褐铁矿型和蛇纹石型红土镍矿氯化浸出-选择性水解耦合提镍钴工艺研究  

A Coupled Process of Chloridizing Leaching and Selective Hydrolysis for Extracting Nickel and Cobalt from Limonite⁃Type and Serpentine⁃Type Nickel Laterite Ores

作　　者：王洋洋 王硕 崔伟勇 李永利[2] 郭强 康跻耀[1,2] WANG Yangyang;WANG Shuo;CUI Weiyong;LI Yongli;GUO Qiang;KANG Jiyao(Hebei Zhongke Tongchuang Technology Development Co Ltd,Hengshui 053000,Hebei,China;Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]河北中科同创科技发展有限公司,河北衡水053000 [2]中国科学院过程工程研究所绿色过程与工程重点实验室,北京100190

出　　处：《矿冶工程》2023年第3期115-118,123,共5页Mining and Metallurgical Engineering

基　　金：国家重点研发计划(2020YFC1909601,2020YFC1909603);河北省自然科学基金(E2020111205);河南省重点研发计划(212102310066);中国博士后基金(2022M723179)。

摘　　要：针对褐铁矿型和蛇纹石型红土镍矿开展了以盐酸为初始浸出介质的褐铁矿型红土镍矿氯化浸出-蛇纹石型红土镍矿选择性水解耦合提取镍钴工艺研究。结果表明,酸矿质量比5∶4、液固质量比4∶1、反应温度100℃、反应时间30 min条件下,氯化浸出褐铁矿型红土镍矿时Ni、Co、Fe浸出率分别为99.6%、100%、96.9%;采用褐铁矿型红土镍矿浸出液与浓盐酸按体积比1∶4调配,在液固比1∶1、温度150℃、浸出时间90 min条件下浸出,蛇纹石型红土镍矿中Ni和Co浸出率分别达到84.9%和100%。Limonite⁃type and serpentine⁃type nickel laterite ores were taken for experiment.A coupled process for extracting nickel and cobalt was adopted,consisting of chloridizing leaching with HCl as the initial leaching medium for limonite⁃type nickel laterite ore,and selective hydrolysis for serpentine⁃type nickel laterite ore.The leaching rates of Ni,Co,and Fe from limonite⁃type laterite ore were 99.6%,100%,and 96.9%respectively,under the conditions including acid⁃to⁃ore ratio of 5∶4,liquid⁃to⁃solid ratio of 4∶1,reaction temperature of 100℃,and reaction time of 30 min.After that,the obtained lixivium of limonite⁃type nickel laterite ore,being mixed with concentrated HCl in a volume ratio of 1∶4,was used to leach serpentine⁃type nickel laterite at 150℃for 90 min with a liquid⁃to⁃solid ratio of 1∶1,resulting in the leaching rates of Ni and Co up to 84.9%and 100%.

关 键 词：红土镍矿 褐铁矿型 蛇纹石型 氯化浸出 镍 钴 

分 类 号：TF111[冶金工程—冶金物理化学]