| 固体超强酸SO_4~(2-)/TiO_2催化合成没食子酸丙酯 |
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| 引用本文： | 李德江,付和清.固体超强酸SO_4~(2-)/TiO_2催化合成没食子酸丙酯[J].精细石油化工,2004(1):28-30. |
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| 作者姓名： | 李德江 付和清 |
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| 作者单位： | 1. 郧阳师范专科学校化学系,丹江口,442700
2. 华南理工大学化工学院化工研究所,广州,510640 |
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| 摘 要： | 以固体超强酸SO2 -4/TiO2 为催化剂 ,以没食子酸和正丙醇为原料 ,合成了没食子酸丙酯 ,并考察了醇酸摩尔比、催化剂用量、催化剂焙烧温度以及反应时间对酯收率的影响。结果表明 :在焙烧温度为 5 0 0℃时 ,制得的催化剂活性最高。最适宜的条件为 :正丙醇与没食子酸的摩尔比 15∶1,固体超强酸SO2 -4/TiO2 1.8g(对14 .1g没食子酸 ) ,115～ 12 0℃反应 2 .5h ,收率达 96 .3%。
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| 关 键 词： | 固体超强酸SO2-4/TiO2 没食子酸丙酯 合成 |
| 修稿时间： | 2003年1月22日 |
CATALYTIC SYNTHESIS OF PROPYL GALLATE BY SOLID SUPER ACID SO24-/TiO2 |
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| Li Dejiang,and Fu Heqing.CATALYTIC SYNTHESIS OF PROPYL GALLATE BY SOLID SUPER ACID SO24-/TiO2[J].Speciality Petrochemicals,2004(1):28-30. |
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| Authors: | Li Dejiang and Fu Heqing |
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| Affiliation: | Li Dejiang 1 and Fu Heqing 2 |
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| Abstract: | The propyl gallate was synthesized from gallic acid and n-propyl alcohol on solid super acid SO 2- 4/TiO 2 catalyst. The effects of molar ratio of n-propyl alcohol to gallic acid, calcining temperature of catalyst, reaction temperature and reaction time on the yield of ester are investigated. The results showed that the activity of catalyst was the highest when the catalyst was calcined at 500 ℃. The optimum reaction conditions were as follows: the molar ratio of n-propyl alcohol to gallic acid is 15∶1, solid super acid SO 2- 4/TiO 2 1.8 g/14.1 g gallic acid, reaction temperature 115120 ℃ and reaction time 2.5 h, the yield of ester reached 96.3%. |
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| Keywords: | solid super acid SO 2- 4/TiO 2 propyl gallate synthesis |
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