氧缺位磁铁矿直接转化SO_2为S的研究  

Studies on the direct transformation sulfur-dioxide into sulfur with the oxygen-deficient magnetite

作　　者：王力军[1] 

机构地区：[1]渝州大学化学系,重庆630033

出　　处：《环境科学与技术》1997年第3期11-13,16,共4页Environmental Science & Technology

摘　　要：本文研究了用H2在573K条件下制备的氧缺位铁矿（Fe3O4-8，δ＞0）分解SO2为单质硫的反应．对反应时间和温度等进行了试验研究，结果表明：反应时间越长，分解SO2的量越多，反应温度越高，分解SO2的活性越高速度越快．氧缺位磁铁矿分解SO2为单质硫的转化率为100％，而且反应后磁铁矿可再生重复使用。篢he reaction of decomposing sulfur-dioxide into sulfur with the oxygendeficient magnetite (Fe3O4-δ,δ>0)by H2 at 573 K was studied and its relations to reaction time and reaction temperature wene investigated, respectively. The results show that the longer the reaction time is the larger the amount of decomposing sulfur dioxide;the higher the reaction temperature has,the more active and the faster speed its decomposition of sulfur dioxide is. The transformation rate of sulfur dioxide decomposed into sulfur with the oxygen - deficient magnetite is loO percent. After reaction,magnetite (Fe,O,+,,8>o) cou1d be regenerated by H2 at the same condition and be reused.

关 键 词：氧缺位 磁铁矿 二氧化硫转化 

分 类 号：O613.51[理学—无机化学]