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Fractionation at total reflux. The Fenske equation in continuous fractional distillation is an equation used for calculating the minimum number of theoretical plates required for the separation of a binary feed stream by a fractionation column that is being operated at total reflux (i.e., which means that no overhead product distillate is being withdrawn from the column).
Richard Ferdinand “Dick” Fenske (May 23, 1929, in Milwaukee – December 14, 2011) was a chemist who taught at the University of Wisconsin–Madison for thirty years. [1] He was chair of the chemistry department from 1972 until 1977 and retired from teaching in 1999.
The Fenske–Hall method is a molecular orbital method in computational chemistry, usually applied to inorganic compounds. This method was developed in Richard F. Fenske's research group at the University of Wisconsin. The method is named after Fenske and Michael B. Hall, who co-authored the last paper [1] in its development. [2]
A. J. V. Underwood. University College of London. Developed a correlation to estimate the minimum reflux required to produce a specific concentration of a feed component in the distillate from a specified concentration in the feed. The Underwood equation is also known as the Underwood-Fenske equation. F. A. Zenz. Has published extensively on ...
The method works poorly for molecules that contain atoms of very different electronegativity. To overcome this weakness, several groups have suggested iterative schemes that depend on the atomic charge. One such method, that is still widely used in inorganic and organometallic chemistry is the Fenske-Hall method. [7] [8] [9]
A list of chemical analysis methods with acronyms. A. Atomic absorption spectroscopy (AAS) Atomic emission spectroscopy (AES) Atomic fluorescence spectroscopy (AFS) ...
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In general, for immersed boundary methods and related variants, there is an active research community that is still developing new techniques and related software implementations and incorporating related techniques into simulation packages and CAD engineering software.