CAJ | 학술논문

研究活性炭对含钴矿物摇瓶生物浸出的影响。结果表明：在浸出过程中，由于原电池效应，添加活性炭加速硫铜钴矿的氧化溶解，钴的浸出率也随之提高。添加1.0 g/L活性炭，在矿浆浓度为10%、浸出温度为45℃、转速为180 r/min的条件下，钴浸出率提高22.06%，铜浸出率提高15.43%。粒状活性炭与粉末状活性炭具有相同的催化效果，硫铜钴矿的生物浸出不受活性炭形状影响，生物浸出过程中可以用活性炭颗粒代替活性炭粉末。pH值对活性炭对钴离子的吸附有控制作用，随着pH值降低，活性炭对钴离子的吸附量减小，浸出条件下金属离子的损失可忽略。
연구활성탄대함고광물요병생물침출적영향。결과표명：재침출과정중，유우원전지효응，첨가활성탄가속류동고광적양화용해，고적침출솔야수지제고。첨가1.0 g/L활성탄，재광장농도위10%、침출온도위45℃、전속위180 r/min적조건하，고침출솔제고22.06%，동침출솔제고15.43%。립상활성탄여분말상활성탄구유상동적최화효과，류동고광적생물침출불수활성탄형상영향，생물침출과정중가이용활성탄과립대체활성탄분말。pH치대활성탄대고리자적흡부유공제작용，수착pH치강저，활성탄대고리자적흡부량감소，침출조건하금속리자적손실가홀략。
The catalytic effect of activated carbon on cobalt mineral bioleaching was studied. The results show that, with the presence of activated carbon, the carrollite dissolution rate accelerates and the cobalt recovery rate increases, which attributes to the galvanic interaction between the activated carbon and carrollite. When 1.0 g/L activated carbon and 20 g cobalt ore are added in the Erlenmeyer flasks that are incubated in a rotary shaker at 180 r/min and constant temperature at 45℃, the leaching rate of cobalt increases by approximately 22%, and the copper leaching rate improves by 15.43%. The catalytic effect of activated carbon particles is the same with that of powder on carrollite bioleaching. Therefore, it is feasible that, using activated carbon grain can improve the cobalt recovery, instead of powder. The adsorption of Co2+ by activated carbon is affected by pulp pH. With dropping pH, the adsorption capacity of Co2+ by activated carbon reduces.