摘要:
Hexane cannot be separated from vinyl acetate by conventional distillation or rectification because of the minimum boiling azeotrope. Hexane can be readily separated from vinyl acetate by using azeotropic distillation. Typical examples of effective agents are acetone, acetonitrile or methyl t-butyl ether.
摘要:
Octene-1 is difficult to separate from several of its isomers by conventional distillation or rectification because of the closeness of their boiling points. Octene-1 can be readily separated from its close boiling isomers by azeotropic or extractive distillation. Effective agents are: for azeotropic distillation, t-amyl methyl ether; for extractive distillation, isophorone.
摘要:
Toluene cannot be separated from methyl isobutyl ketone by conventional distillation or rectification because of the minimum boiling azeotrope. Toluene can be readily separated from methyl isobutyl ketone by using azeotropic distillation. Typical examples of effective agents are 1-butanol, 2-methoxyethanol and n-heptane.
摘要:
Formic acid difficult to separate from acetic acid by conventional distillation or rectification because of the close proximity of their boiling points. Formic acid can be readily separated from acetic acid by using azeotropic distillation. Effective agents are cyclopentane and tetrachloroethylene.
摘要:
The separation of vinyl acetate from methyl acrylate by distillation is difficult because of the closeness of their boiling points. Vinyl acetate can be readily removed from methyl acrylate by extractive distillation. Typical effective agents are phenol, methoxyethanol and isobutyl vinyl ether.
摘要:
Hexane is difficult to separate from vinyl acetate and/or methyl acrylate by conventional distillation or rectification because of the closeness of their boiling points. Hexane can be readily separated from vinyl acetate and/or methyl acrylate by extractive distillation. Effective agents are dimethylsulfoxide and dimethylformamide.
摘要:
Hexane cannot be removed from hexane--vinyl acetate--methyl acrylate mixtures because of the ternary azeotrope. Hexane can be readily removed from hexane--vinyl acetate--methyl acrylate mixtures by extractive distillation. Typical effective agents are phenol, diethylene glycol methyl ether and 2-nitropropane.
摘要:
Formic acid cannot be easily removed from formic acid-acetic acid mixtures by distillation because of the closeness of their boiling points. Formic acid can be readily removed from mixtures containing it and acetic acid by extractive distillation. Typical effective agents are 2-nitrotoluene, 1-nitropropane and m-nitrobenzoic acid.
摘要:
Hexane cannot be removed from hexane - vinyl acetate mixtures by distillation because of the minimum boiling azeotrope. Hexane can be readily removed from vinyl acetate by extractive distillation. Typical effective agents are phenol, 1-nitropropane and benzyl alcohol.