| 4B酸合成工艺的研究 |
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| 引用本文： | 崔玉民,朱良俊.4B酸合成工艺的研究[J].化学反应工程与工艺,2001,17(2):189-191. |
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| 作者姓名： | 崔玉民 朱良俊 |
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| 作者单位： | 阜阳师范学院化学系, |
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| 基金项目： | 安徽省教委自然科学基金资助项目 !(99j10 16 2 ) |
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| 摘 要： | 以对硝基甲苯为原料经还原，磺化两步反应合成4B酸，通过正交试验确定最佳工艺条件为磺化温度175℃，硫酸与对甲苯胺的摩尔比为1．1：1，活性炭与对硝基甲苯的质量比为1：20，在优化条件下，碘化收率达到93．7％，4B酸的总收率达到83．3％，产品纯度为98％，产品经元素分析、高效液相色谱分析证实了它的结构和纯度。，
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| 关 键 词： | 4B酸 磺化 正交试验 合成工艺 邻氨基对甲苯磺酸 对硝基甲苯 |
| 文章编号： | 1001－7631（2001）02－0189－03 |
| 修稿时间： | 2000年4月25日 |
A STUDY ON SYNTHESIS TECHNOLOGY OF 4B ACID |
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| Cui Yu-min,ZHU Liang-jun.A STUDY ON SYNTHESIS TECHNOLOGY OF 4B ACID[J].Chemical Reaction Engineering and Technology,2001,17(2):189-191. |
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| Authors: | Cui Yu-min ZHU Liang-jun |
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| Abstract: | 4B acid was synthesized from p-nitrotoluene by reduction and sulfonation in this work. The optimum reaction conditions, which sulfofication temperature is 175℃, mole ratio of sulfuric acid and p-toluidine is 1.1∶1,mass ratio of activity carbon and p-nitrotoluene is 1∶20, and producing water of reaction process is separated, have been found by the orthogonal test .Under the optimum conditions, the yield of sulfofication can reach 93.7%.The total yield and the purity of 4B acid can reach 83.3% and 98.0%,respectively. The structure and purity were confirmed by element analysis and color spectrum. |
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| Keywords: | B acid sulfonation orthogonal test synthesis |
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