RO86665B1 - Process for preparing porous crystalline aluminosilicates of zsm-5 type zeolithe - Google Patents
Process for preparing porous crystalline aluminosilicates of zsm-5 type zeolitheInfo
- Publication number
- RO86665B1 RO86665B1 RO110123A RO11012383A RO86665B1 RO 86665 B1 RO86665 B1 RO 86665B1 RO 110123 A RO110123 A RO 110123A RO 11012383 A RO11012383 A RO 11012383A RO 86665 B1 RO86665 B1 RO 86665B1
- Authority
- RO
- Romania
- Prior art keywords
- zsm
- porous crystalline
- crystalline aluminosilicates
- al2o3
- sio2
- Prior art date
Links
- 229910000323 aluminium silicate Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 239000004115 Sodium Silicate Substances 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 238000002425 crystallisation Methods 0.000 abstract 2
- 230000008025 crystallization Effects 0.000 abstract 2
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910021536 Zeolite Inorganic materials 0.000 abstract 1
- 230000005587 bubbling Effects 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 238000001027 hydrothermal synthesis Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000010457 zeolite Substances 0.000 abstract 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Catalysts (AREA)
Abstract
Inventia se refera la un procedeu de preparare a aluminosilicatilor cristalini porosi de tip zeolit ZSM-5, prin sinteza hidrotermala din solutii de silicat de sodiu si sulfat de aluminiu, în prezenta unui agent de cristalizare, procedeu conform caruia folosindu-se ca materii prime solutie de silicat de sodiu tehnic cu continut de fier de maxim 0,5 mg Fe/ml si solutie de sulfat de aluminiu, acidulate cu acid sulfuric concentrat, acestea sunt supuse gelifierii în cantitati corespunzatoare obtinerii unui amestec de reactie avînd compozitia: SiO2 : Al2O3 = 70...90; Na2O : SiO2 = 0,1...1,0; H2O : Al2O = 3000...3200; în gelul astfel rezultat introducîndu-se apoi un agent de cristalizare, alcool metilic, fie la temperatura obisnuita, în stare lichida, fie la cald, în stare de vapori prin barbotare, în raport de CH3OH : Al2O3 = 70...160; cristalizarea avînd loc în decurs de 15...40 h, la temperatura de 120...200 degree C.The invention relates to a process for the preparation of ZSM-5 zeolite porous crystalline aluminosilicates by hydrothermal synthesis of sodium silicate solutions and aluminum sulphate in the presence of a crystallization agent, the process of which is used as the starting material solution of technical grade sodium silicate with iron content of max. 0.5 mg Fe / ml and aluminum sulphate solution, acidified with concentrated sulfuric acid, these are subjected to gelling in quantities corresponding to a reaction mixture having the composition: SiO2: Al2O3 = 70 ... 90; Na2O: SiO2 = 0.1-1.0; H2O: Al2O = 3000 ... 3200; in the resulting gel there is then introduced a crystallizing agent, methyl alcohol, either at the usual temperature, in the liquid state or hot, in the vapor bubbling state, in relation to CH3OH: Al2O3 = 70-160; crystallization takes place within 15 ... 40 hours at a temperature of 120 ... 200 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO110123A RO86665B1 (en) | 1983-02-23 | 1983-02-23 | Process for preparing porous crystalline aluminosilicates of zsm-5 type zeolithe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO110123A RO86665B1 (en) | 1983-02-23 | 1983-02-23 | Process for preparing porous crystalline aluminosilicates of zsm-5 type zeolithe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86665A2 RO86665A2 (en) | 1985-04-17 |
| RO86665B1 true RO86665B1 (en) | 1985-05-03 |
Family
ID=20112723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO110123A RO86665B1 (en) | 1983-02-23 | 1983-02-23 | Process for preparing porous crystalline aluminosilicates of zsm-5 type zeolithe |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86665B1 (en) |
-
1983
- 1983-02-23 RO RO110123A patent/RO86665B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86665A2 (en) | 1985-04-17 |
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