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Salicylic acid adsorption onto sephabeads SP206 in view of its purification by thermal parametric pumping

Título
Salicylic acid adsorption onto sephabeads SP206 in view of its purification by thermal parametric pumping
Tipo
Artigo em Revista Científica Internacional
Ano
2005
Autores
Otero, M
(Autor)
Outra
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Zabkova, M
(Autor)
Outra
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Alírio Rodrigues
(Autor)
FEUP
Revista
Indexação
Classificação Científica
CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química
Outras Informações
ID Authenticus: P-000-53G
Resumo (PT): Parametric pumping is a cyclic process that allows purification of industrial wastewaters without spending chemicals for regeneration and therefore avoiding a new pollution problem. The applicability of this technology to the purification of salicylic acid in liquid phase has been studied, salicylic acid being a phenolic compound with a high production in a world scale which is mainly linked to aspirin manufacture. The aim is to get at the same time a purified and a concentrated stream of salicylic acid, which allows recycling for the industrial process so contributing to achieve the concept of a zero-pollutant plant. Different operating conditions were accomplished in an automated pilot plant and experimental results were compared to those simulated by a previously developed package (Davesac et al., 2000). A satisfactory agreement is obtained with the linear driving force and axial dispersion model.
Abstract (EN): Parametric pumping is a cyclic process that allows purification of industrial wastewaters without spending chemicals for regeneration and therefore avoiding a new pollution problem. The applicability of this technology to the purification of salicylic acid in liquid phase has been studied, salicylic acid being a phenolic compound with a high production in a world scale which is mainly linked to aspirin manufacture. The aim is to get at the same time a purified and a concentrated stream of salicylic acid, which allows recycling for the industrial process so contributing to achieve the concept of a zero-pollutant plant. Different operating conditions were accomplished in an automated pilot plant and experimental results were compared to those simulated by a previously developed package (Davesac et al., 2000). A satisfactory agreement is obtained with the linear driving force and axial dispersion model.
Idioma: Inglês
Tipo (Avaliação Docente): Científica
Contacto: arodrig@fe.up.pt
Nº de páginas: 6
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