Search results for "Sodium dodecylbenzenesulfonate"

showing 2 items of 2 documents

2014

NanosizedCeO2powders were synthesized via hydrothermal method with different types of surfactants (polyethylene glycol (PEG), cetyltrimethylammonium bromide (CTAB), and sodium dodecylbenzenesulfonate (SDBS)). X-ray diffraction, Raman spectroscopy, and transmission electron microscopy were utilized to characterize the phase structures and morphologies of the products. The sample with CTAB as surfactant (CeO2-C) has the largest specific surface area and the smallest particle size among these three samples. The humidity sensor fabricated byCeO2-C shows higher performance than those usedCeO2-P andCeO2-S. The impedance of theCeO2-C sensor decreases by about five orders of magnitude with relative…

Materials scienceGeneral MathematicsSodium dodecylbenzenesulfonateGeneral EngineeringNanotechnologyPolyethylene glycolOrders of magnitude (numbers)symbols.namesakechemistry.chemical_compoundPulmonary surfactantChemical engineeringchemistrySpecific surface areasymbolsRelative humidityParticle sizeRaman spectroscopyMathematical Problems in Engineering
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A Study of the Separation of 1-Dodecene and 1-Tetradecene Hydroformylation Products in Aqueous Medium

2009

Abstract Experimental results of the solubilization of olefins in hydroformylation model systems, comprising 1-dodecene and 1-tridecanal or 1-tetradecene and 1-pentadecanal, water, butanol, sodium dodecylsulfate (SDS), sodium dodecylbenzenesulfonate (SDBS), and/or tri(m-sulfofenyl)phosphine trisodium salt (TPPTS-Na) are presented. The selected systems were used for the hydroformylation of 1-dodecene and 1-tetradecene whereby high yields of aldehydes were obtained. After the reaction, the mixture spontaneously separated into an organic phase with the reaction products and an aqueous phase comprising the catalyst and excess phosphine ligand.

Process Chemistry and TechnologyGeneral Chemical EngineeringButanolSodium dodecylbenzenesulfonateAqueous two-phase systemFiltration and SeparationGeneral ChemistryCatalysischemistry.chemical_compoundchemistryOrganic chemistry1-DodeceneMicroemulsionPhosphineHydroformylationSeparation Science and Technology
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