Peng Hao, Wang Feng, Li Gang, Guo Jing, Li Bing
Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing 408100, P. R. China.
ACS Omega. 2019 Jan 10;4(1):904-910. doi: 10.1021/acsomega.8b02708. eCollection 2019 Jan 31.
Response surface methodology was applied to optimize the processing parameters (dosage of NaOH, dosage of HO, reaction temperature, liquid-to-solid ratio, stirring rate, and reaction time) that affected the leaching process of vanadium and chromium. The results indicated that the leaching process of vanadium was significantly affected by the dosage of NaOH and dosage of HO used in the experiments, whereas the processing parameters affected the leaching efficiency of chromium in the following order: dosage of HO (F) > reaction temperature (C) > dosage of NaOH (A) > reaction time (B) > stirring rate (D) > liquid-to-solid ratio (E). Almost 98.60% of vanadium and 79.82% of chromium were leached out during the leaching process.
采用响应面法优化影响钒和铬浸出过程的工艺参数（氢氧化钠用量、过氧化氢用量、反应温度、液固比、搅拌速率和反应时间）。结果表明，实验中所用氢氧化钠用量和过氧化氢用量对钒的浸出过程有显著影响，而工艺参数对铬浸出效率的影响顺序为：过氧化氢用量（F）＞反应温度（C）＞氢氧化钠用量（A）＞反应时间（B）＞搅拌速率（D）＞液固比（E）。浸出过程中钒的浸出率近98.60%，铬的浸出率为79.82%。
