| 2,5-二羟基对苯二甲酸的合成及表征 |
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| 引用本文： | 漆琳,沈玉堂,殷恒波,嵇学林,姜廷顺,陆惠红. 2,5-二羟基对苯二甲酸的合成及表征[J]. 精细石油化工, 2007, 24(1): 23-25 |
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| 作者姓名： | 漆琳 沈玉堂 殷恒波 嵇学林 姜廷顺 陆惠红 |
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| 作者单位： | 江苏大学化学化工学院,江苏,镇江,212013;江苏大学化学化工学院,江苏,镇江,212013;江苏大学化学化工学院,江苏,镇江,212013;江苏大学化学化工学院,江苏,镇江,212013;江苏大学化学化工学院,江苏,镇江,212013;江苏大学化学化工学院,江苏,镇江,212013 |
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| 摘 要： | 采用溶剂法以对苯二酚和氢氧化钾为原料,在高压二氧化碳条件下合成了2,5-二羟基对苯二甲酸,考察了反应压力、溶剂、搅拌速率及氢氧化钾用量对收率的影响,用高效液相法分析了产物的纯度,用元素分析、FT-IR、~1H NMR和~(13)C NMR方法表征了产物结构。较佳合成条件为:以正辛烷为溶剂,反应温度220℃,m (对苯二酚):m(KOH)=2．75:7,反应压力11．5MPa,搅拌速率400r/min,反应时间4h。在此条件下,2, 5-二羟基对苯二甲酸的收率为76．52%。
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| 关 键 词： | 2 5-二羟基对苯二甲酸 合成 表征 溶剂法 |
| 收稿时间： | 2006-08-22 |
| 修稿时间： | 2006-12-26 |
SYNTHESIS AND CHARACTERIZATION OF 2,5-DIHYDROXYTEREPHTHALIC ACID |
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| Qi Lin,Shen Yutang,Yin Hengbo,Ji Xuelin,Jiang Tingshun,Lu Huihong. SYNTHESIS AND CHARACTERIZATION OF 2,5-DIHYDROXYTEREPHTHALIC ACID[J]. Speciality Petrochemicals, 2007, 24(1): 23-25 |
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| Authors: | Qi Lin Shen Yutang Yin Hengbo Ji Xuelin Jiang Tingshun Lu Huihong |
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| Affiliation: | Faculty of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China |
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| Abstract: | 2,5-Dihydroxyterephthalic acid was prepared from hydroquinone and potassium hydroxide. The effects of the reaction pressure,solvent,stirring rate and the amounts of KOH and K_2CO_3 on the yield of 2,5-dihydroxyterephthalic acid were examined.The purity of the product was analyzed by HPLC and the structure of product was characterized by elementary analysis,FT-IR,~1H NMR and ~(13)C NMR.Under the following conditions:hydroquinone to KOH weight ratio 13.75:35,150 mL n- octane as solvent,reaction temperature 220℃,reaction pressure 11.5 MPa and stirring rate 400 r/ min,the yield of 2,5-dihydroxyterephthalic acid was up to 76.52% after reaction for 4 h. |
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| Keywords: | 2 5-dihydroxyterephthalic acid synthesis characterization solvent method |
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