Fe salts as catalyst for the wet oxidation of o-chlorophenol

Abstract： Catalytic wet air oxidation (CWAO) of o-chlorophenol in wastewater was studied in a stainless steel autoclave using four different Fe catalysts in the temperature range of 100-200 ℃. Experimental results showed that high rate of o-chlorophenol and CODcr (Chemical Oxygen Demand, mg/L) removal by CWAO was obtained at relatively low temperature and pressure. The catalysts Fe2(SO4)3, FeSO4, Fe2O3 and FeCl3 all exhibited high catalytic activity. More than 93.7% of the initial CODCr and nearly100% of o-chlorophenol were removed at 150 ℃ after 150 min with FeSO4 as catalyst. The CWAO of o-chlorophenol was found to be pseudo-first order reaction with respect to o-chlorophenol, with activation energy of 75.56 k J/mol in the temperature range of100-175 ℃. 作 者： XU Xin-hua    HE Ping    JIN Jian    HAO Zhi-wei   作者單位： Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China  期 刊： 浙江大學(xué)學(xué)報(bào)B（英文版）  SCI   Journal： JOURNAL OF ZHEJIANG UNIVERSITY SCIENCE B  年，卷(期)： 2005, 6(6)  分類號： X703 X131  Keywords： Fe    o-chlorophenol    Catalytic wet air oxidation    Kinetic   

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