Fractional distillation is part of the essential experimental techniques taught to first-year chemistry students, especially during practical organic work. The characterization distillate generally involves measuring boiling temperature, refractive index, or infrared spectrum. In this paper, an unknown mixture composed two solvents given students in order be separated by fractional and characte...

Solvent-free optical resolution of N-methylamphetamine was developed by distillation after partial diastereoisomeric salt formation. From the 18 chiral acids tested by this method, five provide by this method resolution: O,O'-dibenzoyltartaric acid, O,O'-di-p-toluoyltartaric acid, 6-methoxy-alpha-methyl-2-naphthaleneacetic acid (Naproxen), the cis-permetrinic acid, and the 2-phenoxypropionic ac...

The vaporisation of ionic liquids has been investigated using temperature programmed desorption (TPD) and ultra-high vacuum (UHV) distillation. 1-Alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids, [C(n)C(1)Im][Tf(2)N] (n = 2, 8), have been distilled at UHV and T > 500 K in a specially designed still. The distillation process yielded spectroscopically pure ionic liquid di...

Lemongrass essential oil has many compounds appropriate for application in foods, cosmetics, and pharmaceutical products. Of these, citral is a high-value compound of interest to industry. This work aims evaluate the use vacuum fractional distillation separate lemongrass compounds, producing fractions containing high content. The effect process parameters, namely pressure, type column, energy i...

This paper deals with the fractional order multi-loop controller design for a distillation column. The idea is generalization of IMC-PID-FOF method developed monovariable systems to column model which multivariable. principle based on IMC paradigm and choice appropriate control configuration minimum interactions. proposed illustrated an example taken from literature.