| 冉克勤,吕桂中.橡胶促进剂DPG氧气氧化反应的终点测试分析及产品提纯技术[J].橡胶科技,2017,15(4):47-49. |
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| 橡胶促进剂DPG氧气氧化反应的终点测试分析及产品提纯技术 |
| End Point Analysis of Oxygen Oxidation Reaction of Rubber Accelerator DPG and Product Purification Technology |
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| DOI： |
| 中文关键词: 橡胶促进剂 氧气氧化法 提纯 硫酸根 硫代硫酸根 |
| 英文关键词: rubber accelerator oxygen oxidation purification sulfate thiosulfate |
| 基金项目: |
| 中图分类号:TQ330.38＋5 |
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| 中文摘要: |
| 对橡胶促进剂DPG（简称DPG）氧气氧化法反应的终点应进行测试分析，并总结出DPG提纯技术。结果表明：DPG氧气氧化反应中的硫酸根（SO42-）是硫代硫酸根（S2O32-）被氧气氧化的产物，氧化反应的终点以母液中的S2O32-完全被氧化成SO42-为准；产品用盐酸溶解和氨水中和的酸碱法提纯，中和反应的pH值控制为10～11。 |
| 英文摘要: |
| In this work，the end point of the oxygen oxidation test of rubber accelerator DPG was analyzed，and rubber accelerator DPG purification technology was summarized.The results showed that the sulfate（SO42-） in the oxygen oxidation of rubber accelerator DPG was the product of the oxidation of thiosulfate（S2O32-）.The end point of the oxidation reaction was based on the completion of oxidation of S2O32- to SO42-.Rubber accelerator DPG could be purified by the acid-base method in which rubber accelerator DPG was firstly dissolved in hydrochloric acid solution and then the solution was neutralized by ammonia with pH controlled in the range of 10 to 11. |
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