| 摘要 |
<p>1,188,477. Purification of phenol. RHONEPOULENC S.A. 29 May, 1968 [29 May, 1967], No. 25758/68. Heading C2C. A process for the purification of phenol resulting from the splitting of isopropylbenzene hydroperoxide comprising passing oxygen or oxygen-containing gas through the phenol at a pH of at least 7 at elevated temperature and then fractionally distilling the phenol.</p> |
