Preliminary treatment of alumina with KOH increases the catalytic activity of an MoO3-Al2O3 catalyst. The curve of the specimen activity vs alkali content passes through a maximum.
Treatment with HCl vapor activates a WO3-SiO3 catalyst, and decativates an MoO3-Al2O3 catalyst, in propylene disproportionation.
According to the IR spectra, when propylene is adsorbed on a catalyst obtained by deposition of Mo(CO)6 onto Al2O3, it is coordinated by the molybdenum atom.
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We are grateful to K. N. Spifidonov and G. N. Asmolov for their help and for discussing the results.
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1004–1008, May, 1977.
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Aliev, R.K., Kadyushin, A.A., Tsitovskaya, I.L. et al. The nature of the active centers of propylene-disproportionation catalysts. Russ Chem Bull 26, 921–924 (1977). https://doi.org/10.1007/BF01152683
- Catalytic Activity