Abstract
We found that the multicomponent bismuth phosphate (MBP) with multiphase activates catalytically the ammoxidation reaction of propylene and consists of mainly BiPO4 and metal molybdates, etc. The MBP has been characterized by several techniques such as DTA, XRD, and BET surface area and total pore volume measurements. The DTA curve clearly shows that there are phase transitions with sharp breaks of the curve. The specific surface area and total pore volume decrease with increasing of the BiPO4 phase content, showing that the BiPO4 phase remains essentially on the catalyst surface and blocks the active sites and catalyst pores. It would mean that the catalytic behavior in the MBP depends on the catalyst surface covered with the BiPO4 phase adequately. The pathway of the selective oxidation due to the controlled amounts of the BiPO4 phase favors the formation of acrylonitrile. The improvement of catalytic performances of the mixture of phases is explained by the synergy effect.
Similar content being viewed by others
References
J.L. Callahan, R.K. Grasselli, E.C. Milberger and A.H. Strecker, Ind. Eng. Chem. Prod. Res. Dev. 9 (1970) 134.
R.K. Grasselli, in: Handbook of Heterogeneous Catalysis, Vol. 5, eds. G. Ertl, H. Knözinger and J. Weitkamp (VCH, Weinheim, 1997) ch. 4.6.6.
E.V. Howfs, J.R. Monnier and G.W. Keulks, J. Catal. 57 (1979) 331.
J.D. Burrington, C.T. Kartisek and R.K. Grasselli, J. Catal. 87 (1984) 363.
J.F. Bradzil, L.C. Glaeser and R.K. Grasselli, J. Catal. 81 (1983) 142.
L.C. Glaeser, J.F. Bradzil, M.A. Hazle, M. Mehicic and R.K. Grasselli, J. Chem. Soc. Faraday Trans. I 81 (1985) 2903.
W. Ueda, Y. Moro-oka and T. Ikawa, J. Chem. Soc. Faraday Trans. I 78 (1982) 495.
T. Ono and N. Ogata, J. Chem. Soc. Faraday Trans. I 90 (1994) 2113.
R.G. Teller, J.F. Bradzil, R.K. Grasselli and J.D. Jorgensen, Acta Crystallogr. C 40 (1984) 2001.
J.F. Bradzil and R.K. Grasselli, J. Catal. 79 (1983) 104.
J.F. Bradzil, D.D. Suresh and R.K. Grasselli, J. Catal. 66 (1980) 347.
R.K. Grasselli, J.F. Bradzil and J.D. Burrington, in: Proc. 8th Int. Congr. Catal., Berlin, Vol. 5 (Schoen and Wetzel, Frankfurt, 1984) p. 369.
M. Egasihra, K. Matsuo, S. Kawaga and T. Seiyama, J. Catal. 58 (1979) 409.
T.P. Snyder and C.G. Hill, J. Catal. 132 (1991) 536.
W. Jeischko, Acta Crystallogr. B 29 (1973) 2074.
H.Y. Chen and A.W. Sleight, J. Solid State Chem. 63 (1986) 70.
I. Matsuura, R. Schut and K. Hirakawa, J. Catal. 63 (1980) 152.
R.K. Grasselli, Appl. Catal. 15 (1985) 127.
K. Sennewald, W. Vogt, J. Kandler, R. Sommerfield and G. Sorbe, US Patent 3 226 422 (1965).
R.K. Grasselli and H.F. Hardman, US Patent 3 642 930 (1972).
R.K. Grasselli and H.F. Hardman, US Patent 4 503 001 (1985).
B. Delmon, M. Ruwet and S. Ceckiewicz, Ind. Eng. Chem. Res. 26 (1987) 1981.
J.M.D. Tescon, P. Bertrand, M. Genet and B. Delmon, J. Catal. 97 (1986) 300.
J.B. Moffat, Catal. Rev. Sci. Eng. 18 (1978) 199.
J.M.M. Millet, H. Ponceblanc, G. Coudurier, J.M. Herrmann and J.C. Védrine, J. Catal. 142 (1993) 381.
H. Ponceblanc, J.M.M. Millet, G. Coudurier and J.C. Védrine, J. Catal. 142 (1993) 272.
R. Castillo, K. Dewaele, P. Ruiz and B. Delmon, Appl. Catal. A 153 (1997) L1.
L.T. Weng, P. Ruiz, B. Delmon and D. Duprez, J. Mol. Catal. 52 (1989) 349.
E.M. Gaigneaux, P. Ruiz and B. Delmon, Stud. Surf. Sci. Catal. 112 (1997) 179.
E.M. Gaigmeaux, P. Ruiz and B. Delmon, Stud. Surf. Sci. Catal. 110 (1997) 185.
Y. Moro-oka and W. Ueda, Adv. Catal. 40 (1994) 233.
J.D. Burrington, C.T. Kartisek and R.K. Grasselli, J. Catal. 75 (1982) 225.
J.D. Burrington, C.T. Kartisek and R.K. Grasselli, J. Catal. 81 (1983) 489.
L.D. Krenzke and G.W. Keulks, J. Catal. 64 (1980) 295.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chang, TS., Guijia, L., Shin, CH. et al. Catalytic behavior of BiPO4 in the multicomponent bismuth phosphate system on the propylene ammoxidation. Catalysis Letters 68, 229–234 (2000). https://doi.org/10.1023/A:1019068411514
Issue Date:
DOI: https://doi.org/10.1023/A:1019068411514