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Selective hydrogenation of acetic acid towards acetaldehyde

✍ Scribed by R. Pestman; R.M. Koster; V. Ponec

Book ID
104589662
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
395 KB
Volume
113
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

As a model reaction for the selective hydrogenation of carboxylic acids towards aldehydes, the reaction of acetic acid towards acetaldehyde has been investigated. Various oxides are used as catalysts, including platinum‐enriched oxides. It appeared that oxides with a moderate metal‐oxygen bond strength are good catalysts, provided that a source of activated hydrogen is present. On exposure to molecular hydrogen zero‐valent metals can produce activated hydrogen. Addition of precious metals, such as Pt, or completely reducing part of the oxidic catalyst can provide the zero‐valent metal. The hydrogenation probably occurs on the oxidic surface by a Mars and Van Krevelen type of mechanism.

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Syngas reactions XII. The selective prep
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✍ John F Knifton; J J Lin πŸ“‚ Article πŸ“… 1989 πŸ› John Wiley and Sons 🌐 English βš– 351 KB πŸ‘ 2 views

Several classes of commercially important oxygenates, including acetaldehyde, ethanol, methyl acetate, ethyl acetate and acetic acid as well as C1-C3 alcohol/acetate ester mixtures, may each be selectively generated from synthesis gas through the application of novel classes of rutheniumcontaining b