| The preparation of terephthalic acid by solvent-free oxidation of p-xylene with air over T（p-C1）PPMnC1 and Co（OAc）2 |
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| 作者姓名： | Yang Xiao Xiao Yan Zhang Qin Bo Wang Ze Tan Can Cheng Guo Wei Deng Zhi Gang Liu He Fei Zhang |
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| 作者单位： | College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China |
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| 摘 要： | An attempt has been made to prepare terephthalic acid（TPA） by solvent-free oxidation of p-xylene（PX） with air over tetra（pchlorophenylporphinato） manganese chloride（T（p-Cl）PPMnCl） and cobalt acetate.The co-catalysis between T（p-Cl）PPMnCl and Co（OAc）2 has been discovered under solvent-free conditions.TPA yield could be increased significantly when T（p-Cl）PPMnCl and Co（OAc）2 were used together.The addition of T（p-Cl）PPMnCl into the reaction mixture over Co（OAc）2 significantly accelerated the rate-determining step of the oxidation process of PX to TPA.The effect of temperature on reaction was also investigated.
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| 关 键 词： | Terephthalic acid Solvent-free p-Xylene Oxidation Manganese porphyrin Cobalt acetate |
The preparation of terephthalic acid by solvent-free oxidation of p-xylene with air over T(p-Cl)PPMnCl and Co(OAc)_2 |
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| Yang Xiao,Xiao Yan Zhang,Qin Bo Wang,Ze Tan,Can Cheng Guo,Wei Deng,Zhi Gang Liu,He Fei Zhang.The preparation of terephthalic acid by solvent-free oxidation of p-xylene with air over T(p-Cl)PPMnCl and Co(OAc)_2[J].Chinese Chemical Letters,2011,22(2):135-138. |
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| Authors: | Yang Xiao XiaoYan Zhang Qin Bo Wang Ze Tan Can Cheng Guo Wei Deng Zhi Gang Liu He Fei Zhang College of Chemistry Chemical Engineering Hunan University Changsha China |
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| Institution: | College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | An attempt has been made to prepare terephthalic acid (TPA) by solvent-free oxidation of p-xylene (PX) with air over tetra(p-chlorophenylporphinato)manganese chloride (T(p-Cl)PPMnCl) and cobalt acetate. The co-catalysis between T(p-Cl)PPMnCl and Co(OAc)2 has been discovered under solvent-free conditions. TPA yield could be increased significantly when T(p-Cl)PPMnCl and Co(OAc)2 were used together. The addition of T(p-Cl)PPMnCl into the reaction mixture over Co(OAc)2 significantly accelerated the rate-determining step of the oxidation process of PX to TPA. The effect of temperature on reaction was also investigated. |
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| Keywords: | Terephthalic acid Solvent-free p-Xylene Oxidation Manganese porphyrin Cobalt acetate |
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