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Casimiro, T., F. Montilla, S. Garcia, T. Aviles, S. Raeissi, A. Shariati, C. J. Peters, M. N. da Ponte, and A. Aguiar-Ricardo. "Phase behaviour of the catalyst dicarbonyl (eta(5)-cyclopentadienyl)-cobalt in carbon dioxide." J Supercrit Fluid. 31 (2004): 1-8. AbstractWebsite

The phase behaviour of the binary mixture of carbon dioxide and the cobalt complex dicarbonyl(eta(5)-cyclopentadienyl)-cobalt, CPCo(CO)(2), has been investigated. This organometallic compound is one of the most effective catalysts of cyclotrimerization reactions of arylisocyanates and alkynes. Vapour-liquid equilibrium (VLE) measurements were undertaken in a static analytical apparatus at 313.15, 323.15 and 363.15 K at pressures up to 15 MPa. p, T isopleths were measured by a synthetic method in a Cailletet apparatus. Nine different compositions ranging from 17.56 to 94.23 mol% of CO2 were measured up to 15 MPa. Modelling with the Peng-Robinson equation of state (PR EOS) gave reasonable results in the correlation of the experimental phase equilibrium compositions using two temperature-dependent interaction parameters. (C) 2003 Elsevier B.V. All rights reserved.