(1. 江西理工大學 資源與環(huán)境工程學院，贛州341000；
2. 江西理工大學 江西省礦業(yè)工程重點實驗室，贛州 341000)
摘 要: 在氰化黃銅礦浮選試驗的基礎上，通過微量熱法和X射線光電子能譜(XPS)研究次氯酸鈉和焦亞硫酸鈉對氰化黃銅礦的活化機理。結果表明：氰化黃銅礦不經(jīng)活化難以浮選，而次氯酸鈉和焦亞硫酸鈉都對其具有明顯的活化效果。丁基黃藥在未經(jīng)活化的氰化黃銅礦表面吸附時的表觀活化能較高，而次氯酸鈉和焦亞硫酸鈉的作用可分別將丁基黃藥在氰化黃銅礦表面吸附時的表觀活化能減少76.64%和79.84%，大幅降低了捕收劑的吸附難度。次氯酸鈉和焦亞硫酸鈉的作用可大幅降低氰化黃銅礦表面的CuCN含量，并使表面S元素濃度分別升高43.83%和72.13%，顯著改善氰化黃銅礦表面的硫虧損狀態(tài)。
關鍵字: 氰化渣；黃銅礦；微量熱法；活化機理
（1. Faculty of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China;
2. Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China）
Abstract:Based on the monomineral flotation test, the activation mechanism of chloros and sodium metabisulfite on cyanide chalcopyrite surfaces was investigated by microcalorimetry and X-ray photoelectron spectroscopy (XPS).The results show that the cyanide chalcopyrite is difficult to be floated without activation, and it can be effectively activated by chloros and sodium metabisulfite. When the butyl xanthate is adsorbed on the cyanide chalcopyrite surfaces before activation, the apparent activation energy is higher. After the treatment with chloros and sodium metabisulfite, the apparent activation energy decreases by 76.64% and 79.84%, respectively, which is beneficial to the adsorption of collectors. The effect of chloros and sodium metabisulfite can significantly reduce the CuCN content on the surface of cyanide chalcopyrite and increase the S concentration by 43.83% and 72.13%, respectively, which significantly improves the sulfur loss on the surface of cyanide chalcopyrite.
Key words: cyanide tailings; chalcopyrite; microcalorimetry; activation mechanism
