| 用硅钨、磷钨杂多酸催化合成双酚A的动力学 |
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| 引用本文： | 张晋芬,叶兴凯,吴越.用硅钨、磷钨杂多酸催化合成双酚A的动力学[J].石油化工,1993(2). |
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| 作者姓名： | 张晋芬 叶兴凯 吴越 |
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| 作者单位： | 承德高等技术专科学校化工系，中国科学院长春应用化学研究所，中国科学院长春应用化学研究所 长春 130022，长春 130022 |
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| 摘 要： | 以硅钨和磷钨杂多酸为催化剂,研究了由丙酮和苯酚脱水缩合生成双酚A的反应动力学。结果表明,杂多酸的催化活性不如盐酸的,而且反应机理不同;硅钨杂多酸的催化活性高于磷钨杂多酸。由反应温度在60—80℃范围内的各速率常数及催化剂浓度为0.5—4％范围内各速率常数的测定,求得硅钨、磷钨杂多酸的反应活化能分别为86.9、88.0 kJ/mol;催化反应级数分别为0.97、0.77。
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| 关 键 词： | 硅钨 磷钨 催化合成 双酚A |
A Kinetics Study on the Synthesis of Bisphenol A with SiW_(12)and PW_(12)Heteropolyacids as Catalysts |
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| Zhang Jinfen,YeXingkai Wu Yue.A Kinetics Study on the Synthesis of Bisphenol A with SiW_(12)and PW_(12)Heteropolyacids as Catalysts[J].Petrochemical Technology,1993(2). |
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| Authors: | Zhang Jinfen YeXingkai Wu Yue |
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| Affiliation: | Zhang Jinfen~*,YeXingkai Wu Yue |
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| Abstract: | The kinetics of the condensation of phenol and acetone for synthesizing bisphenol A using hete ropolyacids SiW_(12) and PW_(12) as catalysts was investigated. The resuits showed that the activity of heteropolyacid is lower than that of HCl, and also, the mechanism is different. Moreover, SiW_(12) is more active than PW_(12). From the rate constant measured in the temperature range of 60-80℃ and at different catalyst concentration from 0.5 to 4.0％, the activation energy as well as the reactionorder with respect to SiW__(12) and PW_(12)were SiW_(12). 86.9kJ/mol, 0.97; PW_(12); 88.0k J/mol, 0.77. |
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| Keywords: | SiW_(12) PW_(12) bisphenol A |
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