| 混合溶剂法合成4-氨基萘-1-磺酸钠的研究 |
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| 引用本文： | 张天永,何萌,李彬,王晓,杜晶,段永洁,尹观.混合溶剂法合成4-氨基萘-1-磺酸钠的研究[J].精细石油化工,2012,29(2):25-28. |
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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： | 研究了邻二氯苯-均四甲苯混合溶剂中1-萘胺的液相磺化。在邻二氯苯-均四甲苯混合溶剂的存在下,1-萘胺和硫酸经过铵盐化、高温转位磺化、加Na2CO3中和成盐可以制备4-氨基萘-1-磺酸钠。考察了不同磺化反应时间、均四甲苯添加量、母液套用对反应的影响。较佳工艺条件为:1-萘胺35.8g,质量分数80%硫酸33.6g,邻二氯苯120mL,均四甲苯60g,磺化时间5h,4-氨基萘-1-磺酸钠收率可达93.1%。
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| 关 键 词： | 1-萘胺 磺化 4-氨基萘-1-磺酸钠 混合溶剂 |
STUDY ON SYNTHESIS OF SODIUM 4-AMINONAPHTHALENE- 1- SULFONATE IN MIXED SOLVENTS |
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| Zhang Tianyong
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He Meng
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Li Bin
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Wang Xiao
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Du Jing
,
Duan Yongjie
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Yin Guan.STUDY ON SYNTHESIS OF SODIUM 4-AMINONAPHTHALENE- 1- SULFONATE IN MIXED SOLVENTS[J].Speciality Petrochemicals,2012,29(2):25-28. |
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| Authors: | Zhang Tianyong He Meng Li Bin Wang Xiao Du Jing Duan Yongjie Yin Guan |
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| Affiliation: | (Department of Fine Chemicals,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Study on the liquid sulfonation of 1-naphthylamine in mixed solvent of o-dichlorobenzene and durene was conducted.Sodium 4-aminonaphthalene-1-sulfonate was prepared through ammonium salifying by 1-naphthylamine and sulfuric acid,transposition sulfonation and neutralization with Na2CO3 in the presence of o-dichlorobenzene and durene.Effects of the sulfonation reaction time,the mass of durene,recycle times of mother liquor were investigated.The optimum conditions were found as follows: 35.8 g 1-naphthylamine,33.6 g 80% sulfuric acid,120 mL o-dichlorobenzene,60 g durene and sulfonation time 5 h,with the yield of sodium 4-amino naphthalene-1-sulfonate of 93.1%. |
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| Keywords: | 1-naphthylamine sulfonation sodium 4-aminonaphthalene-1-sulfonate mixed solvent |
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