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Synthesis of polyurethane-urea microcapsules with perfume for textile application
Rodrigues, S.N.; Martins, I.M.; Mata, V.G.; Barreiro, M.F.; Rodrigues, A.E.This work is a contribution to the introduction of emergent technologies in the textile sector, namely the microencapsulation of fragrances and its application to obtain added-value products. Polyurethane/urea microcapsules with a perfume have been produced using the interfacial polymerization technology for industrial application on textile substrate having in view man suits production. The specific objective ...
Simulated moving bed and related techniques
Pais, L.S.; Mata, V.G.; Rodrigues, A.E.In the last 12 years, Simulated Moving Bed (SMB) technology has received considerable attention in both academic and industrial fields. The objective of this chapter is to introduce the SMB concept and to present the modeling strategies to simulate and to implement the design of SMB processes. Results will be shown, illustrating the influence of equilibrium adsorption isotherms and mass transfer resistances on ...
Fractionation of multicomponent sugar mixtures using a pseudo simulated moving bed
Mata, V.G.; Pais, L.S.; Azevedo, D.C.S.; Rodrigues, A.E.A model for the fractionation of a ternary mixture of sugars by pseudo-simulated moving bed chromatography, according to the JO process of Japan Organo Co., is presented. This methodology is applied to the separation of a ternary mixture constituted by two sugars – sucrose (disaccharide) and fructose (monosaccharide) – and one non-sugar – betaine.
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