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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 |
Author Name | Affiliation | AN Jing | Tianjin Key Enterprise Laboratory of Green Rubber Additives | MENG Qingbao | Tianjin Key Enterprise Laboratory of Green Rubber Additives | ZHU Jun | Tianjin Key Enterprise Laboratory of Green Rubber Additives |
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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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