| 对甲基苯胺-邻磺酸的合成 |
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| 引用本文： | 张卫江,张雪梅,郭锦棠,张军保,简春贵.对甲基苯胺-邻磺酸的合成[J].天津大学学报(英文版),2001,7(4):377-381. |
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| 作者姓名： | 张卫江 张雪梅 郭锦棠 张军保 简春贵 |
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| 作者单位： | 1. 天津大学化工学院,
2. 天津天大天久科技股份有限公司, |
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| 摘 要： | 以对甲苯胺为原料 ,通过在溶剂中磺化的方法合成出对甲苯胺 -邻磺酸 .讨论了各种反应条件对该反应的影响 .最佳工艺条件为 :以 5 0 m L二氯苯 (工业品 )为溶剂 ,2 %～ 5 %发烟硫酸为磺化剂 ,发烟硫酸与对甲苯胺的摩尔比为 1.10～ 1.12 ,硫酸的进料时间为 10 m in左右 ,成盐时间 2 h,蒸馏 8h.此条件下制得的产品优于国外同种产品 .
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| 关 键 词： | 对甲苯胺-邻磺酸 磺化 对甲苯胺 二氯苯 |
STUDY ON SYNTHESIS OF p-TOLUIDINE-o-SULFONIC ACID |
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| ZHANG Wei-jiang,ZHANG Xue-mei,GUO Jin-tang,ZHANG Jun-bao,JIAN Chun-gui.STUDY ON SYNTHESIS OF p-TOLUIDINE-o-SULFONIC ACID[J].Transactions of Tianjin University,2001,7(4):377-381. |
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| Authors: | ZHANG Wei-jiang ZHANG Xue-mei GUO Jin-tang ZHANG Jun-bao JIAN Chun-gui |
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| Institution: | ZHANG Wei jiang 1,ZHANG Xue mei 1,GUO Jin tang 1,ZHANG Jun bao 2,JIAN Chun gui 2 |
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| Abstract: | Synthesis of p-toluidine-o-sulfonic acid from p-toluidine by sulfonation in solvent was studied,and effects of various reaction conditions or factors on the reaction were discussed in detail.As a result,the following optimum process conditions are presented:50 mL dichlorobenzene,2%～5% oleum,molar ratio of sulfonating agent to p-toluidine is 1.10～1.12,oleum is dropped in the reaction system in 10 min or so,sulfate formation time is 2 h,distillation lasts 8 h.Under the above conditions,the purity and the yield of p-toluidine-o-sulfonic acid are better than that of the same product made in Japan. |
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| Keywords: | p toluidine o sulfonic acid sulfonation p toluidine dichlorobenzene |
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