| Full text | |
| Author(s): |
Michelle Mantovani
[1]
;
Erik Moda Aguiar
[2]
;
Wagner Alves Carvalho
[3]
;
Dalmo Mandelli
[4]
;
Maraisa Gonçalves
Total Authors: 5
|
| Affiliation: | [1] Universidade Federal do ABC. Centro de Ciências Naturais e Humanas - Brasil
[2] Universidade Federal do ABC. Centro de Ciências Naturais e Humanas - Brasil
[3] Universidade Federal do ABC. Centro de Ciências Naturais e Humanas - Brasil
[4] Universidade Federal do ABC. Centro de Ciências Naturais e Humanas - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Química Nova; v. 38, n. 4, p. 526-532, 2015-05-00. |
| Abstract | |
Environmentally friendly acid carbon (CG) catalysts, containing a high amount of sulfonated and oxygenated groups, were prepared from glycerin, a biodiesel waste. CGs were produced by glycerin carbonization in the presence of H2SO4 at 1:3 m:m ratio in a closed autoclave at 180ºC for different times: 0.25; 1; 3 and 6 hours (CG-0.25h; CG-1h; CG-3h and CG-6h, respectively). The catalyst properties for all carbons were evaluated in the glycerol etherification reaction with tert-butyl alcohol (TBA). The yield for mono-tert-butyl glycerol (MTBG), di-tert-butyl glycerol (DTBG) and tri-tert-butyl-glycerol (TTBG) was high and very similar for all CGs, of about 43% and 20% for the MTBG and DTBG + TTBG, respectively. Furthermore, the activity of these catalysts were close to those obtained using a commercial resin, Amberlyst-15, of about 50% and 27% for MTBG and DTBG + TTBG, respectively. (AU) | |
| FAPESP's process: | 13/21160-6 - Catalytic conversion of glycerol and acetol promoted by metal nanoparticles supported on carbon and molecular sieves |
| Grantee: | Wagner Alves Carvalho |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 14/18529-0 - Preparation of activated carbon with high surface area from biodiesel waste |
| Grantee: | Maraisa Gonçalves |
| Support Opportunities: | Scholarships in Brazil - Young Researchers |
| FAPESP's process: | 11/22264-4 - Utilization of lignocelulosic and glycerol wastes for production of catalysts with acidic properties |
| Grantee: | Maraisa Gonçalves |
| Support Opportunities: | Research Grants - Young Investigators Grants |