کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
584662 | 877895 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal characteristics of lysine tri-isocyanate and its mixture with water
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal characteristics of lysine tri-isocyanate and its mixture with water Thermal characteristics of lysine tri-isocyanate and its mixture with water](/preview/png/584662.png)
چکیده انگلیسی
The thermal reactivity of lysine tri-isocyanate (LTI, 2-isocyanatoethyl-2,6-diisocyanato caproylate) and its mixture with 1% water was investigated after the occurrence of a runaway reaction at a plant. By using a sensitive thermal calorimeter, C80, and an adiabatic calorimeter, ARC, an onset reaction of LTI was observed at 70-100 °C and it became vigorous at 175-200 °C. The reaction is considered as co-polymerization at this stage, which causes a second decomposition reaction at 200 °C if the heat generation is accumulated in the vessel. On the other hand, the presence of water can catalyze LTI at much lower onset temperature and lead to a moderate reaction at 50 °C since carbamine is produced and in turn it induces decarbonization of the LTI molecule with significant release of CO2 gas which was detected by a gas chromatography and an FT-IR gas analyzer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 142, Issue 3, 11 April 2007, Pages 647-652
Journal: Journal of Hazardous Materials - Volume 142, Issue 3, 11 April 2007, Pages 647-652
نویسندگان
Xin-Rui Li, Hiroshi Koseki, Yusaku Iwata,