| 摘要 |
<p>It is an object of the present invention to provide a process for producing highly pure acetonitrile having a low absorbance at a wavelength of 200 nm, which requires a small energy for purification, wherein a purification step is a simple process, and which remarkably reduces propionitrile contained in the acetonitrile. The invention relates to a process for producing highly pure acetonitrile, which comprises mixing a hydrous crude acetonitrile with an alkali, separating the resulting mixture into an acetonitrile phase and an aqueous phase, removing the aqueous phase, passing the resulting acetonitrile phase through a distillation step to obtain purified acetonitrile, and passing the resulting purified acetonitrile though a cation-exchange resin to obtain highly pure acetonitrile.</p> |
