发明名称 |
Gas phase hydrogenation of phenol to cyclohexanone - using palladium catalyst, in the presence of a gaseous basic nitrogen cpd. to increase rate of reaction |
摘要 |
<p>Cyclohexanone (I) is made by gas phase hydrogenation of phenol with a Pd catalyst in the presence of a basic N cpd. which is gaseous under the prevailing conditions. Pref. basic N cpds. are ammonia or aliphatic amines with 1-6C in the hydrocarbon gp. the basic cpd. is used e.g. at 0.5-100 ppm (vol.), esp. 5-200 ppm on the gas mixt. The catalyst used is pref. a Pd-on-Al2O3 catalyst and the concn. of Pd in the catalyst is pref. 0.1-10, esp. 0.2-1 wt.%. The catalyst may also contain activators such as Na2CO3 or NaOH in an amt. of 0.1-10 wt.% on the catalyst. The presence of the basic N cpd. increases the rate of reaction in the hydrogenation reaction.</p> |
申请公布号 |
NL7704346(A) |
申请公布日期 |
1978.10.24 |
申请号 |
NL19770004346 |
申请日期 |
1977.04.21 |
申请人 |
STAMICARBON B.V. TE GELEEN. |
发明人 |
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分类号 |
C07C45/00;(IPC1-7):07C49/30;07C45/00 |
主分类号 |
C07C45/00 |
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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