发明名称 |
PROCESS FOR PRODUCING HIGHLY PURE PHENOL |
摘要 |
A process for producing a highly pure phenol, in which a crude phenol obtained from an acid-decomposition product of cumene hydroperoxide and having an alpha -methylstyrene content of 15 % by weight or less is catalytically treated with an acidic gamma -alumina catalyst having a specific surface area of 80 to 400 m<2>/g and an acid strength, according to Hammett's acidity function (Ho), of 3</=Ho</=6.8 to convert aliphatic and aromatic carbonyl compounds contained in the crude phenol into high-boiling compounds without causing the substantial formation of a dimer of alpha -methylstyrene contained in the crude phenol, and then, a phenol and the so-formed high-boiling compounds were separated by distillation. |
申请公布号 |
KR960002596(B1) |
申请公布日期 |
1996.02.23 |
申请号 |
KR19930005377 |
申请日期 |
1993.03.31 |
申请人 |
MITSUI PETROCHEMICAL IND. K.K. |
发明人 |
SHIRAHATA, TATSUO;IMAMURA, TETSUO |
分类号 |
B01J21/04;C07B63/02;C07C37/08;C07C37/74;C07C37/86;C07C39/04 |
主分类号 |
B01J21/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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