固体甲醛的聚合度对α-氰基丙烯酸乙酯合成工艺的影响  

Influence of the degree of polymerization of solid formaldehyde on the synthesis process of ethyl 2-cyanoacrylate

作　　者：王虹 张朝纯 施娜娜 李定邦 彭艳丽 韩晓明 张东卫 季小付 李娟 WANG Hong;ZHANG Chao-chun;SHI Na-na;LI Ding-bang;PENG Yan-li;HAN Xiao-ming;ZHANG Dong-wei;JI Xiao-fu;LI Juan(Hebei Chengxin Co.,Ltd.,Shijiazhuang 051130,China;Hebei Chengxin Skytop Pharmchem Co.,Ltd.,Shijiazhuang 051130,China;Hebei Innovation Center of Cyanide Derivatives Technology,Shijiazhuang 051130,China;Hebei Province Cyanide and Derivatives Research&Application Industrial Technology Research Institute,Shijiazhuang 051130,China)

机构地区：[1]河北诚信集团有限公司,河北石家庄051130 [2]河北诚信九天医药化工有限公司,河北石家庄051130 [3]河北省氰衍生物技术创新中心,河北石家庄051130 [4]河北省氰及衍生物研究与应用产业技术研究院,河北石家庄051130

出　　处：《精细与专用化学品》2024年第5期45-48,共4页Fine and Specialty Chemicals

摘　　要：研究固体甲醛不同聚合度下的解聚时间,以及不同聚合度的固体甲醛对合成α-氰基丙烯酸乙酯收率的影响。通过研究发现,聚合度越大,在同一条件下的解聚时间越长,合成α-氰基丙烯酸乙酯的收率呈现降低的趋势。针对聚合度较高的固体甲醛,研究了在α-氰基丙烯酸乙酯生产体系中提高其反应活性的方法,影响其活性的关键因素为水和缩合(解聚)温度。The depolymerization time of solid formaldehyde at different degrees of polymerization,as well as the effect of solid formaldehyde with different degrees of polymerization on the yield of synthesized ethyl 2-cyanoacrylate were studied.It was found that the higher the degree of polymerization,the longer the depolymerization time under the same conditions,leading to the synthesis of the yield of ethyl 2-cyanoacrylate showed a decreasing trend.Methods for improving the reactivity of solid formaldehyde with high polymerization degree in the ethyl 2-cyanoacrylate production system were studied,and the key factors affecting its activity were found to be water and condensation(depolymerization)temperature.

关 键 词：Α-氰基丙烯酸乙酯 固体甲醛 聚合度 解聚 

分 类 号：TQ225.5[化学工程—有机化工]