Methanol → Methanol methyl heptafluorobutyrate

In the specific embodiment herein described employing methanol and heptafluorobutyric acid as reactants, distillation of the resulting esterification reaction admixture results in a methanol/methyl heptafluorobutyrate azeotrope characterized by a boiling point of about 56°-58° C. at substantially atmospheric pressure. This azeotrope also is characterized by about 78-80 weight percent methyl heptafluorobutyrate and correspondingly about 22-20 weight percent methanol. It is noted that the specific azeotrope of my discovery is a minimum boiling azeotrope boiling at a temperature substantially below both the boiling point of methanol, 65° C., and of methyl heptafluorobutyrate, 80° C.

1. distillationdistillation of the resulting esterification reaction

ORDレコード

ord-5207402e86284320a62d0aeab6d64bbd

出典データセット

uspto-grants-1980_09

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US04224112