group of building products (bricks, tiles, blocks), it can be an alternative to the production of traditional materials based on mineral binders or ceramics.
- it allows the production of high-quality materials and products using non-traditional aggregates, for example, waste products from agricultural products, to obtain various materials with higher performance characteristics (strength, frost resistance, thermal conductivity, porosity, acid and alkali resistance, resistance to evaporation, etc.) .d.) compared with those produced by traditional technologies.
- a liquid-glass binder As a rule, in domestic practice, as a liquid-glass binder, its own liquid glass is used in accordance with GOST 13078-81 or an aqueous solution of sodium silicate in accordance with GOST 13079-81.
- the technology for preparing these reagents consists in fusing a mixture of quartz sand and soda to obtain a silicate block, which is sodium silicate, and then dissolving it in autoclaves in boiling water or an alkaline solution (V.I. Korneev, V.V. Danilov. Production and use of soluble glass. JI. Stroyizdat, 1991).
- SUBSTITUTE SHEET (RULE 26) A number of methods are known from the prior art for the preparation of liquid-glass type binders for molding mixtures, based on traditional technological preparations of liquid glass.
- autoclave alkaline dissolution is subjected to amorphous silica, industrial dust being used as a source.
- USSR Na 1217551 is subjected to an autoclave alkaline treatment with an amorphous siliceous material, previously thermally prepared, a method for producing a silicate binder according to ed. St.
- USSR 1243883 provides for the joint autoclave dissolution of sodium silicate and amorphous silica in an alkaline medium, and tripoli or diatomite are used as a source of amorphous silica.
- An improvement in the autoclave technology is also known, which consists in leaching the material with a solution of sodium hydroxide in the presence of an anionic class surfactant, which intensifies the process and improves the quality of the product (ed. St. USSR N ° 1565565).
- silicic acid sols which are aqueous dispersions of colloidal silica with a silica module of 25 and higher.
- a silicon-containing binder (soluble alkali metal silicate) can be intensified and its siliceous modulus can be increased as a result of processing high-siliceous rocks with an alkaline solution containing alkali metal carbonate (SU 988767, A, 1973).
- these methods also produce a binder with a low silicate module.
- increasing the silica module is carried out by passing the solution through an electrodialyzer containing alternating anion and cation exchange membranes.
- a method for producing silica is known, according to which a liquefied solution of sodium silicate is passed through an acidic ion exchange resin to reduce the content of alkali metal ions, resulting in a molar ratio of at least 10: 1 (England patent 816233, CL 22 M, 1967).
- binders are mainly used for putties, in addition, the process of their preparation is also not without difficulties.
- the resulting product is mainly used as a binder for paints in the manufacture of paper.
- a known method of producing a silicon-containing (silica-containing) binder based on silica-containing raw materials (diatomite, 10-100 wt.% In the mixture (inorganic alkali binder and / or silicate block (RU 2064431 Cl, 07.27.1996).
- this method also does not produce a binder with a high silicate (silica) module, which does not in turn make it possible to use it for a wide purpose: to obtain a wide range of products with desired properties (low water absorption, increased water resistance, strength, acid resistance, etc. )
- a known method of producing a silica-containing binder including grinding a siliceous substance, mixing with alkali metal hydroxide and their subsequent interaction of the components of the mixture in the presence of water at 100 ° C, with the joint grinding of the components in a vibratory mixer, and subsequent interaction of the mixture with water performed in a vibrating mixer for 0.5-1.5 hours.
- a siliceous substance use for example cullet. Get a binder with a module 1-2,3- (RU 2291106, Cl, 10.01.2007).
- silica-containing binder based on an inorganic binder and silica-containing raw materials in which they are mixed in a high-speed mixer at a stirring speed of at least 2000 rpm and a vibration frequency of stirred particles of 3500-30000 Hz, while the inorganic binder is mixed with silica-containing raw materials with a particle size of from 0.5 to 2.0 mm or with pre-crushed silica-containing raw materials with a particle size of from 40 to 50 microns and water, while as an inorganic binder, use a silicate binder or alkali metal or ammonium hydroxide, use silica-containing raw materials with a moisture content of not more than 6% and SiO 2 content> 50 wt.%, use fresh, sea or mineralized water as water, and stirring is carried out over a period of 20 minutes to 10 hours in the following ratio of the components of the initial mixture, wt.%:
- an amorphous silica-containing binder is obtained with a module of 15-30 and a density of 1.2-2.2 g / cm 3 with a fluidity of water, which has high wettability (RU 2236374, 09/20/2004).
- this binder does not ensure the preservation of the necessary strength properties, water resistance and the possibility of obtaining on its basis a wide range of different materials.
- a known method of manufacturing building products based on liquid glass by preparing a mixture containing liquid glass (91-96 wt.%), Hydrofluoric (hardening accelerator) (0.7-1.5 wt.%), Filler (perlite) (3- 7 wt.% ”) And water (0.3-0.6 wt.%), Drying it to a residual moisture content of 35-40%), grinding the resulting material, molding products from it and heating them to 200-400 ° C subsequent holding them at temperature and cooling (SU 643461, 03/14/1977).
- the material obtained by this method has increased strength, but does not have sufficient water resistance (water absorption 11%, hydroscopicity 1.2%), acid resistance.
- this method it is possible to obtain a water-resistant material by first mixing liquid soluble glass with dry mineral additives (chalk, lime, calcium chloride), drying the mass, crushing, and subsequent processing. Get the material, as described in the description of this known method, with great mechanical strength.
- the method is technologically complex enough, does not allow to obtain a wide range of construction products. Water resistance data not applicable (SU 332431, 05.1935).
- a known method for producing chemically resistant concrete based on a silicate binder in which high siliceous alkaline glass of a fraction of 0.315-1.25 mm containing 8-40 wt.% High silica alkaline glass of dust fraction up to 0.315 mm, ground quartz sand with a specific surface of 4500 cm 2 is mixed / g, ordinary quartz sand with a particle size of 1.4, quartzite crushed stone fractions 5-20 mm and water. The mixture is then molded, pressed and heat treated at 187 ° C and a pressure of 12 atm for 21 hours. A material is obtained having an acid absorption of 1.5-2.0 wt.%, A compressive strength of 112.5 MPa (SU 1025688, 06/30/1983). However, using these known methods, it is not possible to obtain products having both high strength properties and increased water resistance.
- a known method of producing aluminosilicate material including the preparation of a raw mix of natural, clay material and water, molding the mixture, drying and firing.
- inorganic glaze-forming substances are additionally introduced into the raw material mixture, and the molding of the product is carried out by filling with the raw material mixture a form in which gas-permeable gaskets are installed.
- a predetermined part of the surface of the molded product is left open, and drying is carried out in an IR radiation stream with a wavelength of 5-10 ⁇ m with forced extraction.
- substances selected from the range are used as glaze-forming substances: alumina, barium oxide, iron oxide, oxide, calcium, magnesium oxide, sodium oxide, zinc oxide, silicon dioxide. Enter them into the mixture in an amount of 5-10%.
- the resulting materials have high monoporosity, but are mainly used as carriers in catalytic and sorption processes in the chemical industry (RU 2197424, 01.27.2003).
- the manufacture of heat-insulating products is as follows.
- An aqueous sodium hydroxide solution with a density of 1.3 is charged into a CA 400/300 V mixer-activator g / cm, aluminum hydroxide is gradually added in portions, a known amount of water glass with a density of 1.2 g / cm 3 is added thereto and stirred for 10-20 minutes.
- Tripoli is added and mixed with a stirrer with a speed of 400-450 rpm.
- the mixture is heated to a temperature of 65 ⁇ 5 ° C due to the interaction of chemical components, the mixture is stirred until the temperature of the mass begins to decrease.
- the finished mixture is poured into molds of various types and sizes and incubated for 24 hours, then the molds are stacked in a furnace at a temperature of 300 ⁇ 25 ° C and kept in an oven for 2.5-3.5 hours, then they are removed and a receiver (thermos) , at a temperature of 60-70 ° C, incubated for 18 hours. Then the molds are taken out and folded out. Finished products are stored.
- According to the known invention receive acid-resistant materials with increased water resistance and fire resistance, but not possessing simultaneously increased strength and thermal insulation properties.
- Another method for the manufacture of building products is known (RU 2206536, 06/20/2003), including the preparation of a molding material from a silicate binder, silica filler, hardening accelerator and water, molding from the resulting mixture of products and drying them, using a silicate binder selected from the group of liquid glass , silicate block, sodium hydrosilicate, silica gel, siliceous filler with a moisture content of not more than 20% and a dispersion of 4-50 microns and 0.1-2.5 mm, the preparation of the molding mass with a moisture content of 6-10% is carried out with intensive alternating stitching to a homogeneous state by first co-grinding the specified silicate binder with 2-5 wt.% of the specified filler to its fineness of 4-50 microns and 0.1-2.5 mm, then introducing water and adding 20.0- to the resulting activated mixture 46.5 wt.% Of the specified filler with a dispersion of 4-50 microns and 24.5-63.9 wt
- liquid glass is used, preferably in an amount of 0.5-15.5 wt.%
- a silicate block with a dispersion of 4-20 microns preferably in an amount of 3.0-4.0 wt.%
- Silica gel with a dispersion of 4-20 microns, preferably in 2.0-4.0 wt.%, and after drying, annealing is additionally carried out at 600-1000 ° C for 15-90 minutes.
- the disadvantage of this method is primarily its complexity due to the need to introduce special curing additives, the need for a stage of drying of products, as well as insufficiently high strength properties of the obtained products.
- Another method of manufacturing products based on a silica binder by preparing a molding mass from a silica binder and a silica aggregate, molding products from the obtained molding mass and subsequent heat treatment of the molded products, includes preparing a binder with a density of 1.1-2.1 g / cm "from the mixture containing an inorganic binder, a silicon-containing component (material) and water during intensive mixing in a high-speed mixer at the speed of their mixing 1500-2500 rpm, the vibration frequency of the stirred particles 2000-35000 Hz, heating to 80-90 ° C and then cooling it with stirring from 40 to 100 rpm for 10-12 hours at 15-25 0 C, the molding material is prepared by mixing 9.0–13.5 wt.% of the prepared silica binder and 86.5–91.0 wt.%
- the technical task of the claimed group of inventions is to expand the range of silica binders and products obtained on its basis, simplify the process of manufacturing them, obtain binders with a stable high silica module, reduce their cost, as well as increase the strength and other operational properties (increased water resistance, reduced moisture absorption, for example) and the expansion of the raw material base, both due to mineral raw materials and industrial waste, is cheaper ie the resulting articles.
- the stated technical problem is achieved by the method of producing a silica-containing binder based on an inorganic binder, a silica-containing component and water with intensive stirring, namely, that the mixing is carried out in the presence of hydrofluoric salts, taken in an amount of from 0.5 to 10.0 wt.%
- alkali metal or ammonium hydroxide, or a silicate bond is used as an inorganic binder, as a silica-containing component use a silica-containing component with a particle size of from 0.2 to 20.0 mm or pre-crushed to a particle size of from 40 A ° to 60 ⁇ m, selected from the group comprising silica sand or quartz flour with a moisture content of not more than 4%, quarry clays with a moisture content of more than 10%, calcined clays, loams, loamy sand, loess deposits, silica fume obtained from ferroalloy production wastes, stone processing wastes obtained
- a silica binder with a density of 1.3-2.4 g / cm 3 is first prepared (prepared) module 15-30 from a mixture containing an inorganic binder, silica-containing component, water and hydrofluoric acid salt in an amount of 0.5-10.0 wt.% based on the mixture, and with their intensive mixing in a high-speed mixer with a stirring speed of 1500-6000 rpm, a particle vibration frequency of 2000-45000 rpm, heating 80-90 ° C or when exposed to electric current with a voltage of 15-40 W and a current of 6OA, followed by cooling silica binder with constant stirring at a speed of from 40 to 100 rpm at 15-25 0 C for 10-12 hours or using air aeration at 10-20
- the preparation of the molding mass is carried out by mixing 9.0-13.5 wt.% Of the obtained silica binder and 86.5-91.0 wt.% Silica filler with a moisture content of not more than 6% and a dispersion of 4-50 microns or 60-150 microns, or 0.2- 25 mm, which is used as a variety of sand, granite, basalt, vermiculite
- a silicate binder is used, selected from the group including sodium hydrosilicates, water glass, silicate block, cullet formed during the production or use of glass, silica sol, silica gel, aluminosilicates, and fresh water, sea water, water are used as water mineralized.
- Silica-containing raw materials are used, for example, silica sand, silica flour with a SiO 2 content of up to 99 wt.%, And a moisture content of not more than 4%, silica fume obtained from ferroalloy production waste, stone processing waste obtained by sawing or grinding , for example, granite, or in the production of crushed granite, hydromica, such as used in the production of vermiculite or expanded perlite, as well as various clays (quarry with a moisture content of not more than 10%) calcined, loams, sandy loam, loess deposits.
- silica sand silica flour with a SiO 2 content of up to 99 wt.%, And a moisture content of not more than 4%
- silica fume obtained from ferroalloy production waste for example, granite, or in the production of crushed granite
- hydromica such as used in the production of vermiculite or expanded perlite, as well as various clays (quarry with a moisture
- hydrofluoric acid salt in the method according to the invention in particular, calcium fluoride, sodium fluoride, sodium silicofluoride, aluminum fluoride and others are used.
- silicate block anhydrous glassy mass of various colors in powder form or in the form of pieces from 0.1 to 25 mm in size
- waste from the production and use of window and technical glass for example, with a SiO 2 content of 71.2-72.8 wt.% as well as silica gels and silica sols
- silica gel is a metallurgical waste product having the following composition in wt.%: SiO 2 - 88.2, H 2 O - 1.7, other impurities 8.3, Fe 2 Os - 0.035, Al 2 Os - 0.16, Na 2 O - 1.86, SO 4 - 0.12, (SU 1724638, 1989) and others, for example, waste from the production of aluminum fluoride (SU 1121233, 1986).
- alkali metal hydroxides for example, sodium hydroxide is used (as it is preferable due to its lower cost in comparison with potassium hydroxide), caustic soda.
- silica-containing component in the preparation of the binder a silica-containing material with a particle size of 0.2 to 20 mm from 40 A to 60 ⁇ m is used.
- Fresh water is used as water in the preparation of the binder.
- silica-containing component in the preparation of the inorganic binder in the method according to the invention various sands (sea, river, quarry), quartz sand with a moisture content of not more than 4%, clays, for example, quarry sand with a moisture content of more than 10%, calcined clay, loam, sandy loam, are used , loess deposits, silica fume obtained from ferroalloy production wastes, waste from stone processing or grinding, for example, granite, or in the production of crushed granite, various hydromica, in particular, used in production vermiculite or expanded perlite, amorphous silica-containing mineral raw materials, for example, diatomite, tripoli.
- a silica-containing material with a particle size of 0.2-20.0 mm or from 40 A to 60 ⁇ m is used as a silica-containing component in the preparation of the binder.
- silica-containing aggregate in the preparation of the molding material in the method according to the invention, various sands (river, marine, quarry), granite, basalt, vermiculite, expanded perlite sand, expanded clay, hydromica, metallurgical slag, coal slag and ash, expanded clay production waste are used, stone and stone processing, a mixture of amorphous silica with wood processing waste (sawdust, shavings) or agricultural processing waste, such as, in particular, a fire from processing flax, straw, and shel ha sunflower and others.
- various sands (river, marine, quarry), granite, basalt, vermiculite, expanded perlite sand, expanded clay, hydromica, metallurgical slag, coal slag and ash, expanded clay production waste are used, stone and stone processing, a mixture of amorphous silica with wood processing waste (sawdust, shavings) or agricultural processing waste, such as, in particular, a fire from processing flax, straw, and shel ha sunflower
- silica-containing aggregate with different dispersion for example, with a dispersion of 4-50 microns or
- the method is characterized by the fact that, as an inorganic binder, alkali metal or ammonium hydroxide is used, a silicate binder selected from the group including sodium hydrosilicates, sodium, potassium, glass, silicate block, glass cullet formed during the production or use of glass (window, technical), silica sols, silica gels, aluminosilicates.
- a silicate binder selected from the group including sodium hydrosilicates, sodium, potassium, glass, silicate block, glass cullet formed during the production or use of glass (window, technical), silica sols, silica gels, aluminosilicates.
- the binder is used as an inorganic binder:
- sodium hydrosilicates in the form of semi-aqueous sodium hydrosilicate (Na 2 SiO 2 Os-O 3 SH 2 O), three-aqueous hydrosilicate (Na 2 SiO 2 O 5 -CH 2 O), nine-water hydrosilicate (Na 2 SiO 2 O 5 -9H 2 O ), sodium hydro polysilicate (Na 2 O 18SiO 2 -4H 2 O), sodium hydrometasilicate (monovalent (Na 2 SiO 3 -H 2 O, two-, three-, four-water and further, up to the fourteenth sodium hydrometadivicate);
- - silicate block anhydrous glassy mass of various colors in powder form or in the form of pieces from 0.05 to 10 mm. Get it, for example, by fusing a mixture of quartz sand with soda or potam (soda can be replaced with sodium sulfate) until a homogeneous liquid The melt discharged from the furnace, when slowly cooled in air, solidifies in the form of a solid monolith.
- silica gels sica sols
- colloidal silica with high values of silica modulus (with a module of 25 and above).
- silica gel as a metallurgical waste
- silica gel (as a metallurgical waste) of the following composition can be used: (SiO 2 - 88.2 wt.%, H 2 O - 1.7 wt.%, Pp-8.3 wt.
- silica gel which is a waste product of the production of aluminum fluoride (SU 1121233).
- silicate alkaline glass for example, with a SiO 2 content of 71.2-72.8 wt.% (SU 1112724).
- the method uses a dry silicate binder (in the form of hydrated powders, amorphous and crystalline), crushed with a dispersion of from 40 A to 60 microns.
- aluminosilicates which use natural mineral raw materials, for example, clays, loams, sandy loam, burnt or unburnt clays, loess deposits, clay bricks and industrial wastes, for example, metallurgical slags and ashes, and CHP slags formed as a result of burning coal (black or brown, or peat), with an Al content (in the form of oxides or salts) of more than 0.5% (by weight of dry matter).
- silica-containing binder in the implementation of the method according to the invention, various silica-containing components (materials) with a SiO 2 content of at least 40% are used, such as, for example, silica sand, silica flour, SiO 2 content up to 99 wt.%, Ditomite, tripoli , marshalite (amorphous silicas), flasks, for example, of chemical composition: SiO 2 - 69-89, Al 2 O 3 - 3.94-11.6, TiO 2 - 0.16-0.55, Fe 2 O 3 + FeO- 1.44-3, 6, CaO - 0.2-0.9, MgO - 0.5-1.2, Na 2 O - 0.08-1.1, K 2 O -0.7- 1.53, MnO 5 Ol (% by weight of dry matter), silica fume obtained industrially, waste from stone processing, e.g. imer, granite, silica-containing minerals formed as a result of volcanic activity (volcanic slag, pu
- the humidity of the silica-containing material (component for the preparation of an inorganic binder), as a rule, for example, when using crushed material, for example, quartz sand, is not more than 6%, when using, for example, quarry clay it is more than 6% to 100%, and when the use, for example, of sawing or grinding waste of granite with a moisture content of more than 20%, up to an aqueous suspension.
- the fractional composition (dispersion) of a silica-containing material used as a silica-containing component in the preparation of a silica-containing binder in the method according to this invention is in the range from 5 ⁇ m (waste sawing and grinding of granite, hydromica for the production of perlite sand of the Magadan deposit) to 20 mm (brick fight, expanded clay production waste, cullet); silica-containing materials, such as various sands, waste, screening during the production of crushed granite, are also preliminarily crushed to a size of less than 60 microns.
- the mixing time of the silicon-containing material component to obtain a binder with an inorganic binder is selected, for example, 10-30 minutes when using material with fineness of less than 30 mm (expanded clay production waste, cullet, brick fight, tuffs, amorphous silicas, tripoli, etc.), as well as for pre-ground material with a fineness of 60 microns or less (for example, quartz sand); and for silica-containing material without prior grinding (various sands, granite screenings, metallurgical slag, coal ash and slag of the CHP plant) it is 3-12 hours.
- silica-containing component in the preparation of the binder is carried out at 80-90 0 C, and this temperature is maintained throughout the entire preparation of the binder; mixing is carried out in the presence of hydrofluoric acid salt (CaFg, NaF, AlF 3 , sodium silicofluoride and others). Subsequent cooling of the prepared binder is also carried out with constant stirring at a speed of 40 to 100 rpm, for example, using a propeller-type device or using air aeration for 8-12 hours at an ambient temperature of 10-20 ° C. under such conditions, the preparation of the binder is an increase in the density of the binder.
- hydrofluoric acid salt CaFg, NaF, AlF 3 , sodium silicofluoride and others
- a binder prepared using silica sand as a silica-containing component and sodium hydroxide as an inorganic binder first has a density of 1.63 g / cm, and after cooling under the above conditions, its density increases to 1.71 g / cm 3 .
- Mixing the inorganic binder with a silica-containing component in the preparation of the binder used in the method according to the invention is carried out in various mixers at a mixing speed of 2000-45000 Hz.
- a binder is obtained with a density of 1.3-2.4 g / cm 3 , which has a fluidity of water, a high wetting ability, and does not coagulate with the further addition of a silica-containing aggregate (ground sand, vermiculite, perlite sand, etc.), i.e. . it is uniformly distributed over the entire volume of the mixture-molding material, which contributes to the production of high-strength products.
- a silica-containing aggregate ground sand, vermiculite, perlite sand, etc.
- a silica-containing aggregate with a dispersion in the range from 4OA to 25 mm is used, in particular quartz sand - a fraction with a dispersion of 4-50 microns or a fraction with a dispersion of 0.4-2.5 mm, or a fraction with a dispersion of 60-120 microns or various mixtures thereof.
- a method of obtaining a silica binder, which is one of the inventions of the claimed group, is as follows. Example 1
- Silica-containing raw materials are loaded into a high-speed rotor-stator mixer, for example, sand (pre-crushed silica-containing raw materials) with a particle size (dispersion) of from 4OA to 60 ⁇ m; silicate bond or sodium hydroxide (in solid state or in the form of a solution) and water are also loaded there (fresh, marine or mineralized) and a hydrofluoric acid salt, for example calcium fluoride (CaF 2 ).
- a mixing speed of at least 1,500 rpm and a vibration frequency of the mixing particles of 2000-45000 Hz, for example, within 10 minutes - 0.5 hours or 8-12 hours.
- Mixing can also be carried out under the influence of an electric field with a voltage of 15-40 W and a current strength of 60A.
- the mixture is cooled with constant stirring at a speed of 40 to 100 rpm at 15-25 ° C for 10-12 hours or using air aeration at 10-20 0 C for 6-11 hours to obtain a binder with a density 1.3-2.4 h g / cm, which is a homogeneous homogeneous product having a fluidity similar to water, with a silicate module of 25.0.
- silica-containing binder uses fresh, for example industrial, water, sea water, mineralized water, which allows the method according to the invention to be carried out in various environmental conditions, as well as to utilize various technical water, thereby improving the surrounding ecology.
- various grinding devices and various mixing devices are used, which provide preliminary grinding of the silica-containing raw materials to the required predetermined size and effective mixing of the initial mixture.
- roller and disk mills various dissolvers, ball mills, bissors; high-speed mixers - disk mixers, disk-propeller and disk-paddle mixers, mixers with an anchor mixer, high-speed rotor-stator mixer, planetary mixer, screw, planetary mixers with three-dimensional movement of spiral-tape working bodies, providing mixing at a mixing speed of at least 1500 rpm and the oscillation frequency of the mixed particles 2000-45000 Hz.
- the preferred mixing time is 8-10 hours, in the case of using pre-crushed silica-containing raw materials, the mixing time with inorganic binder and water is from 10 minutes to 0.5 hours.
- various grinding devices and various mixing devices are used, which provide both preliminary grinding, if necessary, of silica-containing raw materials to the desired specified size, and effective mixing of the initial mixture in the preparation of an inorganic binder and then mixing it with a placeholder.
- Such devices include roller, shock-centrifugal and disk mills, various dissolvers, ball mills, bissors, forced-action mixers, disk mixers, disk-propeller and disk-paddle mixers, anchor mixers, high-speed rotor-stator mixer, planetary mixers, screw, planetary mixers with three-dimensional movement of spiral-tape working bodies, providing mixing at a mixing speed of from 1500 rpm to 2500 rpm
- various pigments and dyes of inorganic and organic origin alkali-resistant and lightfast
- inorganic and organic origin for example, titanium dioxide, zinc, iron, ferrophosphoric pigments, chalk, ocher, crown orange, chromium oxide, mummy, red iron, Mars red and brown, ultramarine, etc.
- the pigments are also introduced in powder form in an amount of preferably up to 5%.
- the molding of products is carried out, for example, by the method of semi-dry pressing directly on pallets (on presses equipped with a dosing and feeding system for pallets) or without pallets with a removable mechanism for feeding raw materials to the conveyor, for example, with a pressing force of 150 to 600 kg / cm 2 .
- the molding of products by the method according to the invention can also be carried out, for example, by casting (vibration casting), vibrocompression or surface vibration compaction.
- a silica-containing binder is prepared based on a mixture containing an inorganic binder, water, a silica-containing component (material).
- Silica-containing raw materials such as sand, with a particle size (dispersion) of 0.2 to 20 mm or a grinder (ball mill) pre-ground silica-containing raw materials with a particle size (dispersion) of 4OA to 60 ⁇ m are loaded into a high-speed rotor-stator mixer; silicate bond or sodium hydroxide (in solid state or in the form of a solution) and water (fresh, marine or mineralized) are also loaded there.
- Intensive mixing of this mixture is carried out when heated to 90 ° C and at a stirring speed of at least 1500 rpm and an oscillation frequency of the mixing particles of 2000-45000 Hz for a time sufficient to achieve the required density of 1.47 g / cm 3 , for example 10- 30 minutes or 1-8 hours.
- the mixture is subjected to shock-shear (deformation) and a homogeneous homogeneous product is obtained.
- the prepared binder is cooled in a container with constant stirring at a stirring speed of 100 rpm for 10 hours at 15-25 ° C.
- the obtained inorganic binder has a density after cooling of 1.57 g / cm 3 .
- the molding mass is prepared by mixing in a planetary mixer 9.0 wt.% Of the obtained binder and 91.0 wt.% Silica-containing aggregate, in particular a mixture of amorphous silica (tripoli) with a fineness of 50 ⁇ m with sawdust when they are contained in a mixture of 5- 15 wt.%. Then carry out the final homogenization of the molding material (mixture), by further mixing in a mixer, for example, a screw type. The resulting molding material is fed to a press, where directly on pallets semi-dry pressing of products with a force of 2.5-5 kg / cm 2 is carried out, and then the products are heat-treated at 90 ° C. Get heat-insulating building products having the properties shown in Table 2.
- Products are obtained using inland sand as a filler of a silica-containing and silica-containing component (material) in the preparation of an inorganic binder.
- An example implementation of the method according to the invention is illustrated using an exemplary production flow chart (see drawing in Fig. 1).
- Sand is delivered to production by road or rail, which depends on the distance of its delivery to the place of production, production volume and transportation cost.
- Unloading of sand is carried out in the receiving hopper 1, equipped with a ripper 2, which ensures the destruction of lumps, the formation of which is possible especially in winter, and a uniform supply of sand to the conveyor 3, feeding sand to the elevator 4.
- Elevator 4 sand is loaded into the receiving hopper 5 to the conveyor 6 s a system of unloading knives, which ensures uniform distribution of sand over the area of the sand storage warehouse 7.
- a feeding system for drying 8 for example, with a clamshell crane, sand is fed into the drying drum 10 s receiving hopper 9, which provides uniformity and continuity of its receipt by the drying drum.
- sand drying occurs, but also possible organic inclusions, for example, shells or algae, burn out.
- sand passes through a hopper 11 into a sieve system 12, where larger fractions, for example, pebbles, are removed from the sand.
- the resulting screening conveyor 13 is sent to the dump. Further screening can be used as coarse aggregate in the manufacture of any product, such as blocks, as a bedding on roads or used for other purposes. Dry sand with a moisture content of not more than 6%, the screened sand is conveyed by the conveyor 14 to the storage hopper 15 for storage and further distribution along the production line.
- sand is supplied to the grinder 17, for example, a centrifugal mill, in which it is crushed to the required dispersion with separation into fractions in classifiers, for example, fractions of 10-30 ⁇ m and 60-120 ⁇ m.
- the mill is equipped with an air filter, for example, a bag filter.
- a fraction of 1-30 ⁇ m is partially fed to the binder preparation department, and by the feeder 24 to the bunker-accumulator of crushed sand 25, the charge preparation department.
- crushed sand is stored in a raw material warehouse 21, which consists of containers for crushed sand, water and an inorganic sodium hydroxide binder.
- the warehouse can be made in various versions: in the form of a single block system with a dosing device for dry and liquid components and feeding them to the mixer 22 at the same time or as separate containers equipped with independent dispensers and systems for feeding components to the mixer 22 for preparing the binder.
- the mixer 22 consists of a direct mixing device, for example, a rotary pulsation apparatus, a container for cooling the binder, and a storage container for the binder 27 with a dispenser and a system for supplying it to the mixer 29 for preparing the raw material charge.
- the cooling capacity of the binder and the storage hopper are equipped with devices that ensure constant mixing of the binder, for example, propeller type or air aeration.
- the preparation of the binder is carried out in accordance with the method for preparing the silica-containing binder described in this application: at a stirring speed of 1500 rpm, heating to 80 ° C, a vibration frequency of the mixed particles of 45000 Hz, cooling with stirring at a speed of 100 rpm at 25 0 C.
- the hopper 26 equipped with a dispenser. From the silos 25 of crushed sand and 26 of pure sand, through the batchers, these components are sent to a conveyor 28, which feeds them to the preliminary mixer of the mixture 29, for example, of a planetary type, in which they are mixed until a homogeneous dry mass is obtained. Then into the mixer 29 through the dispenser and the feed system of the hopper 27 is fed binder and it is mixed with dry components to obtain a homogeneous mass, in which there are small lumpy inclusions.
- the mixture is sent to the mixer 31 of the final preparation, for example a screw type.
- the finished homogenized mixture is fed to the storage hopper 32.
- the finished mixture is fed to the press 33, equipped with a system for its dosage and supply of pallets. Pressing of products with a force of 200-400 kg / cm 2 is carried out directly on pallets, which are conveyed by the conveyor 34 to the heat treatment department, into the continuous furnace 35. in which at a temperature of 750-950 0 C the products are fired without preliminary drying.
- the energy carrier can be used gaseous, liquid fuel, infrared radiation or microwave radiation.
- the pallets with finished products by conveyor 36 are fed to the baler 37, where the products are stacked on pallets and sent to the finished goods warehouse 39. Pressed pallets released by the conveyor 38 from the finished products are returned to the press equipment.
- Table 3 presents the options for implementing the method according to the invention according to example 3 and the properties of the resulting products.
- Example 4
- the method according to the invention is carried out using a silica-containing component in the preparation of an inorganic binder of aluminosilicates.
- aluminosilicate raw materials for example, clay with a particle size (dispersion) of less than 1 ⁇ m
- a mixer with water fresh, marine or mineralized
- Mixing is carried out for a time sufficient to obtain a homogeneous (homogeneous) aqueous suspension, for example 5-20 minutes, in mixers with a rotational speed of the mixing device, for example from 1500 to 2000 rpm.
- a silicate bond or sodium hydroxide in solid or soluble form
- the mixture is subsequently mixed while heating to 90 ° C, a stirring speed of 1500 rpm, an oscillation frequency of the mixed particles of 2000 Hz.
- the binder is cooled with stirring at a stirring speed of 100 rpm for 10 hours at 15-25 ° C.
- the ratio between the inorganic binder and the aluminosilicate material is 13.5 wt.% And 86.5 wt.%, Respectively.
- Get a binder with a density of 1.75 g / cm Further, analogously to example 1, the molding material is prepared. The products are molded and fired at 750-950 0 C. Thermal insulating products with increased fire resistance, strength properties, acid resistance are obtained.
- amorphous silica for example, tripoli or industrial silica fume.
- the molding force is limited to small values, for example, with a force of 1 kg / cm, heat-insulating products with a compressive strength of up to 10 kg / cm and a thermal conductivity of 0.03 to 0.051 W (m * K) are obtained, which is better than similar indicators of known mineral wool heaters.
- the heat treatment temperature is limited to 400-600 ° C.
- the products When using fillers having the properties of increasing the volume of products after pressing, for example wood sawdust, the products must be kept under load for 5-15 minutes, then sent to heat treatment. Since this filler is classified as combustible, the processing temperature is limited, for example, to 90 ° C, and the heat treatment time is 1–2 hours.
- Coloring of products is carried out, if necessary, by introducing pigments, for example, of the oxide type or in the form of alkali metal salts, into the molding mass (mixture) or inorganic silicon-containing binder.
- tables 4, 5 and 6 show the properties of products obtained by the method according to the invention using expanded clay (table 4), perlite (table 5) and vermiculite (table 6) as siliceous aggregates.
- Using the semi-dry pressing method allows you to quickly switch to production from one product to another by replacing the dies and punches on the press equipment, adjusting the pressing force and, if necessary, the temperature regime of processing. For example, when switching production from brick to paving or wall blocks, it is enough to replace the matrix with the punch, because the composition of the charge, the pressing force and the heat treatment mode remain the same.
- this technology allows you to create a material with strength characteristics from 5 kg / cm 2 to 40 kg / cm 2 and a thermal conductivity from 0.030 to 0.051 W / (m * K ) Industrial applicability.
- tables 1-6 which show other examples of the method for producing a silica binder according to one of the inventions of the claimed group and its properties (table 1), as well as examples of the method for producing building materials and products, which is another invention of the claimed group of inventions, based on silica binder and data on the properties of the resulting products.
- the data given in the tables 1-6 indicate the achievement of the technical task of the claimed group of inventions, i.e. about obtaining an inexpensive, environmentally friendly binder with good properties that allow you to use it, in particular, to obtain a wide range of environmentally friendly building materials and products with high strength properties, low moisture absorption, etc.
- the binder obtained by the claimed method is used to obtain various building materials and products by subsequent molding, mix it with various target additives, such as fillers, curing additives, pigment dyes and other additives, depending on the specific application of the product by simple compression molding or by the shock-press method, then the molded products are dried, if necessary, heat treated (firing) at 200-1200 ° C.
- Binder is also used for the preparation of various paints, impregnations, putties, fire retardant coatings and products. Products and coatings with its use are water resistant, have little moisture absorption (almost 0%), are acid resistant, weather resistant, and have good strength properties.
- Fig. 1 a diagram of the organization of production (Fig. 1) of products using a silicon-containing binder (“ceramic-ceramide” technology) and a list of items indicated in this diagram. A list of the main technological areas and the equipment included in them, indicated in the diagram (Fig. 1). Reception Department:
- charge preparation department 22 - a set of equipment for preparing a binder with a storage and supply system for charge preparation departments; charge preparation department:
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Abstract
Description
Claims
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RU2009121120/05A RU2408633C1 (ru) | 2009-06-03 | 2009-06-03 | Способ получения кремнеземсодержащего связующего |
RU2009121120 | 2009-06-03 | ||
RU2009121343/03A RU2443660C2 (ru) | 2009-06-05 | 2009-06-05 | Способ получения строительных изделий на основе кремнеземсодержащего связующего |
RU2009121343 | 2009-06-05 |
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CN109092514A (zh) * | 2018-07-25 | 2018-12-28 | 信阳核工业新材料有限公司 | 一种高流动性石英粉的制备方法 |
CN111346615A (zh) * | 2020-03-11 | 2020-06-30 | 江苏长三角环境科学技术研究院有限公司 | 一种用于水泥窑协同处置固废、污染土及底泥的预处理添加剂及使用方法 |
CN112500098A (zh) * | 2020-12-14 | 2021-03-16 | 重庆市能容建筑科技有限公司 | 一种建筑用的液态阻水渗透材料及其制备方法 |
CN114163255A (zh) * | 2021-11-30 | 2022-03-11 | 光合生物科技(深圳)有限公司 | 一种用于盆栽植物的铺面石及其制备方法 |
CN115156239A (zh) * | 2022-07-15 | 2022-10-11 | 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 |
CN117381942A (zh) * | 2023-10-10 | 2024-01-12 | 广州市恒宏生态建材有限公司 | 一种环保耐磨的无机生态石的制备工艺 |
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CN109092514A (zh) * | 2018-07-25 | 2018-12-28 | 信阳核工业新材料有限公司 | 一种高流动性石英粉的制备方法 |
CN111346615A (zh) * | 2020-03-11 | 2020-06-30 | 江苏长三角环境科学技术研究院有限公司 | 一种用于水泥窑协同处置固废、污染土及底泥的预处理添加剂及使用方法 |
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CN112500098A (zh) * | 2020-12-14 | 2021-03-16 | 重庆市能容建筑科技有限公司 | 一种建筑用的液态阻水渗透材料及其制备方法 |
CN114163255A (zh) * | 2021-11-30 | 2022-03-11 | 光合生物科技(深圳)有限公司 | 一种用于盆栽植物的铺面石及其制备方法 |
CN114163255B (zh) * | 2021-11-30 | 2023-05-12 | 光合生物科技(深圳)有限公司 | 一种用于盆栽植物的铺面石及其制备方法 |
CN115156239A (zh) * | 2022-07-15 | 2022-10-11 | 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 |
CN117381942A (zh) * | 2023-10-10 | 2024-01-12 | 广州市恒宏生态建材有限公司 | 一种环保耐磨的无机生态石的制备工艺 |
CN117381942B (zh) * | 2023-10-10 | 2024-05-03 | 广州市恒宏生态建材有限公司 | 一种环保耐磨的无机生态石的制备工艺 |
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