azeotrope

(redirected from azeotropic)
Also found in: Dictionary, Medical.

azeotrope

[ā′zē·ə‚trōp]
(chemistry)
References in periodicals archive ?
* for the product A/azeotropic agent cut, varying the feed location for the azeotropic agent, varying the feed rate, decreasing the amount of agent in the initial charge, varying the reflux ratio, and varying the distillate rate.
Table 2: Thermodynamic Cycle Performance Average Suction Discharge Comp Compressor Temp Pressure Pressure Ratio Disch Temp Glide C kPa kPa C(F) (F) (Psia) (Psia) 134a 0(0) 201 (29) 1017 5.1 90 (194) (148) XP-10 0.02 223 (32) 1070 4.8 82 (180) (0.04) (155) Capacity kJ/[m.sup.3] Capacity COP COP Rel to (Btu/f[t.sup.3]) Rel to R-134a R-134a 134a 1497 (40.2) 100% 3.06 100% XP-10 1575 (42.3) 105% 3.04 99% XP10 has essentially no temperature glide due to its azeotropic nature.
Floudas, "Locating all Azeotropes in Homogeneous Azeotropic Systems," Comput.
In spite of this, the water percentage in the permeate was more than 99% even if we consider the lowest selectivity at 25 mass% of water, signifying that membranes can be successfully employed for the separation of water-dioxane mixtures at any composition in the vicinity of the azeotropic point.
Where azeotropic or nearly azeotropic blends can be developed that take the best advantages of molecules like HFO-1234yf, and overcome the deficiencies of single molecules by thoughtful blend design, they should be thoroughly considered.
reactive distillation , three-phase distillation, heterogeneous azeotropic distillation, etc.
Briefly, 4 mL of urine was spiked with an isotopically labeled internal standard mixture and concentrated to dryness using an azeotropic codistillation with acetonitrile.
It has been used to separate close boiling liquids and azeotropic mixtures, which are difficult to separate using conventional separation processes, such as distillation [1-4].
(2005) have reported the use of mathematical programming for the synthesis of complex distillation columns for the separation of zeotropic and azeotropic mixtures.
Sample preparation included solid-phase extraction, azeotropic distillation, and pentafluoro(methyl)benzylbromide derivatization.
The purpose of the first step was mainly to form the bisphenol salt and dehydrate water (with the azeotropic role of toluene).