ES470368A1 - Procedimiento para preparar zeolita a - Google Patents
Procedimiento para preparar zeolita aInfo
- Publication number
- ES470368A1 ES470368A1 ES470368A ES470368A ES470368A1 ES 470368 A1 ES470368 A1 ES 470368A1 ES 470368 A ES470368 A ES 470368A ES 470368 A ES470368 A ES 470368A ES 470368 A1 ES470368 A1 ES 470368A1
- Authority
- ES
- Spain
- Prior art keywords
- mineral
- calcined
- aqueous mixture
- candita
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000010457 zeolite Substances 0.000 title abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 6
- 239000011707 mineral Substances 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- 229910021536 Zeolite Inorganic materials 0.000 abstract 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2815—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L)
- C01B33/283—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L) from a reaction mixture containing at least one aluminium silicate or aluminosilicate of a clay-type, e.g. kaolin or metakaolin or its exotherm modification or allophane
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Procedimiento para preparar zeolita A, a partir de un mineral del grupo de la candita, caracterizado porque comprende las etapas: a) calcinar un mineral del grupo de la candita que está sustancialmente libre de agregados y que prácticamente no tiene asociado con el mismo ningún hierro superficial n9i más de 0,5 % en peso de hierro intersticial, efectuándose la calcinación a una temperatura del orden de 550 a 925ºC y durante un tiempo tal que la pérdida tras ignición durante 2 horas a 1.000ºC de una muestra del mineral calcinado sea inferior a 1 % en peso, para formar un mineral de candita calcinado; b) preparar una mezcla acuosa del mineral de candita calcinado y una solución acuosa de hidróxido sódico de concentración no inferior a 5 M aproximadamente, es decir no inferior a 5 molar aproximadamente, siendo tales las proporciones de mineral de candita calcinado e hidróxido sódico en la mezcla acuosa que la relación molar Na2O/SiO2 sea del orden de 0,5 a 1,5; c) calentar la mezcla acuosa a una temperatura de 60 a 100ºC durante un tiempo de 2 a 8 horas, para formar la zeolita A deseada; y d) separar zeolita A cristalina de la mezcla acuosa.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2304977A GB1603084A (en) | 1977-05-31 | 1977-05-31 | Zeolites |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES470368A1 true ES470368A1 (es) | 1979-01-16 |
Family
ID=10189284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES470368A Expired ES470368A1 (es) | 1977-05-31 | 1978-05-31 | Procedimiento para preparar zeolita a |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1101825A (es) |
| DE (1) | DE2823927C2 (es) |
| ES (1) | ES470368A1 (es) |
| FR (1) | FR2392934A1 (es) |
| GB (1) | GB1603084A (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2125390B (en) * | 1982-08-16 | 1985-12-24 | Ici Plc | Preparation of zeolites |
| US5089056A (en) * | 1989-04-21 | 1992-02-18 | Thiele Kaolin Company | Opacifying kaolin pigments and process for making same by reacting with sodium hydroxide in water |
| DE10142899B4 (de) * | 2000-09-04 | 2006-01-19 | Bundesrepublik Deutschland, vertreten durch den Präsidenten der Bundesanstalt für Geowissenschaften und Rohstoffe | Verfahren zur Synthese von hochreinem NaA-Zeolith aus unaufbereiteten allophanreichen Lehmen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114603A (en) * | 1960-01-15 | 1963-12-17 | Union Carbide Corp | Process for synthetic zeolite a |
| FR1264441A (fr) * | 1960-08-05 | 1961-06-19 | Grace W R & Co | Procédé de préparation de zéolites synthétiques cristallines |
-
1977
- 1977-05-31 GB GB2304977A patent/GB1603084A/en not_active Expired
-
1978
- 1978-05-25 CA CA304,110A patent/CA1101825A/en not_active Expired
- 1978-05-31 FR FR7816284A patent/FR2392934A1/fr active Granted
- 1978-05-31 DE DE19782823927 patent/DE2823927C2/de not_active Expired
- 1978-05-31 ES ES470368A patent/ES470368A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2823927A1 (de) | 1978-12-14 |
| FR2392934B1 (es) | 1983-08-19 |
| CA1101825A (en) | 1981-05-26 |
| FR2392934A1 (fr) | 1978-12-29 |
| DE2823927C2 (de) | 1987-01-22 |
| GB1603084A (en) | 1981-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1161974A (en) | Synthetic Crystalline Aluminosilicate and method of preparing the same | |
| Hanic et al. | Mechanism of hydration reactions in the system C4A3S CS CaO H2O referred to hydration of sulphoaluminate cements | |
| KR880005032A (ko) | 결합된 지얼라이트 및 이의 제조방법 | |
| ATE26819T1 (de) | Verfahren zur herstellung von kristalliner tonerde. | |
| GB1061474A (en) | Synthetic zeolites | |
| Cole et al. | Products formed in an aged concrete the occurrence of okenite | |
| IT1152998B (it) | Procedimento per la preparazione di allumino-silicati cristallini porosi | |
| ES302110A2 (es) | Procedimiento para la produccion de un mineral de silicato analogo a la arcilla. | |
| ES465937A1 (es) | Procedimiento para la preparacion de aluminio-silicatos de sodio predominantemente cristalinos. | |
| ES489504A1 (es) | Procedimiento para la obtencion de una ceolita | |
| Carlson | Hydrogarnet Formation in the System | |
| GB902150A (en) | Catalytic production of ethylene glycol | |
| ES8306072A1 (es) | "metodo para la fabricacion de zeolita cristalina". | |
| ES470368A1 (es) | Procedimiento para preparar zeolita a | |
| GB1432707A (en) | Anhydrous amorphous siliceous material derived from organic plant material its process of preparation and compositions containing same | |
| GB1069021A (en) | A process for the manufacture of zeolites | |
| GB1341984A (en) | Production of synthetic zeolites of faujasite structure | |
| GB765468A (en) | Improvements in and relating to the production of alumina/silica catalysts | |
| RU2041864C1 (ru) | Вяжущее | |
| SU596273A1 (ru) | Способ получени сорбента дл очистки газов от сернистых соединений | |
| GB980891A (en) | Production of molecular sieve adsorbents from kaolin minerals | |
| SU69295A1 (ru) | Способ получени цемента | |
| SU530872A1 (ru) | Сырьева смесь дл изготовлени теплоизол ционного материала | |
| SU95529A1 (ru) | Способ получени гидроокиси бари | |
| SU865794A1 (ru) | Способ получени волластонита |