| 溶剂法合成1-氨基-4-萘磺酸钠方法的改进 |
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| 引用本文： | 张天永,何萌,李彬,王晓,杜晶,段永洁,尹观. 溶剂法合成1-氨基-4-萘磺酸钠方法的改进[J]. 精细化工, 2011, 28(8): 826-828,832 |
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| 作者姓名： | 张天永 何萌 李彬 王晓 杜晶 段永洁 尹观 |
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| 作者单位： | 天津大学化工学院精细化工系,天津,300072 |
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| 摘 要： | 用以邻二氯苯为溶剂的液相磺化法代替固相烘焙磺化法,在表面活性剂Tween-60和邻二氯苯存在的条件下,1-萘胺和硫酸经铵盐化、转位磺化、加碱(Na2CO3)成盐合成了1-氨基-4-萘磺酸钠。考察了不同有机溶剂、磺化反应时间、表面活性剂、母液套用对反应的影响。得到的最佳工艺条件为:1-萘胺35.8 g、w(H2SO4)=80%的硫酸33.6 g、邻二氯苯150 mL、Tween-60 1.5 g,磺化反应时间6 h,在该条件下1-氨基-4-萘磺酸钠收率可达90.6%。
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| 关 键 词： | 1-萘胺 磺化 表面活性剂 1-氨基-4-萘磺酸钠 精细化工中间体 |
| 收稿时间： | 2011-03-30 |
| 修稿时间： | 2011-06-10 |
Technical Improvement on Synthesis of Sodium 1-Amino-4-Naphthalene Sulfonate by Solvent Method |
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| ZHANG Tian-yong,HE Meng,LI Bin,WANG Xiao,DU Jing,DUAN Yong-jie and YIN Guan. Technical Improvement on Synthesis of Sodium 1-Amino-4-Naphthalene Sulfonate by Solvent Method[J]. Fine Chemicals, 2011, 28(8): 826-828,832 |
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| Authors: | ZHANG Tian-yong HE Meng LI Bin WANG Xiao DU Jing DUAN Yong-jie YIN Guan |
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| Affiliation: | School of Chemical Engineering and Technology, Tianjin University,School of Chemical Engineering and Technology, Tianjin University,School of Chemical Engineering and Technology, Tianjin University,School of Chemical Engineering and Technology, Tianjin University,School of Chemical Engineering and Technology, Tianjin University,School of Chemical Engineering and Technology, Tianjin University |
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| Abstract: | Method of liquid sulfonation in o-dichlorobenzene as a solvent was used in place of solid baking sulfonation. Sodium 1-amino-4-naphthalene sulfonate was prepared through ammonium salifying by 1-naphthylamine and sulfuric acid, transposition sulfonation and salifying(Na2CO3) in the presence of Tween 60 as a surfactant and o-dichlorobenzene. Effects of the solvents, the sulfonation reaction time, surfactants, recycle times of mother liquor were investigated. The optimum conditions were found as follows: 1-naphthylamine 35.8g, 80% sulfuric acid 33.6g, o-dichlorobenzene 150mL, Tween 60 1.5g, sulfonation time 6h, yield of sodium 1-amino-4-naphthalene sulfonate 90.6%. |
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| Keywords: | 1-naphthylamine sulfonation surfactant sodium 1-amino-4-naphthalene sulfonate |
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