CAJ | 학술논문

以国外某红土镍矿经氯化离析法预处理后的还原矿为原料,对锈蚀法处理预还原红土镍矿工艺进行研究,系统考察酸料质量比、空气流量、锈蚀温度、锈蚀时间、搅拌速率以及固液比(固体质量与液体体积比,mg/mL)对铁、镍和钴浸出率的影响.结果表明:在酸料质量比0.10,空气流量1 L/min、锈蚀温度80℃、锈蚀时间8 h、搅拌速率300 r/min 和固液比1:10的条件下,镍和钴的浸出率分别达到90.9%和80.2%,铁的浸出率仅为9.9%,实现了铁与镍和钴的分离.
이국외모홍토얼광경록화리석법예처리후적환원광위원료,대수식법처리예환원홍토얼광공예진행연구,계통고찰산료질량비、공기류량、수식온도、수식시간、교반속솔이급고액비(고체질량여액체체적비,mg/mL)대철、얼화고침출솔적영향.결과표명:재산료질량비0.10,공기류량1 L/min、수식온도80℃、수식시간8 h、교반속솔300 r/min 화고액비1:10적조건하,얼화고적침출솔분별체도90.9%화80.2%,철적침출솔부위9.9%,실현료철여얼화고적분리.
The treatment of reductive laterite by corrosion process was studied using the laterite processed by chloridizing segregation process as starting materials. The effects of mass ratio of acid to ore, air flux, leaching temperature, leaching time, stirring speed, and solid-to-liquid ratio (ratio of solid mass to liguid volume, g/mL) on the leaching rates of Fe, Ni and Co were systematically investigated. The results show that under the optimum conditions of mass ratio of acid to ore 0.1:1, air flux 1 L/min, leaching temperature 80 ℃ and time 8 h, stirring speed 300 r/min, solid-to-liquid ratio 1:10, the leaching rates of Ni and Co are respectively 90.9% and 80.2%, and the leaching rate of Fe is only 9.9%. Consequently, Ni and Co can be effectively separated from Fe.