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Title: Study of metal oxide catalysts in the olefin oxidation from their reduction behavior--1. Reduction of various metal oxides with propylene

Abstract

At 500/sup 0/-550/sup 0/C, propylene reduced one or very few surface layers of the oxides of titanium, chromium, zinc, tin, indium, and tungsten. Carbon dioxide formation decreased and formation of partially oxidized products such as benzene and hexadiene increased to a maximum as the reaction progressed. The rates and product selectivities of the reduction of various other oxides varied, e.g., Bi/sub 2/O/sub 3/, was partly reduced to bulk metal with formation of 1,5-hexadiene, 1,3-cyclohexadiene, benzene, and carbon dioxide; and manganese dioxide was reduced in steps to bulk manganous oxide, with selectivity for benzene changing with each step. The oxides of vanadium, iron, cobalt, nickel, copper, and molybdenum also underwent bulk reduction. The coincident selectivities for acrolein, benzene or hexadiene, and carbon dioxide during reduction of a particular oxide and catalytic oxidation of propylene by that oxide suggests not only that oxide oxygens participate in the reaction, but that the metal-oxygen cleavage also controls the oxidation reaction. The relationship between metal oxide reducibility and catalytic activity and selectivity is further discussed.

Authors:
; ; ;
Publication Date:
Research Org.:
Kyusliu Univ.
OSTI Identifier:
6811713
Resource Type:
Journal Article
Journal Name:
J. Catal.; (United States)
Additional Journal Information:
Journal Volume: 57:2
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CATALYSTS; REDUCTION; CHROMIUM OXIDES; CATALYTIC EFFECTS; INDIUM OXIDES; MANGANESE OXIDES; PROPYLENE; OXIDATION; TIN OXIDES; TITANIUM OXIDES; TUNGSTEN OXIDES; ZINC OXIDES; ALKENES; REACTION KINETICS; REVIEWS; SURFACE PROPERTIES; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; DOCUMENT TYPES; HYDROCARBONS; INDIUM COMPOUNDS; KINETICS; MANGANESE COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; TIN COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS; ZINC COMPOUNDS; 400201* - Chemical & Physicochemical Properties; 400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)

Citation Formats

Aso, I, Nakao, M, Yamazoe, N, and Seiyama, T. Study of metal oxide catalysts in the olefin oxidation from their reduction behavior--1. Reduction of various metal oxides with propylene. United States: N. p., 1979. Web. doi:10.1002/chin.197926143.
Aso, I, Nakao, M, Yamazoe, N, & Seiyama, T. Study of metal oxide catalysts in the olefin oxidation from their reduction behavior--1. Reduction of various metal oxides with propylene. United States. https://doi.org/10.1002/chin.197926143
Aso, I, Nakao, M, Yamazoe, N, and Seiyama, T. 1979. "Study of metal oxide catalysts in the olefin oxidation from their reduction behavior--1. Reduction of various metal oxides with propylene". United States. https://doi.org/10.1002/chin.197926143.
@article{osti_6811713,
title = {Study of metal oxide catalysts in the olefin oxidation from their reduction behavior--1. Reduction of various metal oxides with propylene},
author = {Aso, I and Nakao, M and Yamazoe, N and Seiyama, T},
abstractNote = {At 500/sup 0/-550/sup 0/C, propylene reduced one or very few surface layers of the oxides of titanium, chromium, zinc, tin, indium, and tungsten. Carbon dioxide formation decreased and formation of partially oxidized products such as benzene and hexadiene increased to a maximum as the reaction progressed. The rates and product selectivities of the reduction of various other oxides varied, e.g., Bi/sub 2/O/sub 3/, was partly reduced to bulk metal with formation of 1,5-hexadiene, 1,3-cyclohexadiene, benzene, and carbon dioxide; and manganese dioxide was reduced in steps to bulk manganous oxide, with selectivity for benzene changing with each step. The oxides of vanadium, iron, cobalt, nickel, copper, and molybdenum also underwent bulk reduction. The coincident selectivities for acrolein, benzene or hexadiene, and carbon dioxide during reduction of a particular oxide and catalytic oxidation of propylene by that oxide suggests not only that oxide oxygens participate in the reaction, but that the metal-oxygen cleavage also controls the oxidation reaction. The relationship between metal oxide reducibility and catalytic activity and selectivity is further discussed.},
doi = {10.1002/chin.197926143},
url = {https://www.osti.gov/biblio/6811713}, journal = {J. Catal.; (United States)},
number = ,
volume = 57:2,
place = {United States},
year = {Sun Apr 01 00:00:00 EST 1979},
month = {Sun Apr 01 00:00:00 EST 1979}
}