Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Luiza Helena de Oliveira Pires"'
Autor:
Ana Alice Farias da Costa, Alex de Nazaré de Oliveira, Rutiléia de Jesus Paiva, Luiza Helena de Oliveira Pires, Eloísa Helena de Aguiar Andrade, Patrícia Teresa Souza da Luz, Renata Coelho Rodrigues Noronha, Geraldo Narciso da Rocha Filho, Carlos Emmerson Ferreira da Costa, Sameh M. Osman, Rafael Luque, Luís Adriano Santos do Nascimento
Publikováno v:
Arabian Journal of Chemistry, Vol 16, Iss 12, Pp 105313- (2023)
A heterogeneous acid catalyst was synthesized by anchoring 12–tungstophosphoric acid (HPW) onto biochar derived from Brazil nut shells (Bertholletia excelsa). This catalyst was used for the synthesis of vanillin from isoeugenol, employing hydrogen
Externí odkaz:
https://doaj.org/article/7c8b778b9f274d19be44772bbc8435dd
Autor:
Katiane Cunha de Melo, Ingrid Silva de Oliveira, Luiza Helena de Oliveira Pires, Luís Adriano Santos do Nascimento, José Roberto Zamian, Geraldo Narciso da Rocha Filho, Marcele Fonseca Passos, Alessandra Santos Lopes, Attilio Converti, Carlos Emmerson Ferreira da Costa
Publikováno v:
Energies, Vol 13, Iss 4, p 804 (2020)
Palm oil is one of the most consumed oils, one of whose refining steps is the removal of pigments and other substances using bleaching clay as adsorbent. Worldwide production of this oil was 70 million tons in 2017, requiring 1 t of clay to produce 1
Externí odkaz:
https://doaj.org/article/db1c79b2679541529504a4d307908ba6
Autor:
Ana Alice Farias da Costa, Luiza Helena de Oliveira Pires, Daily Rodríguez Padrón, Alina M. Balu, Geraldo Narciso da Rocha Filho, Rafael Luque, Luís Adriano Santos do Nascimento
Publikováno v:
Molecular Catalysis. 518:112052
Autor:
Alex de Nazaré de Oliveira, Irlon Maciel Ferreira, David Esteban Quintero Jimenez, Fernando Batista Neves, Linéia Soares da Silva, Ana Alice Farias da Costa, Erika Tallyta Leite Lima, Luíza Helena de Oliveira Pires, Carlos Emmerson Ferreira da Costa, Geraldo Narciso da Rocha Filho, Luís Adriano Santos do Nascimento
Publikováno v:
Catalysts, Vol 11, Iss 5, p 604 (2021)
The distillate from the deodorization of palm oil (DDPO) is an agro-industrial residue, approximately 84% of which consists of free fatty acids (FFAs), which can be used for the production of fatty acid ethyl esters (FAEE). A catalyst (10HPMo/AlSiM)
Externí odkaz:
https://doaj.org/article/415a01fbe5604610962e1ab2a1356e8a
Autor:
Alex de Nazaré de Oliveira, Erika Tallyta Leite Lima, Eloisa Helena de Aguiar Andrade, José Roberto Zamian, Geraldo Narciso da Rocha Filho, Carlos Emmerson Ferreira da Costa, Luíza Helena de Oliveira Pires, Rafael Luque, Luís Adriano Santos do Nascimento
Publikováno v:
Catalysts, Vol 10, Iss 5, p 478 (2020)
The present work was aimed to investigate the catalytic activity of a mesoporous catalyst synthesized from 3-mercaptopropyltrimethoxysilane (MPTS) functionalized Amazonian flint kaolin in the acetylation of eugenol with acetic anhydride. Materials we
Externí odkaz:
https://doaj.org/article/d68d29f934f147e187be1ad0f5dcff6c
Autor:
Alex de Nazaré de Oliveira, Marco Aurélio Barbosa de Lima, Luíza Helena de Oliveira Pires, Moisés Rosas da Silva, Patrícia Teresa Souza da Luz, Rômulo S. Angélica, Geraldo N. da Rocha Filho, Carlos Emmerson F. da Costa, Rafael Luque, Luís Adriano Santos do Nascimento
Publikováno v:
Materials, Vol 12, Iss 9, p 1431 (2019)
Two bentonites from Paraíba (Northeastern Brazil) were impregnated with heteropoly phosphomolybdic H3PMo12O40 (HPMo). The materials produced were characterized by various techniques such as N2 adsorption-desorption (specific surface area, SSA), Four
Externí odkaz:
https://doaj.org/article/2df4d8f7845c44bb8991f3a996ab2091