Cinetique
Mostrando 1-2 de 2 artigos, teses e dissertações.
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1. APPROCHE THERMODYNAMIQUE ET CINETIQUE DE L EXTRACTION A DEUX PHASES AQUEUSES À L AIDE DE TENSIOACTIFS NON IONIQUES / A THERMODYNAMIC AND KINETIC APPROACH OF TWO-AQUEOUS PHASE EXTRACTION WITH NON-IONIC SURFACTANTS
The present work forms a part of the study of a two-aqueous phase extraction process using the occurrence of a cloud point (Tc) in the phase diagrams of water/polyethoxylated nonionic surfactant systems. Its main goals were: modelling and predicting the corresponding cloud point curves, investigating the mechanism controlling the mass transfer between phases
Publicado em: 2004
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2. SULFOCHLORINATION WITH SULFURYL CHLORIDE : AN ALTERNATIVE PROCESS FOR THE MANUFACTURE OF SECONDARY ALKANESULFONATES / SULFOCHLORATION PAR LE CHLORURE DE SULFURYLE : UN PROCEDE ALTERNATIF POUR LA FABRICATION D ALCANESULFONATES SECONDAIRES.
Secondary alkanesulfonates (SAS) are biodegradable surfactants largely used as active matter in detergent formulations and as emulsifying agents. SAS are manufactured by photosulfoxidation or photosulfochlorination of linear paraffin cuts. The photosulfochlorination process usually involves the reaction of a gas mixture (SO 2 + Cl 2) on alkanes, but recent w
Publicado em: 2004