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| N，N′-二邻甲苯基硫脲的合成工艺研究 |
| Study on Synthesis Process of Di-o-tolylthiourea |
| Received:March 11, 2022 Revised:March 11, 2022 |
| DOI：10.12137/j.issn.2095-5448.2023.02.0090 |
| 中文关键词: N，N′-二邻甲苯基硫脲；邻甲苯胺；二硫化碳；催化剂；合成工艺 |
| 英文关键词: di-o-tolylthiourea；o-toluidine；carbon disulfide；catalyst；synthetic process |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | ZHAO Kaikai | Hebi Lianhao New Materials Co. Ltd | zhaokai2006@163.com | | DU Xuejun* | Hebi Lianhao New Materials Co. Ltd | 2963514299@qq.com | | LI Zhenxing | Hebi Lianhao New Materials Co. Ltd | | | WANG Yanli | Hebi Lianhao New Materials Co. Ltd | |
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| 中文摘要: |
| 研究N，N′-二邻甲苯基硫脲的合成工艺。以邻甲苯胺、二硫化碳为原料，水为溶剂，加入催化剂A，在一定的温度下反应生成N，N′-二邻甲苯基硫脲，确定的最佳合成工艺条件为：邻甲苯胺/二硫化碳物质的量比为1/1.5，催化剂A/邻甲苯胺质量比为3.33/1 000；反应温度为第1阶段 48～50 ℃，第2阶段 60～65 ℃，第3阶段 95～100 ℃；反应时间为第1阶段 3 h，第2阶段 8 h，第3阶段 6 h。 |
| 英文摘要: |
| The synthetic process of di-o-tolylthiourea was studied.Di-o-tolylthiourea was synthesized at a certain temperature with o-toluidine and carbon disulfide as raw materials，water as solvent and catalyst A.The optimum synthesis conditions were as follows：the molar ration of o-toluidine/carbon disulfide was 1/1.5，the mass ratio of catalyst A/o-toluidine was 3.33/1 000；the reaction temperature was 48～50 ℃ in the first stage，60～65 ℃ in the second stage，95～100 ℃ in the third stage；the reaction time was 3 hours in the first stage，8 hours in the second stage，6 hours in the third stage. |
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