Topic
Acetone
About: Acetone is a research topic. Over the lifetime, 9458 publications have been published within this topic receiving 120867 citations. The topic is also known as: propanone & dimethylketone.
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TL;DR: In this article, surface-phase oxides of niobia on silica substrate ((Nb2O5/SiO2), NS(x)) were used as supports for palladium catalysts for the synthesis of methyl isobutyl ketone (MIBK) from acetone and hydrogen in liquid phase.
Abstract: The surface-phase oxides of niobia on silica substrate ((Nb2O5/SiO2), NS(x)) were prepared and characterized. Such oxides were used as supports for palladium catalysts. The one-step synthesis of methyl isobutyl ketone (MIBK) from acetone and hydrogen in liquid phase was also investigated over Pd/NS(x) catalysts. Experimental results indicate that these catalysts were effective for the formation of MIBK; since little of the parallel by-product of isopropanol (IPA) was formed, these catalysts reached selectivities of 88–92% MIBK and 2–3% IPA at 30–35% conversion. The reactivity of Pd/NS(x) declined obviously with an increase of water content that accumulated in a semi-batch reaction system. The water could be partially expelled and the deactivation of catalysts could be improved by using a fixed bed continuous flow reaction system.
52 citations
TL;DR: In this paper, the experimental solubility data were correlated with the Nývlt model and they concluded that the model is capable of representing properly the experimental data, concerning the ideality of the system, was ethanol and the highest value of average percent logarithmic deviation was found in propylene glycol solutions.
Abstract: As one of the most regularly traded-in medicines in the world, acetylsalicylic acid has been scarcely researched when in solution. This study is aimed at determining the solubility of acetylsalicylic acid in ethanol, acetone, propylene glycol, and 2-propanol, in addition to comparing their solubility values with the expected from an ideal solution. The solubility of acetylsalicylic acid is highest in acetone in all studied temperature ranges until T/K = 326.3. Propylene glycol presents lower solubility data in all studied temperature ranges. The solvent that presented the lowest average percent logarithmic deviation, concerning the ideality of the system, was ethanol, and the highest value of average percent logarithmic deviation was found in propylene glycol solutions. The experimental solubility data were correlated with the Nývlt model. We conclude that the Nývlt model is capable of representing properly the experimental data.
52 citations
TL;DR: In this paper, the sorption and kinetics of acetone uptake in solvent cast films of poly(ethylene terephthalate) are reported at 35°C for acetone pressures ranging from 0 to 7.3 cm 3 Hg.
51 citations
TL;DR: In this article, the authors showed that 5-(hydroxymethyl) furfural (HMF) and acetone can be selectively converted into a range of biomass-derived high molecular weight chemicals in high yield (>90%).
51 citations
TL;DR: In this paper, the results of the hydration reaction of α-pinene catalysed by polydimethylsiloxane (PDMS) membranes filled with zeolite USY or a surface modified activated carbon are reported.
51 citations