| 十一至十五碳二元酸二(2,2,6,6-四甲基哌啶基)酯的合成及其光稳定性研究 |
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| 引用本文： | 魏菁晶,赵文军,关建,陈阳,高林.十一至十五碳二元酸二(2,2,6,6-四甲基哌啶基)酯的合成及其光稳定性研究[J].精细石油化工,2008,25(3). |
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| 作者姓名： | 魏菁晶 赵文军 关建 陈阳 高林 |
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| 作者单位： | 中国科学院新疆理化技术研究所,新疆,乌鲁木齐,830011;中国科学院研究生院,北京,100049;中国科学院新疆理化技术研究所,新疆,乌鲁木齐,830011 |
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| 摘 要： | 以甲醇钠为催化剂,无水二甲苯为溶剂,采用4A分子筛脱醇脱水,以长链二元酸二甲酯(LDDE)和2, 2,6,6-四甲基哌啶醇(TMPO)为原料制备了十一至十五碳系列二元酸二(2,2,6,6-四甲基哌啶基)酯。通过正交实验确定的最佳工艺条件为:反应时间8 h,n(TMPO):n(LDDE)=4:1,催化剂用量为LDDE质量的0.8%。该产物可明显改善加氢基础油的光稳定性能。
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| 关 键 词： | 酯交换 甲醇钠 十一至十五碳二元酸二甲酯 2 6 6-四甲基哌啶醇 十一至十五碳二元酸二(2 2 6-四甲基哌啶基)酯 光稳定性 |
SYNTHESIS AND LIGHT STABILITY OF C11-C15 DICARBOXYLIC ACID BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL) ESTER |
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| Wei Jingjing,Zhao Wenjun,Guan Jian,Chen Yang,Gao Lin.SYNTHESIS AND LIGHT STABILITY OF C11-C15 DICARBOXYLIC ACID BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL) ESTER[J].Speciality Petrochemicals,2008,25(3). |
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| Authors: | Wei Jingjing Zhao Wenjun Guan Jian Chen Yang Gao Lin |
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| Abstract: | Long-chain dicarboxylic acid bis(2,2,6,6-tetramethyl-4-piperidinyl) esters(LDPE) were synthesized with long-chain dicarboxylic acid dimethyl ester(LDDE) and 2,2,6,6-tetramethyl-4-piperidinol (TMPO) with sodium methoxide as catalyst,anhydrous xylene as solvent and 4A molecular sieve to dispose of water and carbinol.The optimum reaction conditions were found as follows:reaction time 8h,mole ratio of TMPO to LDDE 4.0 and sodium methoxide dosage 0.8%of the mass of long-chain dicarboxylic acid dimethyl ester.It was found that the products could effectively improve the stability of hydrotreated base oil against light. |
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| Keywords: | transesterification sodium methoxide long-chain dicarboxylic acid dimethyl ester 2 2 6 6-tetramethyl-4-piperidinol C_(11)-C_(15) dicarboxylic acid bis(2 2 6 6-tetramethyl-4-piperidinyl) ester light stability |
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