| Ni/TiO_2催化剂用于催化加氢制备邻氨基对叔丁基苯酚 |
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| 引用本文： | 高川,梅华,高传林,张虎. Ni/TiO_2催化剂用于催化加氢制备邻氨基对叔丁基苯酚[J]. 石油化工, 2011, 40(2): 193-197 |
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| 作者姓名： | 高川 梅华 高传林 张虎 |
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| 作者单位： | 南京工业大学,化学化工学院,江苏,南京,210009 |
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| 摘 要： | 采用浸渍法制备了Ni/TiO_2催化剂,通过BET,XRD,TPR技术对催化剂进行了表征,考察了Ni/TiO_2催化剂用于邻硝基对叔丁基苯酚催化加氢制备邻氨基对叔丁基苯酚反应的性能,并对合成工艺条件进行了优化。实验结果表明,随着Ni负载量的增加,Ni/TiO_2催化剂活性和选择性逐渐提高,当Ni负载量(质量分数)达到20%时,催化剂活性和选择性趋于稳定,在70℃、1.0MPa、溶剂乙醇与反应物的质量比为2.0:1、搅拌转速1000 r/min的反应条件下,邻硝基对叔丁基苯酚的转化率和邻氨基对叔丁基苯酚的选择性均超过99%。Ni/TiO_2催化剂重复使用11次后仍有良好的活性和选择性,具有较好的工业应用前景。
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| 关 键 词： | 镍催化剂 加氢 邻硝基对叔丁基苯酚 邻氨基对叔丁基苯酚 |
Preparation of 2-Amino-4-tert-Butylphenol by Hydrogenation over Ni/TiO2 Catalyst |
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| Gao Chuan,Mei Hua,Gao Chuanlin,Zhang Hu. Preparation of 2-Amino-4-tert-Butylphenol by Hydrogenation over Ni/TiO2 Catalyst[J]. Petrochemical Technology, 2011, 40(2): 193-197 |
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| Authors: | Gao Chuan Mei Hua Gao Chuanlin Zhang Hu |
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| Affiliation: | Gao Chuan,Mei Hua,Gao Chuanlin,Zhang Hu (College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing Jiangsu 210009,China) |
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| Abstract: | Ni/TiO_2 catalysts were prepared by impregnation method and characterized by means of BET,XRD and TPR.The performances of the catalysts in hydrogenation of 2-nitro-4-tert- butylphenol to 2-amino- 4-tert-butylphenol were investigated.The results indicated that the activities and the selectivities of the catalysts in the hydrogenation increased with increasing of nickel loading.But when the nickel loading(mass fraction) was more than 20%,the activity and the selectivity changed little. Under the optimal react... |
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| Keywords: | nickel catalyst hydrogenation 2-nitro-4-tert-butylphenol 2-amino-4-tert-butylphenol |
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