发明名称 |
Process for preparing an ortho-alkylated phenol |
摘要 |
The present invention provides an improved process for the production of ortho-alkyl phenols by vapor phase reaction of a phenol having at least one ortho-hydrogen with an alcohol, the improvement comprises soaking manganic oxide in an aqueous solution of alkali metal salt, separating the soaked manganic oxide from the solution, drying and calcining the soaked manganic oxide at a temperature of 300 DEG -600 DEG C. for a period of 1-3 hours to form an alkali metal oxide thereon, wherein the weight ratio of the alkali metal oxide to the manganic oxide is 0.5-0.0001 wt %, preferably 0.1-0.001 wt %.
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申请公布号 |
US5175377(A) |
申请公布日期 |
1992.12.29 |
申请号 |
US19910814597 |
申请日期 |
1991.12.30 |
申请人 |
CHINA TECHNICAL CONSULTANTS, INC. |
发明人 |
HO, LING-WEN;LIN, TRONG-GOANG;PENG, YUNG-CHU |
分类号 |
B01J23/889;C07C37/16 |
主分类号 |
B01J23/889 |
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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