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本研究是为探讨氧化镍矿在还原焙烧氨浸过程中的溶解机理而进行的。采用三电极恒电位法和数学模拟极化曲线,分别测定了铁在氨-碳酸铵溶液中阳极溶解的电流密度-电位曲线,研究了钴、钴铁合金在氨-碳酸铵溶液中的阳极溶解过程,以及在25～50℃范围内对镍、镍铁合金在氨-碳酸铵溶
This study was conducted to investigate the dissolution mechanism of nickel oxide ore during ammonia leaching by reduction roasting. The current density - potential curves of anodic dissolution of iron in ammonia - ammonium carbonate solution were measured by three - electrode potentiostatic method and mathematical simulation of polarization curves. The anodic dissolution of cobalt and cobalt - iron alloy in ammonia - ammonium carbonate solution , And in the range of 25 ~ 50 ℃ for nickel, nickel-iron alloy dissolved in ammonia - ammonium carbonate