(1. 福州大學 紫金礦業(yè)學院，福州 350116； 2. 紫金礦業(yè)集團股份有限公司，上杭 364200； 3. 東北大學 資源與土木工程學院，沈陽 110819)
摘 要: 通過單礦物浮選試驗、浮選溶液化學計算和紅外光譜分析的方法，考察丁銨黑藥浮選體系中Fe3+對藍輝銅礦可浮性的影響。結果表明：Fe3+可強烈抑制藍輝銅礦的浮選，且氫氧化鐵沉淀是其抑制藍輝銅礦浮選的有效組分。適量的檸檬酸鈉能使藍輝銅礦表面的氫氧化鐵沉淀解吸，有利于丁銨黑藥在藍輝銅礦表面的吸附，從而活化藍輝銅礦的浮選。
關鍵字: 藍輝銅礦；Fe3+；檸檬酸鈉；浮選
（1. College of Zijin Mining, Fuzhou University, Fuzhou 350116, China; 2. Zijin Mining Group Co., Ltd., Shanghang 364200, China; 3. College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China）
Abstract:In the ammonium dibutyl dithiophosphate flotation system, the influence of Fe3+ on the flotation of digenite was investigated through single mineral flotation experiments, the solution chemistry calculations and infrared spectrum analysis. The results indicate that Fe3+ has deterioration effect on the floatability of digenite, and the formation of hydroxide precipitation is the effective inhibition component. However, the sodium citrate can make the iron hydroxide desorpt from the surface of digenite, which is beneficial to the adsorption of the ammonium dibutyl dithiophosphate on its surface, thus, activating the flotation of digenite.
Key words: digenite; Fe3+; sodium citrate; flotation
