| 摘要 |
<p>Described is a process for purifying acetonitrile of HPLC degree from industrial acetonitrile, using a mixture of acid, base and neutral resins of ionic exchange. The process consists in loading the resins in a reactor containing industrial acetonitrile, agitating the same for about 90-120 min at a temperature of 10-40°C, discharging the resins. The solvent is distilled, using a vigreaux column, the heads and tails being removed, then obtaining acetonitrile of HPLC degree in the distilled body.</p> |
