光气化法合成1,5-戊二异氰酸酯实验研究  

Experimental Study on Synthesis of 1,5-Pentadiisocyanate by Phosgenation Method

作　　者：刘耀宗 马建军 李晓明 滕志君 常有才 杨英朝 LIU Yaozong;MA Jianjun;LI Xiaoming;TENG Zhijun;CHANG Youcai;YANG Yingchao(Gansu Yinguang Juyin Chemical Co.Ltd,Baiyin 730900,Gansu,China)

机构地区：[1]甘肃银光聚银化工有限公司,甘肃白银730900

出　　处：《聚氨酯工业》2022年第3期41-43,共3页Polyurethane Industry

摘　　要：以生物基1,5-戊二胺和光气等为主要原料,在溶剂邻二氯苯中,采用直接光气化法合成1,5-戊二异氰酸酯(PDI),考察了溶剂用量、冷热光气化反应温度以及反应时间等因素对收率的影响。结果表明,当溶剂邻二氯苯与1,5-戊二胺质量比10∶1、冷光气化反应温度为15℃、热光气化反应温度为150℃、反应时间为12 h时,光气化反应合成PDI的收率最高,达到99.5%。1,5-Pentadiisocyanate(PDI) was prepared from bio-based 1,5-pentadiamine(PDA) and phosgene ino-dichlorobenzene(ODCB). The effects of solvent dosage, cold phosgenation reaction temperature, hot phosgenation reaction temperature and reaction time on the yield were investigated. The results showed, when solvent ODCB/PDA mass ratio was 10 ∶1, the cold phosgenation reaction temperature was 15 ℃, the hot phosgenation reaction temperature was 150 ℃ and the reaction time was 12 h, the highest reaction yield of PDI was up to 99.5%.

关 键 词：1 5-戊二胺 光气 1 5-戊二异氰酸酯 脂肪族二异氰酸酯 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] TQ226.63