中国资源综合利用2024，Vol.42Issue(6)：17-21,5.DOI:10.3969/j.issn.1008-9500.2024.06.005
硫化镍精矿常压酸浸试验研究
Experimental Study on Atmospheric Pressure Acid Leaching of Sulfide Nickel Concentrate
摘要
Abstract
For the sulfide nickel concentrate obtained by flotation,the atmospheric pressure chloride-oxygen enhanced sulfuric acid leaching process is adopted for treatment,and the leaching behavior of nickel,copper,and iron is studied,and the effects of factors such as raw ore particle size,sulfuric acid dosage,leaching temperature,oxygen flow rate,chloride ion concentration,reaction time,and liquid-solid ratio are examined to determine the optimal process conditions for atmospheric pressure acid leaching of sulfide nickel concentrate.The results show that under the optimal process conditions,the proportion of particles with original ore particle size less than 20 μm is 81.05%,the amount of sulfuric acid used is 500 kg/t of ore,the leaching temperature is 95℃,the oxygen flow rate is 300 mL/(L·min),the chloride ion concentration is 30 g/L,the leaching time is 10 h,the liquid-solid ratio is 5,and the leaching rates of nickel,copper,and iron are 95.79%,93.59%,and 19.04%,respectively.关键词
硫化镍精矿/镍/铜/铁/酸浸Key words
nickel sulfide concentrate/nickel/copper/iron/acid leaching分类
矿业与冶金引用本文复制引用
赵峰,刘三平,王海北,谢铿,张登高,汪胜东..硫化镍精矿常压酸浸试验研究[J].中国资源综合利用,2024,42(6):17-21,5.基金项目
国家自然科学基金资助项目"硫化矿加压湿法冶金的机理研究"(51434001). （51434001）
