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Synthesis Study of CF$_3$I and $C_2$F$_{5}I$ from Halon-1301  

김재덕 (한국과학기술연구원 CFC대체연구센터)
임종성 (한국과학기술연구원 CFC대체연구센터)
이윤우 (한국과학기술연구원 CFC대체연구센터)
이윤용 (한국과학기술연구원 CFC대체연구센터)
Publication Information
Fire Science and Engineering / v.16, no.3, 2002 , pp. 32-38 More about this Journal
Abstract
The synthesis of $CF_3$I and $C_2F_5I from $CF_3Br$ was studied for the reuse of $CF_3Br$ which is abolished to save the ozone layer of the earth. Reaction experiments were carried out in experimental scale synthesis equipment with catalysts, such as CuI, Kl, $K_2$$CO_3$, KF metal salt/active carbon and alumina support at $400~600^{\circ}C$. Main products of reaction were $CF_3i$ and $C_2F_5I$ with small amounts of $C_2F_5I$, $CF_4$, $CF_2Br_2$ by-products. 7.5wt% KI and $K_2CO_3$over activated carbon catalysts show the highest yield of $CF_3$I and 7.5wt% CuI over alumina catalysts show the highest yield of $C_2F_5i$. And optimal reaction temperature was about $500^{\circ}C$.
Keywords
Halon-1301; CF$_3$I; C$_2$F$_{5}I$; Metal salt; Synthesis; Iodination;
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