Study on the Industrial Process of Rubber Anti-oxidant RD

Journal of the Korean Chemical Society

Gao qinyu¹  Shi guangxia¹  Liu Yu¹  Liu Lianxin¹ 

关键词: Rubber anti-oxidant RD;    Orthogonal design;    Ratio of keto-amine;    Ratio of catalyst acid-amine;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

This paper is on the industrial synthesis process of anti-oxidant RD ((2,2,4-trimethyl-1,2-dihydroquinoline polymer (C12H15N)n. n=2-4)).The content of dimer, trimer and tetramer of RD as the inspection targets, using the orthogonal design method - take the ratios of keto-amine, the reaction time, the reaction temperatures and the ratios of catalyst acid-amine as inspect factors - to optimized the reaction condition. The results indicate that the best ratio of keto-amine is 2:1, the time of salification and condensation is 3 hours and 7.5 hours. The range of temperature of salification and condensation is 135 oC and 120-125 oC, and that the best ratio of acid-amine is 0.2: 1 (the proportion is the concentration ratio for mole). Under the optimization conditions, the yield of RD was stabilized and content of RD more than 45%.

【 授权许可】

Unknown