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- W199406772 abstract "The infra-red identification of adsorbed species during the course of the catalytic isomerization of 1-butene on delta alumina shows that, depending on the temperature of the activation of alumina, three different species are observed on the catalyst surface. Two of these adsorbed phases are reversibly held but the third one is irreversibly adsorbed and deactivates the catalyst towards the isomerization. One of the reversibly adsorbed species is the active intermediate in the isomerization. It appears on the surface only if alumina is activated at T > 250°C. The same temperature threshold applies to the formation of the deactivating species which presents a saturated, carbonyl-type, structure. The presence of the previous adsorbed phases is confirmed by microgravimetric measurements. The catalytic activity of delta alumina in the isomerization of 1-butene is attributed to Al3+ ions. The same ions paired with O2- ions are sites for the adsorption of the inhibiting species." @default.
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- W199406772 date "1980-01-01" @default.
- W199406772 modified "2023-09-26" @default.
- W199406772 title "Infra-Red Absorption Study of the Poisoning Step During the Isomerization of 1-Butene on Delta Alumina." @default.
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- W199406772 doi "https://doi.org/10.1016/s0167-2991(08)65249-0" @default.
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