摘要
介绍了减压蒸馏、载气蒸馏、循环萃取 共沸蒸馏等几种降低游离甲基二异氰酸酯 (TDI)含量的方法。在CASE应用领域 ,较低的游离TDI含量有利于人身安全、环境保护和工艺及制品性能的提高。
Some ways of reducing the content of the free TDI by decreasing pressure distillation.carring gas distillation.circulating extraction.azeotropic distillation are introduced.The lower conteut of the free TDI is of benefit to the personncl safety the environment protection and the improvment of the technology and product qualition.
出处
《聚氨酯工业》
2002年第3期10-13,共4页
Polyurethane Industry
关键词
TDI含量
方法
研究
低游离
减压蒸馏
载气蒸馏
循环萃取
共沸蒸馏
甲基二异氰酸酯
聚氨酯
lower free
decreasing pressure distillation carring gas distillation
circulating extraction
azeotropic distillation
toluene diisocyanate
polyurethane
