| 安静,孟庆保,朱军.促进剂DCBS两步法合成工艺的研究[J].橡胶科技,2016,14(5):9-12. |
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| 促进剂DCBS两步法合成工艺的研究 |
| Study on the Two Step Synthesis Process of Curing Accelerator DCBS |
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| DOI： |
| 中文关键词: 促进剂DCBS 两步法 成盐反应 氧化反应 合成工艺 |
| 英文关键词: accelerator DCBS two-step method salt-forming reaction oxidation reaction synthesis |
| 基金项目: |
| 中图分类号:TQ330.38＋5；TQ24 |
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| 摘要点击次数: 1818 |
| 全文下载次数: 1213 |
| 中文摘要: |
| 研究促进剂DCBS两步法（成盐反应和氧化反应）合成工艺。促进剂DCBS两步法优化合成工艺为：成盐反应中，促进剂M钠盐与二环己胺（物质的量比为1∶1）在稀硫酸存在的条件下进行反应，促进剂M钠盐密度为1.015～1.025 Mg·m-3，反应温度为50 ℃，生成促进剂M-二环己胺盐，反应收率达到98%以上；氧化反应中，促进剂M-二环己胺盐被次氯酸钠（有效氯质量分数为0.14）氧化，反应温度为40～50 ℃，生成促进剂DCBS，产品收率达90%，反应结束后70%的氧化反应母液循环套用。促进剂DCBS两步法合成工艺解决了三滴法合成工艺操作复杂、控制困难及原料消耗量高的缺点，经济效益显著。 |
| 英文摘要: |
| The two-step synthesis process of accelerator DCBS included salt-forming reaction and oxidation reaction.In the salt-forming reaction，the sodium salt of accelerator M with the density of 1.015～1.025 Mg·m-3 and dicyclohexylamine was mixed and reacted in the presence of dilute sulfuric acid at 50 ℃.The yield of accelerator M-dicyclohexylamine salt reached 98%.In the oxidation reaction，accelerator M-dicyclohexylamine salt was oxidized by sodium hypochlorite （effective chlorine content of 0.14） at 40～50 ℃ to produce accelerator DCBS with a yield rate of 90% and after the reaction 70% of the oxidative solution was recycled and reused.Compared with the three-drop synthesis process，this two-step process was easy to control and had the advantage of low consumption of raw materials. |
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