Detail of "15123-80-5"

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Influence of the preparation method on the hydrotreating activity of MoS2/Al2O3 extrudates: A Raman microspectroscopy study on the genesis of the active phase

All Rights Reserved. Influence of the preparation method on the hydrotreating activity of MoS2/Al2O3 extrudates: A Raman microspectroscopy study on the genesis of the active phase. Bergwerff, Jaap A.; Jansen, Marcel; Leliveld, Bob G.; Visser, Tom; de Jong, Krijn P.; Weckhuysen, Bert M. 15123-80-5 and 915211-21-1 are cas registry numbers. These chemicals are also mentioned in this article. (Inorganic Chemistry and Catalysis, Department of Chemistry, Utrecht University, Utrecht 3508 TB, Neth.). Journal of Catalysis, 243(2), 292-302 (English) 2006 Elsevier Ltd. CODEN: JCTLA5. ISSN: 0021-9517. DOCUMENT TYPE: Journal CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 67 Raman microspectroscopy was used to study the prepn. of industrial MoS2/Al2O3 extrudates. Using this technique, the influence of the impregnation soln. compn. on the nature and macrodistribution of Mo complexes inside these catalyst bodies was evaluated during their prepn. process (impregnation, drying, and calcination). It was found that poor dispersion of the MoOx phase in the calcined samples can be brought about by the formation of bulk (NH4)3[Al(OH)6Mo6O18] during impregnation or redistribution of Mo complexes during drying. The formation of cryst. MoO3 and Al2(MoO4)3 in the oxidic precursors leads to a poorly dispersed MoS2 phase in the final catalyst and significantly lower hydrodesulfurization activity. The spatially resolved information that can be obtained, and its inherent sensitivity for the detection of cryst. phases make Raman microspectroscopy a powerful characterization technique for studying the prepn. of industrial supported metal oxide catalysts. .

Study of the physicochemical properties of trivalent metal molybdates and their activity in the oxidation of propylene and 1-butene

Study of the physicochemical properties of trivalent metal molybdates and their activity in the oxidation of propylene and 1-butene. Agaguseinova, M. M.; Adzhamov, K. Yu.; Alkhazov, T. G. (Azerb. Inst. Nefti Khim.In this article, certain chemicals are used. Some of their cas registry numbers are 15123-80-5 and 13859-99-9 im. Azizbekova, Baku, USSR). Kinet. Katal., 17(6), 1556-62 (Russian) 1976. CODEN: KNKTA4. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) The activity of M2(MoO4)3 as catalysts for title oxidns. decreased in the order M = Fe >Ga >Cr .simeq.Bi >Ln >Al >La >Ce; catalytic activity was correlated with data from x ray, thermographic, and IR studies. .