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 paper, the significance of abiological production of partially oxidized volatile organic carbons (POVOCs) from the decay of dead plant material was called to the attention of the authors.
Abstract: In this paper, attention is called to the significance of abiological production of partially oxidized volatile organic carbons (POVOCs) from the decay of dead plant material. Measured relative emission of acetone and methanol can be at least 10−4 and 3 - 5 × 10−4 g g−1of decaying dry plant matter, respectively. If these results may be extrapolated, global annual emissions of 6–8 Tg of acetone and 18 – 40 Tg of methanol would result, adding strongly to the estimated total emissions of these compounds to the atmosphere. Because acetone and methanol, through OH and HO2 formation, play significant roles in the chemistry of the atmosphere, further research is strongly needed to quantify the emissions of acetone, methanol, and other POVOCs
253 citations
TL;DR: In this article, the subject of metal-catalyzed oxidations of organic compounds in the liquid phase, largely within a mechanistic framework, has been discussed and a better understanding of the catalytic action of metal complexes is essential from the view of increasing selectivity and efficiency.
Abstract: Publisher Summary The liquid phase oxidation of hydrocarbons by molecular oxygen forms the basis for a wide variety of petrochemical processes including the manufacture of phenol and acetone from cumene, adipic acid from cyclohexane, terephthalic acid from p -xylene, acetaldehyde and vinyl acetate from ethylene, and propylene oxide from propylene. The majority of these processes employ catalysis by transition metal complexes to attain maximum selectivity and efficiency. This chapter describes the subject of metal-catalyzed oxidations of organic compounds in the liquid phase, largely within a mechanistic framework. A better understanding of the catalytic action of metal complexes is essential from the point of view of increasing selectivity and efficiency. Metal-catalyzed oxidations may be conveniently divided into two types—homolytic and heterolytic. The homolytic catalysis involves soluble transition metal salts (homogeneous), such as the acetates or naphthenates of Co, Mn, and Cu, or the metal oxides (heterogeneous). Heterolytic catalysis involves reactions of organic substrates coordinated to transition metals.
251 citations
TL;DR: This study presents a general method of blocking acetone production by Clostridium and demonstrates the industrial potential of strain 2018adc, which resulted in an increased butanol ratio of 82% and a corresponding improvement in the overall yield of butanol from 57% to 70.8%.
249 citations
TL;DR: The extent of organic solvent and water retention in comonomer blends with different hydrophilicity after solvent evaporation is examined, and the extent of tracer penetration in polymerised films prepared from these resins is examined.
248 citations
TL;DR: In this article, a silicalite-silicon composite membrane (306μm thick) was made in a laboratory and characterized for flux and selectivities using model acetone ethanol butanol solution.
240 citations