the use of acetone is critical. It does not form an azeotrope with water, which means it has a different boiling point than water when dissolved in it. Added to this its low cost and volatility, it is
in the gaseous phase, is freed from acetone and other carbonyl compounds containing 3 carbon atoms, by submitting the crude ester to distillation in a fractionating column in the presence of an auxiliary liquid which forms with acetone an azeotrope having a lower boiling point than vinyl acetate....
consisting of chloro- and bromo-hydrocarbons having from two to three halogen atoms on the same carbon atom holding a hydrogen atom, and one or more of said halogens on adjacent carbon atoms, and which form a maximum boiling azeotrope with acetone and a minimum boiling azeotrope with water. ...
Isopropyl acetate and isopropyl alcohol were azeotropic mixtures with a minimum boiling point. To break the azeotrope of the above binary system and separate it, dibutyl ether and anisole were chosen as the extractive solvents in this co... W Wang,Y Zhang,T Zhang,... - 《Journal of Chemical...
(6), n-pentane and acetone azeotrope from overhead, condensed into the separator (12) to the dual-chamber separated extract phase splitter water overflow (9) of the extracted phase the cavity (14), after phase separation, the organic phase across the separator (12) into the overflow chamber...
THF and water form a minimum boiling homogeneous azeotrope with a boiling point of 63.43 °C and an azeotropic composition of 82.87 mol% of THF. The most common extractive distillation has two columns, the extractive column (EC) and the solvent regeneration column (SRC). The binary feed ...
It is difficult for conventional distillation to separate them because acetone and chloroform attract each other, forming hydrogen bonds and producing a maximum-boiling azeotrope [1]. In various techniques of separating the azeotropic system, extractive distillation is commonly used in industry and a ...