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: The solubility of stearic acid in ethanol, methanol, ethyl acetate, and acetone has been measured gravimetrically at various temperatures ranging from 301 to 313 K at atmospheric condition as mentioned in this paper.
Abstract: The solubility of stearic acid in ethanol, methanol, ethyl acetate, and acetone has been measured gravimetrically at various temperatures ranging from 301 to 313 K at atmospheric condition. The solubility of stearic acid in ethyl acetate was found to be the highest, followed by ethanol, acetone and methanol. All experimental data were correlated using non-ideal solution models, namely, the modified Apelblat and the Buchowski equations. The calculated results agreed well with the experimental data.
51 citations
TL;DR: In this paper, the authors reported rejection of organic solutes with molecular weight (MW) in a range of 180-600 in aqueous and organic solvents through several commercial solvent resistant nanofiltration membranes (SRNF).
51 citations
TL;DR: In this article, the effects of feed concentration and feed temperature on the pervaporation performance, total and partial permeate fluxes as well as organic selectivity, have been investigated, and the overall mass transfer coefficients have been determined and discussed for each organic-water mixture at different conditions of feed temperature and initial organic feed concentrations.
51 citations
TL;DR: In this paper, a dual-layer hollow fibers for pervaporation dehydration of acetone for industrial and biofuel separations were developed, and both thermal and chemical crosslinking modifications were applied to the membranes to investigate their effectiveness to overcome acetone-induced swelling.
Abstract: Acetone dehydration via pervaporation is challenging, because acetone and water have close molecular sizes, and acetone has a much higher vapor pressure than water. Acetone is also a powerful solvent, which dissolves or swells most polymers. We have developed novel polybenzimidazole/BTDA-TDI/MDI (PBI/P84) dual-layer hollow fibers for pervaporation dehydration of acetone for industrial and biofuel separations. Both thermal and chemical crosslinking modifications were applied to the membranes to investigate their effectiveness to overcome acetone-induced swelling. Thermal treatment can effectively enhance separation performance, but performance stability can only be achieved through the crosslinking modification of PBI. Crosslinking by p-xylene dichloride followed by a thermal treatment above 250°C show significant effectiveness to improve and stabilize pervaporation performance. The fractional free volume of the PBI selective layer reduces from 3.27 to 1.98% and 1.33%, respectively, after thermal treatment and a combination of chemical/thermal crosslinking modifications characterized by positron annihilation spectroscopy. © 2011 American Institute of Chemical Engineers AIChE J, 2012
51 citations
TL;DR: In this article, a facile method for the preparation of CoFe2O4 nanoparticles with a small size of 10 nm was reported, which exhibited high sensitivity to acetone.
51 citations