Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico
ABSTRACT Montmorillonite was modified with zirconium polyoxycations in the presence of ammonium sulphate. The material was characterized and used as a catalyst in the esterification of lauric acid, the reactions being accompanied by 2³ factorial design. Conversions of up to 95.33 and 83.35% were obs...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2012-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900002&lng=en&tlng=en |
| _version_ | 1811333170072649728 |
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| author | Leandro Zatta Angelita Nepel Andersson Barison Fernando Wypych |
| author_facet | Leandro Zatta Angelita Nepel Andersson Barison Fernando Wypych |
| author_sort | Leandro Zatta |
| collection | DOAJ |
| description | ABSTRACT Montmorillonite was modified with zirconium polyoxycations in the presence of ammonium sulphate. The material was characterized and used as a catalyst in the esterification of lauric acid, the reactions being accompanied by 2³ factorial design. Conversions of up to 95.33 and 83.35% were observed for the methyl and ethyl esterification reactions respectively, proving superior to results obtained by thermal conversion. The material was submitted to three reaction cycles and similar conversions were observed, indicating the catalyst is not significantly deactivated after reuse. The catalyst was also tested under reflux conditions, yielding a maximum conversion of 36.86%. |
| first_indexed | 2024-04-13T16:47:57Z |
| format | Article |
| id | doaj.art-fa81dbca2de342c28a31a14cc3711ff3 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-13T16:47:57Z |
| publishDate | 2012-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-fa81dbca2de342c28a31a14cc3711ff32022-12-22T02:39:01ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642012-01-013591711171810.1590/S0100-40422012000900002S0100-40422012000900002Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láuricoLeandro Zatta0Angelita Nepel1Andersson Barison2Fernando Wypych3Universidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáABSTRACT Montmorillonite was modified with zirconium polyoxycations in the presence of ammonium sulphate. The material was characterized and used as a catalyst in the esterification of lauric acid, the reactions being accompanied by 2³ factorial design. Conversions of up to 95.33 and 83.35% were observed for the methyl and ethyl esterification reactions respectively, proving superior to results obtained by thermal conversion. The material was submitted to three reaction cycles and similar conversions were observed, indicating the catalyst is not significantly deactivated after reuse. The catalyst was also tested under reflux conditions, yielding a maximum conversion of 36.86%.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900002&lng=en&tlng=enbiodieselesterificationmontmorillonite |
| spellingShingle | Leandro Zatta Angelita Nepel Andersson Barison Fernando Wypych Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico Química Nova biodiesel esterification montmorillonite |
| title | Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico |
| title_full | Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico |
| title_fullStr | Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico |
| title_full_unstemmed | Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico |
| title_short | Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico |
| title_sort | montmorilonita modificada como catalisador heterogeneo em reacoes de esterificacao m etilica de acido laurico |
| topic | biodiesel esterification montmorillonite |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900002&lng=en&tlng=en |
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