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2 Polish Journal of Chemical Technology

2 Słomkiewicz P.M.

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A determination of equilibrium constants for syntheses of methyl-tert-butyl and ethyl-tert-butyl ethers on sulfonic copolymer by gas chromatography

Słomkiewicz P.M.

Polish Journal of Chemical Technology

2006

Vol. 8, nr 2

97-101

A method of determining equilibrium constants of catalytic reactions was described using gas chromatography. Both the equilibrium constants and enthalpies of methyl-tert-butyl ether from methanol and isobutene, ethyl-tert-butyl ether from ethanol and isobutene on catalyst Amberlyst 15 in the gas phase were determined. The enthalpy values of these reactions were compared with the enthalpies calculated from thermodynamic data and the experimental data given in the literature.

Determination of the adsorption model of alcohols on the sulfonic copolymer by a gas chromatography method

Słomkiewicz P.M.

Polish Journal of Chemical Technology

2004

Vol. 6, nr 2

39-42

Determination of the number of adsorption sites on the sulfonated divinylbenzene-styrene copolymer for alcohols (methanol, ethanol and n-propanol, n-butanol,) was performed by the copolymer saturation of alcohol vapour, the removing excess of alcohol from the copolymer by blowing the inert gas through the copolymer bed and the desorption of the adsorbed alcohol at the programmed increase of temperature. The adsorption measurements were performed on the sulfonated ion exchange resin (Amberlyst 15) with different acid group concentration, which means, with the varying number of adsorption sites. The adsorption model where one sulfonic group can adsorb one molecule of alcohol was proposed.