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Edidiong, O., Habiba, S., Mohammed, K., Ngozi, N., Ifeyinwa, O. and Gobina, E. (2015) Cation-Exchange Resin Characterisation and Carrier Gas Performance with Mesoporous Silica Membranes for Ethyl Lactate Separation. International Journal of Engineering Research and Technology, 4, 465-467.
http://dx.doi.org/10.17577/ijertv4is040606

has been cited by the following article:

• TITLE: Resin Characterization and Tubular Membrane Transport with Single Gases for Ethyl Lactate Separations for Industrial Purposes

  AUTHORS: Edidiong Okon, Habiba Shehu, Ngozi Nwogu, Mohammed Kajama, Ifeyinwa Orakwe, Edward Gobina

  KEYWORDS: Esterification, Resin Characterisation, Transport Mechanism, Ethyl Lactate and Permeability

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.3 No.9, September 8, 2015

  ABSTRACT: The dip-coating method has been used to prepare silica membrane. The gas flow rate relationship with the gauge pressure showed a Knudsen type of mechanism of gas transport. The flux was found to decrease with respect to temperature indicating non-activation mechanism of transport through the membrane. The order of the gas kinetic diameter with respect to the gas flow rate was He > Ar > CO2 > N2 confirming a molecular sieving mechanism of gas transport. The characterisation of the resin catalysts was carried out using scanning electron microscopy (SEM). The SEM morphology of the Amberlyst 16 resin catalysts showed a defect-free surface before esterification process. Amberlyst 15 catalyst exhibited some defect on the surface indicating a lower resistance to lactic acid and decomposition at higher temperature after the esterification process at 60°C. The order of the gas viscosity with respect to the gas flux was N2 > Ar > CO2 > He.