发明名称 |
Separation and purification method of tert.-butyl-methylphenol isomers |
摘要 |
<p>A method for industrially advantageously and effectively separate 4M2B and 3M6B from a t-butylcresol mixture comprising 2-t-butyl-4-methylphenol (4M2B), 2-t-butyl-5-methylphenol (3M6B), compounds having a lower boiling point than that of 4M2B and compounds having a higher boiling point than that of 3M6B derived from an m,p-cresol mixture is provided, which comprises at least three times distillation operations.</p> |
申请公布号 |
EP0878457(A1) |
申请公布日期 |
1998.11.18 |
申请号 |
EP19980108727 |
申请日期 |
1998.05.13 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
IKIMI, KIYOSHI;TSUKADA, SUSUMU;TOMA, MASAAKI |
分类号 |
C07C37/74;C07C39/06;(IPC1-7):C07C37/74 |
主分类号 |
C07C37/74 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|