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: In this article, a modified Rose vapor recirculating-type equilibrium still was used to check the thermodynamic consistency of the experimental data, and the non-random two-liquid, universal quasichemical, and Wilson models were used for correlation and regression of experimental data.
Abstract: Vapor–liquid equilibrium data for the binary systems of 1-butanol + N,N-dimethylacetamide and methyl isobutyl ketone + N,N-dimethylacetamide were measured at 101.3 kPa. The vapor–liquid equilibrium experiments of two systems were carried out in the modified Rose vapor recirculating-type equilibrium still. Van Ness and Herington tests were used to check the thermodynamic consistency of the experimental data. After meeting the thermodynamic consistency test, the nonrandom two-liquid, universal quasichemical, and Wilson models were used for correlation and regression of the experimental data. The binary interaction parameters of each model for the two binary systems were obtained. Comparing the equilibrium temperature and vapor-phase mole fraction for the experimental value and the calculated value, it shows that the two models had a good correlation with the experimental data.
7 citations
TL;DR: In this paper, phase equilibria governing the reactive extraction of gluconic acid from aqueous solution into solutions of trioctyl methylammonium chloride in the single solvents cyclohexane, hexane, 2,2,4-trimethyl pentane, 1-butanol, toluene, methyl isobutyl ketone, and ethyl acetate are investigated.
Abstract: Phase equilibria governing the reactive extraction of gluconic acid from aqueous solution into solutions of trioctyl methylammonium chloride in the single solvents cyclohexane, hexane, 2,2,4-trimethyl pentane, 1-butanol, toluene, methyl isobutyl ketone, and ethyl acetate are investigated. All measurements were carried out at 298.15 K. The distribution coefficients, D, loading factors, Z, and extraction efficiencies, E, are derived. The maximum removal of gluconic acid is mass 69% with methyl isobutyl ketone with a 1.71 mol·L-1 initial concentration of trioctyl methylammonium chloride.
7 citations
TL;DR: In this article, a self-aldol condensation of methyl isobutyl ketone (MIBK) followed by a one-step hydrodeoxygenation (HDO) was proposed for aviation fuel production.
7 citations
Patent•
14 Aug 1992
TL;DR: In this article, the subject novolak having low softening temperature and excellent handleability and workability, and giving a cured product having excellent heat-resistance in high yield by reacting an o-cresol binuclear dimethylol compound with an aromatic compound having allyl group, etc.
Abstract: PURPOSE:To obtain the subject novolak having low softening temperature and excellent handleability and workability, and giving a cured product having excellent heat-resistance in high yield by reacting an o-cresol binuclear dimethylol compound with an aromatic compound having allyl group, etc. CONSTITUTION:The objective tetra-nuclear phenolic novolak expressed by formula III (R1, R2, R6 and R7 are H or allyl; R3, R4, R5 and R8 to R10 are H, <=5C alkoxy or <=5C alkyl) can be produced by adding a compound of formula II (R11 and R12 are H or allyl; R13 and R15 are H, <=5C alkoxy or <=5C alkyl) (e.g. 2-allylphenol) to an o-cresol binuclear dimethylol compound of formula I, stirring the mixture in nitrogen atmosphere at room temperature, adding p-toluenesulfonic acid to the mixture, reacting at 50 deg.C for 2hr, adding an organic solvent such as methyl isobutyl ketone to dissolve the reaction product, washing the obtained solution with water, separating the organic layer and finally distilling out the solvent.
7 citations
TL;DR: The FT‐IR method proved suitable for use outside the laboratory and fulfilled the quality criteria for analysis of solvents in breath as well as the bias of ethanol and methanol analyses due to coexistingsolvents.
Abstract: The study aim was to evaluate the feasibility of a Fourier-transformed infrared (FT-IR) analyzer for out-of-laboratory use by screening the exhalations of inebriated individuals, and to determine analysis quality using common breath components and solvents. Each of the 35 inebriated participants gave an acceptable sample. Because of the metabolism of 2-propanol, the subjects exhaled high concentrations of acetone in addition to ethanol. Other volatile ingredients of technical ethanol products (methyl ethyl ketone, methyl isobutyl ketone, and 2-propanol) were also detected. The lower limits of quantification for the analyzed components ranged from 1.7 to 12 microg/L in simulated breath samples. The bias was +/-2% for ethanol and -11% for methanol. Within-day and between-day coefficients of variation were <1% for ethanol and <4% for methanol. The bias of ethanol and methanol analyses due to coexisting solvents ranged from -0.8 to +2.2% and from -5.6 to +2.9%, respectively. The FT-IR method proved suitable for use outside the laboratory and fulfilled the quality criteria for analysis of solvents in breath.
7 citations