Mineralization of chlorofluorocarbons and aromatization of saturated fluorocarbons by a convenient thermal process

被引:81
作者
Burdeniuc, J [1 ]
Crabtree, RH [1 ]
机构
[1] YALE UNIV,DEPT CHEM,NEW HAVEN,CT 06520
关键词
D O I
10.1126/science.271.5247.340
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A chemical reaction has been discovered that mineralizes chlorofluorocarbons (CFCs) and enables the complete destruction of these environmentally hazardous species. The reaction products are easily handled solids, including recyclable alkali metal halides. Under milder conditions, the same reaction causes partial defluorination of cyclic perfluoroalkanes to yield perfluoroarenes, which are valuable chemical intermediates. The vaporized substrates are passed over a packed bed of heated sodium oxalate; heating at 270 degrees to 290 degrees C causes mineralization, whereas healing at 230 degrees C causes aromatization.
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页码:340 / 341
页数:2
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