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

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Otero, M (Author) Other; Zabkova, M (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY

Vol. 11

Pages: 887-892

ISSN: 0929-5607

Publisher: Springer

Indexing

ISI Proceedings

ISI Web of Knowledge - 3 Citations

Scopus - 2 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-000-53G

DOI: 10.1007/s10450-005-6041-1

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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6