Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process
LTA and FAU zeolites were successfully synthesized from a Venezuelan sodium silicate solution, by hydrothermal crystallization under autogenous pressure at 100°C, with 2–24h crystallization times. The synthesized materials were characterized by XRD, BET specific surface area and SEM. A series of syn...
- Autores:
-
García, Adriana Lucía
López, Carmen Milena
García, Luis Vicente
Rincón de Goldwasser, Mireya
Casanova, Johliny Del Carmen
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2016
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/67633
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/67633
http://bdigital.unal.edu.co/68662/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
LTA zeolites
FAU zeolites
hydrothermal synthesis
zeolite synthesis
environmentally friendly process.
Zeolita LTA
zeolita FAU
síntesis hidrotérmica
síntesis de zeolitas
proceso ambientalmente amigable.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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| dc.title.spa.fl_str_mv |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| title |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| spellingShingle |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process 62 Ingeniería y operaciones afines / Engineering LTA zeolites FAU zeolites hydrothermal synthesis zeolite synthesis environmentally friendly process. Zeolita LTA zeolita FAU síntesis hidrotérmica síntesis de zeolitas proceso ambientalmente amigable. |
| title_short |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| title_full |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| title_fullStr |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| title_full_unstemmed |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| title_sort |
Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process |
| dc.creator.fl_str_mv |
García, Adriana Lucía López, Carmen Milena García, Luis Vicente Rincón de Goldwasser, Mireya Casanova, Johliny Del Carmen |
| dc.contributor.author.spa.fl_str_mv |
García, Adriana Lucía López, Carmen Milena García, Luis Vicente Rincón de Goldwasser, Mireya Casanova, Johliny Del Carmen |
| dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
| topic |
62 Ingeniería y operaciones afines / Engineering LTA zeolites FAU zeolites hydrothermal synthesis zeolite synthesis environmentally friendly process. Zeolita LTA zeolita FAU síntesis hidrotérmica síntesis de zeolitas proceso ambientalmente amigable. |
| dc.subject.proposal.spa.fl_str_mv |
LTA zeolites FAU zeolites hydrothermal synthesis zeolite synthesis environmentally friendly process. Zeolita LTA zeolita FAU síntesis hidrotérmica síntesis de zeolitas proceso ambientalmente amigable. |
| description |
LTA and FAU zeolites were successfully synthesized from a Venezuelan sodium silicate solution, by hydrothermal crystallization under autogenous pressure at 100°C, with 2–24h crystallization times. The synthesized materials were characterized by XRD, BET specific surface area and SEM. A series of synthesis tests were performed to study the influence of the molar composition of the starting mixture over zeolites crystallization. The effect of crystallization time for a particular synthesis mixture composition was studied for both zeolites types. The reuse as alkaline medium of the mother liquor separated during filtration, and the effect of the aging before crystallization were additionally studied. The experimental result are in agreement with the crystallization mechanism proposed for zeolites synthesis in liquid phase. The use of a 2SiO2:Al2O3:6.Na2O:240H2O synthesis mixture composition allows obtaining LTA zeolite within 2h of crystallization. For FAU zeolite, no aging period was needed when starting with a 4SiO2:Al2O3:6.6Na2O:264H2O composition. It was possible to synthesize both zeolites with high purity and crystallinity and with adequate water adsorption properties. |
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2016 |
| dc.date.issued.spa.fl_str_mv |
2016-01-01 |
| dc.date.accessioned.spa.fl_str_mv |
2019-07-03T04:43:37Z |
| dc.date.available.spa.fl_str_mv |
2019-07-03T04:43:37Z |
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Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Text |
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http://purl.org/coar/resource_type/c_6501 |
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publishedVersion |
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ISSN: 2248-8723 |
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https://repositorio.unal.edu.co/handle/unal/67633 |
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http://bdigital.unal.edu.co/68662/ |
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ISSN: 2248-8723 |
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https://repositorio.unal.edu.co/handle/unal/67633 http://bdigital.unal.edu.co/68662/ |
| dc.language.iso.spa.fl_str_mv |
spa |
| language |
spa |
| dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/ingeinv/article/view/52855 |
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Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e Investigación Ingeniería e Investigación |
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García, Adriana Lucía and López, Carmen Milena and García, Luis Vicente and Rincón de Goldwasser, Mireya and Casanova, Johliny Del Carmen (2016) Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process. Ingeniería e Investigación, 36 (1). pp. 62-69. ISSN 2248-8723 |
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Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
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Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería |
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Universidad Nacional de Colombia |
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2García, Adriana Lucíaf4071c70-8c59-44b2-9d8b-42bbd20f17b1300López, Carmen Milena754c9595-74ca-4dda-87a7-659e7c5c12ef300García, Luis Vicentef81951b9-27d9-43c0-a0ee-f892a9da851b300Rincón de Goldwasser, Mireya9e56a6a4-e4ee-4101-af0b-180ed0c8802a300Casanova, Johliny Del Carmen287bb2a8-4b42-430b-9264-eb07dfa214aa3002019-07-03T04:43:37Z2019-07-03T04:43:37Z2016-01-01ISSN: 2248-8723https://repositorio.unal.edu.co/handle/unal/67633http://bdigital.unal.edu.co/68662/LTA and FAU zeolites were successfully synthesized from a Venezuelan sodium silicate solution, by hydrothermal crystallization under autogenous pressure at 100°C, with 2–24h crystallization times. The synthesized materials were characterized by XRD, BET specific surface area and SEM. A series of synthesis tests were performed to study the influence of the molar composition of the starting mixture over zeolites crystallization. The effect of crystallization time for a particular synthesis mixture composition was studied for both zeolites types. The reuse as alkaline medium of the mother liquor separated during filtration, and the effect of the aging before crystallization were additionally studied. The experimental result are in agreement with the crystallization mechanism proposed for zeolites synthesis in liquid phase. The use of a 2SiO2:Al2O3:6.Na2O:240H2O synthesis mixture composition allows obtaining LTA zeolite within 2h of crystallization. For FAU zeolite, no aging period was needed when starting with a 4SiO2:Al2O3:6.6Na2O:264H2O composition. It was possible to synthesize both zeolites with high purity and crystallinity and with adequate water adsorption properties.Zeolitas LTA y FAU fueron sintetizadas con éxito a partir de una solución de silicato de sodio venezolano, por cristalización hidrotérmica bajo presión autógena a 100 ° C, a tiempos de cristalización de 2–24h. los materiales sintetizados se caracterizaron por DRX, área específica BET y SEM. Se realizaron una serie de pruebas de síntesis para estudiar la influencia de la composición molar de la mezcla de partida sobre la cristalización. Se estudió el efecto del tiempo de cristalización para una composición de mezcla de síntesis particular para ambos tipos zeolitas, la reutilización como medio alcalino del licor madre separado durante la filtración, y el efecto del envejecimiento antes de la cristalización. Los resultados experimentales están de acuerdo con el mecanismo propuesto de cristalización para la síntesis de zeolitas en fase líquida. El uso de una composición de 2SiO2: Al2O3: 6.Na2O: 240H2O en la síntesis permite la obtención de zeolita LTA a partir de 2h de cristalización. Para la zeolita FAU, no se requirió de período de envejecimiento cuando se parte de la composición 4SiO2: Al2O3: 6.6Na2O: 264H2O. Fue posible sintetizar ambas zeolitas con alta pureza y cristalinidad y propiedades adecuadas de adsorción de agua.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ingenieríahttps://revistas.unal.edu.co/index.php/ingeinv/article/view/52855Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e InvestigaciónIngeniería e InvestigaciónGarcía, Adriana Lucía and López, Carmen Milena and García, Luis Vicente and Rincón de Goldwasser, Mireya and Casanova, Johliny Del Carmen (2016) Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly process. Ingeniería e Investigación, 36 (1). pp. 62-69. ISSN 2248-872362 Ingeniería y operaciones afines / EngineeringLTA zeolitesFAU zeoliteshydrothermal synthesiszeolite synthesisenvironmentally friendly process.Zeolita LTAzeolita FAUsíntesis hidrotérmicasíntesis de zeolitasproceso ambientalmente amigable.Improvements in the synthesis of zeolites with low Si/Al ratio from Venezuelan sodium silicate for an environmentally friendly processArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL52855-289779-1-PB.pdfapplication/pdf1096642https://repositorio.unal.edu.co/bitstream/unal/67633/1/52855-289779-1-PB.pdfcdd1fcf09f334909790e95582c3ff878MD51THUMBNAIL52855-289779-1-PB.pdf.jpg52855-289779-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8693https://repositorio.unal.edu.co/bitstream/unal/67633/2/52855-289779-1-PB.pdf.jpg61a677dc36084a683f44de6a3e02ede2MD52unal/67633oai:repositorio.unal.edu.co:unal/676332023-05-30 23:03:23.866Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |