(1. 中南大學 冶金與環(huán)境學院，長沙 410083； 2. 中國有色金屬工業(yè)協(xié)會 中國有色金屬清潔冶金工程研究中心，長沙 410083)
摘 要: 利用臭氧氣體作為協(xié)同氧化劑，在鹽酸體系中配合氧氣浸出含銻復雜硫化礦，研究其在不同溫度條件下的浸出行為，結合動力學并從間接氧化的角度研究浸出反應機理。結果表明：采用臭氧協(xié)同氧化浸出含銻復雜硫化礦，在一定條件下可以有效地浸出其中的銻，銻的浸出率隨著溫度的升高而升高。相比于氧氣氧化浸出，臭氧可以有效地促進浸出反應的進行。動力學分析表明，臭氧可以直接促進化學反應的進行，使得氧化浸出反應過程呈現(xiàn)出不同的動力學控制步驟和參數(shù)。
關鍵字: 臭氧；含銻復雜硫化礦；協(xié)同氧化；浸銻
（1. School of Metallurgy and Environment, Central South University, Changsha 410083, China; 2. Cleaner Metallurgical Engineering Research Center, Nonferrous Metal Industry of China, Changsha 410083, China）
Abstract:Antimony-bearing complex sulfides ore was processed by oxidation leaching in hydrochloric acid with ozone gas as synergistic oxidant. Leaching behavior at different temperatures was studied, leaching mechanism was analyzed by leaching kinetics combined with indirect oxidation. The results show that antimony in complex sulfides ore could be effective extracted by synergistic oxidation under certain conditions, and the leaching rate of antimony increases with the increase of temperature. Compared with the leaching process with oxygen gas as oxidant, leaching process is efficiently improved by synergistic ozone. Kinetic analysis shows that ozone directly influences the process and promotes chemical reactions, where the leaching process shows different control step and parameters of kinetics model.
Key words: ozone; antimony-bearing complex sulfides ore; synergistic oxidation; antimony leaching
