LT3803B - Process for the preparation of calcium hydrosilicates - Google Patents
Process for the preparation of calcium hydrosilicates Download PDFInfo
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- LT3803B LT3803B LTIP2040A LTIP2040A LT3803B LT 3803 B LT3803 B LT 3803B LT IP2040 A LTIP2040 A LT IP2040A LT IP2040 A LTIP2040 A LT IP2040A LT 3803 B LT3803 B LT 3803B
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- Prior art keywords
- calcium
- active
- reaction
- preparation
- cao
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- 235000012241 calcium silicate Nutrition 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 9
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000292 calcium oxide Substances 0.000 claims abstract description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 15
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract 2
- 239000002699 waste material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000009776 industrial production Methods 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000377 silicon dioxide Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 4
- 239000003463 adsorbent Substances 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 2
- 239000000969 carrier Substances 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000002594 sorbent Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- MKTRXTLKNXLULX-UHFFFAOYSA-P pentacalcium;dioxido(oxo)silane;hydron;tetrahydrate Chemical compound [H+].[H+].O.O.O.O.[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O MKTRXTLKNXLULX-UHFFFAOYSA-P 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000003513 alkali Substances 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
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- UGGQKDBXXFIWJD-UHFFFAOYSA-N calcium;dihydroxy(oxo)silane;hydrate Chemical compound O.[Ca].O[Si](O)=O UGGQKDBXXFIWJD-UHFFFAOYSA-N 0.000 description 1
- -1 chemosorbents Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Description
Siūlomas išradimas priskiriairias kalcio hidrosilikatų gavimo technologijai,kurie gali būti naudojami kaip užpil dai,adsorbentai,chemosorbentai,katalizatorių nešėjai,filtruojantys milteliai ir termoizoliacinių statybinių gaminių ir medžiagų gamyboje.The present invention relates to a technology for the production of calcium hydrosilicates, which can be used as fillers, adsorbents, chemosorbents, catalyst carriers, filter powders and in the manufacture of thermal insulation products and materials.
Žinomas kalcio hidrosilikatų gavimo būdas reaguojant kalkėms ir silicio dioksidui ekvivalentiniais kiekiais esant slėgiui ir. temperatūrai apie 200°0 (Japonijos pa raiška kr. 56 - 22812,kl, C 01 B 33/24, ±971 ) „ Gauti kalcio hidrosilikatai panaudojami kaip mineralizatoriai, iš jų gaunamas volastonitas ir pigmentai.A known process for preparing calcium hydrosilicates by reacting lime and silica in equivalent amounts under pressure and. temperature about 200 ° 0 (Japanese Application No. 56 - 22812, Cl, C 01 B 33/24, ± 971) “Calcium hydrosilicates obtained are used as mineralizers and produce volastonite and pigments.
Taip pat žinomas kalcio hidrosilikatų gavimo būdas, šarminėje terpėje,reaguojant silicio rūgščiai su kalcio oksidu temperatūroje 190 - 250°C (Vokietijos paraiška i-Tr. 19182195, kl. C 01 B 33/24, 1969 ).Also known is the preparation of calcium hydrosilicates by reacting silicic acid with calcium oxide in an alkaline medium at a temperature of 190-250 ° C (German Application i-Tr. 19182195, cl. C 01 B 33/24, 1969).
Šių kalcio hidrosilikatų gavimo būdų trūkumai šie : reakcijai vykdyti panaudojamos aukštos kokybės bei reakcin gurno medžiagos ir papildomi deficitiniai ir brangūs komponentai - natrio bei kalio, šarmai,kas gamybinėse sąlygose didina produkto savikainą.The disadvantages of these methods of obtaining calcium hydrosilicates are the following: high quality and reactive lump materials are used for the reaction and additional deficient and expensive components - sodium and potassium, alkali, which in the production conditions increase the cost of the product.
Artimiausiais pateiktam išradimui yra kalcio hidrosilikatų gavimo būdas,reaguojant kalcio oksidui su amorfiniu silicio dioksidu atmosferiniame slėgyje 25 -I00°C temperatūroj e,naudoj ant intensifikatorių 0,1 - 20 % nuo sausų medžiagų masės (Lietuvos resp. patentas Nr.3O39 <!♦ C OI B 33/24, I992).Šio būdo trūkumas tas,kad reikaLingi napildomi komponentą,! — intensifikatoriai,kaip natrio silikatas,natrio sulfatas,aliuminio oksidas,fosforo rūgštis,bario sulfatas,kas kas didina produkto savikainą.The present invention relates to a process for preparing calcium hydrosilicates by reacting calcium oxide with amorphous silica at atmospheric pressure at 25 to 100 ° C, using 0.1 to 20% by weight on dry weight basis of intensifiers (Lithuanian Patent No. 3O39 <! ♦ C OI B 33/24, I992) .The disadvantage of this method is that it requires a component to be consumed! - intensifiers like sodium silicate, sodium sulphate, alumina, phosphoric acid, barium sulphate, which increases the cost of the product.
Išradimo tikslas - praplėsti žaliavų bazę, o panaudojant pramoninės gamybos atliekas dalinai sprendžiamiThe object of the invention is to expand the base of raw materials, and partially solving industrial waste
- 2 ir ekologiniai klausimai, tuo pačiu sumažinant gaunamų kalcio hidrosilikat.ų savikainą.- 2 and ecological issues while reducing the cost of incoming calcium hydrosilicates.
Tai pasiekiama kalcio oksidui reaguojant vandeniniame tirpale su malto, turinčio S = 300 — 500 m/kg,kvarcinio smėlio silicio dioksidu„kineskopų šlifavimo atliekų silicio dioksidu,metalurgijos formavimo žemių kvarciniu komponenturAIF^ gamybos atliekų silikageliu,esant moliniam CaO/SiO2 t „y „C/S santykiui: 0,83, 1,0 bei 1,2, o vandens/kietų medžiagų santykiui V/K nuo 4,0 iki 20, laiko- intervale, nuo 1,0 iki 24 valandų, temperatūrose nuo 120° iki 25O°C„This is achieved by reacting calcium oxide in an aqueous solution with silica silica of S = 300 - 500 m / kg quartz sand silica 'Tube abrasive waste, quartz component of metallurgical forming earth r AIF ^ in the presence of molar CaO / SiO 2 t. "Y" for C / S ratios of 0.83, 1.0 and 1.2 and for water / solids V / K of 4.0 to 20, over a time interval of 1.0 to 24 hours, at temperatures from 120 ° to 25 ° C
CaO ir Si02 moliniai santykiai atitinka kalcio hidro* silikato tobermorito ir- ksonotlito C^S^Ii molinį santykį ir- tuo sąlygoja vyraujančio produkto išeigą.The molar ratios of CaO to SiO 2 correspond to the molar ratio of calcium hydro- silicate tobermorite and C x S ^ Ii of xonotlite and thus determine the yield of the predominant product.
G-amybos būdas realizuojamas taip :The G-assembly method is implemented as follows:
Komponentai, žaliavos :Components, raw materials:
Kalkės,ak tyvumasLime, activity
Perosili.cio pramoninės gamybos atliekos Vandens/kietų me džiagų santykis komponentų molinis santykis Darbo eiga :Industrial / industrial waste water / solids ratio molar ratio of components Workflow:
Esant eksperimentinio reaktoriaus - autoklavo talpai 0,63 (Silikatinių dirbinių gamykloje A/B ”Albitas” - Kaune),sudozuoti komponentų kiekiai ir vanduo supilami į reaktorių : CaO - 36,6 kg, SiO2 - 34,1 kg, vanduo - 475 1 «Įjungus maišytuvą ir elektrinį kaitinimą per 5 vai» temperatūra pakeliama iki 200°C (15 atm.).Izoterminio išlaikymo trukmė hidroterminėje ertmėje - 6 valandos.Gautas hidrosilikatinis sintezės produktas - ksonotlitas (GgS^H),nuvandeninamas,.išdžiovinamas 125 — 150 G temperatūroje laike 24 val»Koonot—1-ito milteliai gali būti naudojami kaip užpildas gumos,popieriaus,plastmasių,izoliacinių statybinių medžiagų gamyboje ir kt.In the case of an experimental reactor - autoclave capacity of 0.63 (at Silicate Works A / B ”Albitas” - Kaunas), the dosed components and water are added to the reactor: CaO - 36.6 kg, SiO 2 - 34.1 kg, water - 475 1 «Turn on mixer and heat in 5 hours» raise the temperature to 200 ° C (15 atm) .The isothermal residence time in the hydrothermal cavity is 6 hours.The resulting hydrosilicate synthesis product - Xonotlite (GgS ^ H), anhydrous,. At 150 G for 24 hours »Koonot — 1 powder can be used as a filler in rubber, paper, plastics, insulation, and more.
Pavyzdžiai:Examples:
I pavyzdys : Komponentai : CaO ir AlP^ gamybos atliekos CaO - 85%Example I: Components: 85% CaO and AlP ^ production waste CaO
Si02- 90% V/K = 6 c/s = 1,0 silikagelis. C/S = 1,0; V/K = 10; t = 120 C, trukmė = 3 vai· Vyraujantis hidrosiiikatas C-S-H(I).SiO 2 - 90% V / K = 6 c / s = 1.0 silica gel. C / S = 1.0; V / K = 10; t = 120 C, duration = 3 hours · The predominant CSH (I) hydrosilicate.
- 3 2 pavyzdys: Komponentai : CaO ir maltas kvarcinis smėlis, C/S = 0,63 j V/K = 20 j t = I75°G, trukmė = 24 vai.Vyraujantis hidrosilikatas - tobermoritas.- 3 Example 2: Components: CaO and ground quartz sand, C / S = 0.63 j V / K = 20 j t = I75 ° G, Duration = 24 hours. The predominant hydrosilicate is tobermorite.
pavyzdys: Komponentai : CaO ir PeSi dulkės. C/S = 1,0j V/K = 10 j t = 250 C, trukmė = 4 vai .Vyraujantis liidrosilikatas - ksonotlitas.example: Components: CaO and PeSi dust. C / S = 1.0j V / K = 10j t = 250C, Duration = 4 hours. The predominant hydrosilicate - xonotlite.
pavyzdys: Komponentai:· CaO ir- maltos kineskopų šlifavimo atliekos. C/S = 0,63} V/K = 10; t = I80°C, trukmė = vai .Vyraujantis hidrosilikatas - tobermoritas,.Example: Components: · CaO and ground tube grinding waste. C / S = 0.63} V / K = 10; t = I80 ° C, duration = va. The predominant hydrosilicate - tobermorite,.
pavyzdys: Komponentai: CaO ir maltos kineskopų šlifavimo atliekos. C/S = 1,0; V/K = 10}. t = 2OO°C9 trukmė = vai.Vyraujantis hidrosilikatas - ksonotlitas.Example: Components: CaO and ground tube grinding waste. C / S = 1.0; V / K = 10}. t = 2OO ° C9 duration = va. The predominant hydrosilicate - xonotlite.
Šiais būdais gauti kalcio hidrosilikatai gali būti naudojami, kaip tarpinis produktas statybinių termoizoliacinių medžiagų ir dirbinių gamyboj e,o išdžiovinti - ir kaip užpildas popieriaus, gumos, dažų, klijų ir plastmasinių dirbinių pramonėje, o taip pat kaip adsorbentas,chemosorbentas, filtruojantys milteliai, chemijos naftos,maisto pramonėje,oro-dujinių išlakų ir-skystų terpįų,tekstilės valyme ir t.t.Calcium hydrosilicates obtained by these processes can be used as an intermediate in the manufacture of constructional thermal insulation materials and articles, and as a filler in the paper, rubber, paint, glue and plastic industry, and as an adsorbent, chemosorbent, filter powder, chemical in oil, food industry, air-gaseous and liquid media, textile cleaning etc.
šiuo metodu gautą hidrosilikatinį produktą panaudojus statybinių terrnoizoliacinių plokščių garny boję, gauna mos pagrindinės charakteristikos : gaminio tankis 250 35O kg/m·^, šiluminis laidumo koeficientas 0,0b - 0,08 V/mK, stiprumas lenkiant - ne mažiau 0,3 Kirą, eksploatacinė temoeratura - nuo 75O°C iki IOOO^C.the hydrosilicate product obtained by this method, using the glazing of building thermal insulation boards, gives the main characteristics: product density 250 35O kg / m · ^, thermal conductivity coefficient 0.0b - 0.08 V / mK, bending strength no less than 0.3 Kira , operating temoerature - 75O ° C to IOOO ^ C.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LTIP2040A LT3803B (en) | 1994-09-19 | 1994-09-19 | Process for the preparation of calcium hydrosilicates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LTIP2040A LT3803B (en) | 1994-09-19 | 1994-09-19 | Process for the preparation of calcium hydrosilicates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| LTIP2040A LTIP2040A (en) | 1995-07-25 |
| LT3803B true LT3803B (en) | 1996-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LTIP2040A LT3803B (en) | 1994-09-19 | 1994-09-19 | Process for the preparation of calcium hydrosilicates |
Country Status (1)
| Country | Link |
|---|---|
| LT (1) | LT3803B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LT4609B (en) | 1998-05-08 | 2000-01-25 | Termoizoliacijos Institutas | A method for making of xonotlite heat insulators |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622812B2 (en) | 1971-05-08 | 1981-05-27 | ||
| LT3039B (en) | 1992-11-09 | 1994-09-25 | Uzdaroji Akcine Bendrove Silum | Process for preparing calcium hydrosilicates and articles of them |
-
1994
- 1994-09-19 LT LTIP2040A patent/LT3803B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622812B2 (en) | 1971-05-08 | 1981-05-27 | ||
| LT3039B (en) | 1992-11-09 | 1994-09-25 | Uzdaroji Akcine Bendrove Silum | Process for preparing calcium hydrosilicates and articles of them |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LT4609B (en) | 1998-05-08 | 2000-01-25 | Termoizoliacijos Institutas | A method for making of xonotlite heat insulators |
Also Published As
| Publication number | Publication date |
|---|---|
| LTIP2040A (en) | 1995-07-25 |
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