Abstract
The prereduction of copper chromite with hydrogen produces a strong deactivation of catalyst in soybean oil hydrogenation at 200 C and 6 atm. ESCA studies and kinetic data show that the decrement of the activity is correlated to the disappearance of Cu″ and Cu′ species and to the decrement of Cu/Cr ratio on the catalyst surface. The comparison of activity between original and prereduced catalysts allows a better elucidation of the role of Cu′ in promoting the double bond conjugation and of Cu° in catalyzing the conjugated double bond hydrogenation.
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References
Adkins, H., and R. Connor, J. Am. Chem. Soc. 53:1091 (1931).
Koritala, S., and H.J. Dutton, JAOCS 43:86 (1966).
Okkerse, C., A. de Jonge, J.W.E. Coenen and R. Rozendaal, Ibid. 44:152 (1967).
Koritala, S., and H.J. Dutton, Ibid. 46:245 (1969).
Kirschner, E., and E.R. Lowrey, Ibid. 47:467 (1970).
Vigneron, P.Y., S. Koritala, R.O. Butterfield and H.J. Dutton, Ibid. 49:371 (1972).
Mounts, T.L., S. Koritala, J.P. Friedrich and H.J. Dutton, Ibid. 55:402 (1978).
Johansson, L.E., Ibid. 56:987 (1979).
Koritala, S., J.P. Friedrich and T.L. Mounts, Ibid. 57:1 (1980).
Johansson, L.E., and S.T. Lundin, Ibid. 56:981 (1979).
Koritala, S., and E. Selke, Ibid. 48:222 (1971).
Adkins, H., E.E. Burgoyne and H. Schneider, J. Am. Chem. Soc. 72:2626 (1950).
Miya, B., F. Hoshino and I. Iwasa, J. Catalysis 5:401 (1966).
Johansson, L.E., and S.T. Lundin, JAOCS 56:974 (1979).
Stroupe, J.D., J. Am. Chem. Soc. 71:569 (1949).
Konetzke, G., H. Aring, P.E. Nau, G. Kunicke and J. Hille, Chem. Technol. 25:40 (1973).
D’Huysser, A., A. Lucchetti, G. Wrobel and J.P. Bonelle J. Microsc. Spectrosc. Electron. 2:609 (1977).
Schreifels, L.A., A. Rodero and W.E. Swartz, Jr., J. Appl. Spectrosc. 33:380 (1979).
Moulton, K.J., D.J. Moore and R.E. Beal, JAOCS 46:662 (1969).
Koritala, S., and C.R. Scholfield, Ibid. 47:262 (1970).
Kirschner, E., and E.R. Lowrey, Ibid. 47:237 (1970).
Gargano, M., P. Giannoccaro and M. Rossi, J. Organomet. Chem. 84:389 (1975).
Fragale, C., M. Gargano and M. Rossi, JAOCS 56:498 (1979).
Cocks, L.V., and C. Van Rede, Laboratory Handbook for Oil and Fat Analysts, Academic Press, London, 1966, pp. 152–156.
Briggs, D., Handbook of X-ray and Ultraviolet Photoelectron Spectroscopy, Heyden, London, 1977, chap. 1, 3, 5, and 7.
Di Castro, V., C. Fragale, C. Furlani, M. Gargano, G. Mattogno and M. Rossi, XIII Congr. Naz. Chim. Inorg. C22:237 (1980).
Capece, F.M., V. Di Castro, C. Fragale, C. Furlani, M. Gargano, G. Mattogno and M. Rossi, J. Spectrosc. (in press).
Capece, F.M., V. Di Castro, C. Fragale, C. Furlani, M. Gargano, G. Mattogno and M. Rossi, XIV Congr. Naz. Chim. Inorg. D8:234 (1981).
Van Den Bosh, G., JAOCS 50:421 (1973).
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For part I, see ref. 23.
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Fragale, C., Gargano, M. & Rossi, M. Catalytic hydrogenation of vegetable oils: II. The activity of the prereduced copper chromite catalyst. J Am Oil Chem Soc 59, 465–469 (1982). https://doi.org/10.1007/BF02636143
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DOI: https://doi.org/10.1007/BF02636143