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Fractional distillation. Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate.
McCabe–Thiele method. The McCabe–Thiele method is a technique that is commonly employed in the field of chemical engineering to model the separation of two substances by a distillation column. [ 1][ 2][ 3] It uses the fact that the composition at each theoretical tray is completely determined by the mole fraction of one of the two components.
Size-exclusion chromatography, also known as molecular sieve chromatography, [ 1] is a chromatographic method in which molecules in solution are separated by their size, and in some cases molecular weight. [ 2] It is usually applied to large molecules or macromolecular complexes such as proteins and industrial polymers. [ 3]
Lever rule. In chemistry, the lever rule is a formula used to determine the mole fraction ( xi) or the mass fraction ( wi) of each phase of a binary equilibrium phase diagram. It can be used to determine the fraction of liquid and solid phases for a given binary composition and temperature that is between the liquidus and solidus line.
1: The heat source to boil the mixture. 2: round-bottom flask containing the mixture to be boiled. 3: the head of the still. 4: mixture boiling-point thermometre. 5: the condenser of the still. 6: the cooling-water inlet of the condenser. 7: the cooling-water outlet of the condenser. 8: the distillate-receiving flask. 9: vacuum pump and gas inlet.
A laboratory fractionating column is a piece of glassware used to separate vaporized mixtures of liquid compounds with close volatility. Most commonly used is either a Vigreux column or a straight column packed with glass beads or metal pieces such as Raschig rings. Fractionating columns help to separate the mixture by allowing the mixed vapors ...
Scheil equation. In metallurgy, the Scheil-Gulliver equation (or Scheil equation) describes solute redistribution during solidification of an alloy . Solidification of a binary Cu Zn alloy, lever rule, with composition of 30% of Zinc in weight, using open version of Computherm Pandat. Solidification -using the Scheil rule - of a binary Cu Zn ...
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