Topic
Methyl isobutyl ketone
About: Methyl isobutyl ketone is a research topic. Over the lifetime, 2071 publications have been published within this topic receiving 26976 citations. The topic is also known as: Hexone & Isobutyl methyl ketone.
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TL;DR: The proposed APDC method is applicable to real samples and the sensitivity achieved with the two reagents is similar, but the selectivity provided by APDC exceeds that of dithizone.
38 citations
TL;DR: Pd-doped propyl sulfonic acid-functionalized hollow nanospheres proved to be efficient bifunctionalized catalysts for the one-pot synthesis of methyl isobutyl ketone (MIBK) from acetone and hydrogen in liquid phase and were among the best reported so far for mesoporous silica-based catalysts.
Abstract: Pd-doped propyl sulfonic acid-functionalized hollow nanospheres proved to be efficient bifunctionalized catalysts for the one-pot synthesis of methyl isobutyl ketone (MIBK) from acetone and hydrogen in liquid phase. These hollow nanospheres exhibited a higher activity than their bulk mesoporous counterparts (SBA-15 or FDU-12), mainly due to the short diffusion resistance of hollow nanospheres. Hollow nanospheres with silica frameworks showed higher activity and selectivity for MIBK than those with ethane-bridged frameworks, suggesting that hollow nanospheres with hydrophilic surface properties favor the formation of MIBK. This is probably due to the increased affinity of the hydrophilic surface towards acetone and its decreased affinity towards MIBK, which precludes deep condensation of MIBK with acetone. Under optimal conditions, up to 90 % selectivity for MIBK can be obtained with conversions of acetone as high as 43 %. This result is among the best reported so far for mesoporous silica-based catalysts. The control/fine-tuning of morphology and surface properties provides an efficient strategy for improving the catalytic performance of solid catalysts.
38 citations
TL;DR: MALs associated with such critical responses may be useful in the establishment of safe levels of occupational exposure to ketones, a conclusion supported by the linear relationship that was found to exist between MALs and occupational standards.
37 citations
TL;DR: A novel synthesis method of nanoscale zerovalent iron (NZVI) using Fe sources in coal fly ash (CFA) for the oxidative degradation of methyl orange by Fenton reaction and the heterogeneous Fenton Reaction initiated by NZVI-CFA with H2O2 showed reactivity similar to that of the homogeneous Fetus reaction.
37 citations
TL;DR: In this article, the authors explored the advantages of employing hydrophilic hollow fiber membranes for efficient membrane solvent back extraction via novel solvent-resistant hydrophilic hollow fiber membrane, which provided a stable immobilized organic-aqueous interface over a reasonable range of breakthrough pressures.
37 citations