非洲某含钴萃余液中和除杂试验研究  

Removal of Impurities from Cobalt⁃Containing Raffinate in Africa

作　　者：谢洪珍 XIE Hongzhen(State Key Laboratory of Comprehensive Utilization of Low Grade Refractory Gold Ores,Shanghang 364200,Fujian,China;Xiamen Zijin Mining and Metallurgy Technology Co Ltd,Xiamen 361101,Fujian,China)

机构地区：[1]低品位难处理黄金资源综合利用国家重点实验室,福建上杭364200 [2]厦门紫金矿冶技术有限公司,福建厦门361101

出　　处：《矿冶工程》2023年第3期133-136,共4页Mining and Metallurgical Engineering

基　　金：国家重点研发计划(2022YFC2904604)。

摘　　要：针对非洲某含钴萃余液,采用石灰石、生石灰、石灰石-生石灰和浮选尾矿-生石灰等几种药剂进行中和除杂,并进行了初步经济评价。结果表明,采用浮选尾矿-生石灰组合进行中和除杂,既可节省石灰石用量,还可回收浮选尾矿中的部分铜钴,是较好的除杂药剂组合;采用该工艺,浮选尾矿铜浸出率为81.69%、钴浸出率为41.10%;加入生石灰后铜和钴沉淀率分别为95.43%和13.64%,铁去除率为99.86%。As for a cobalt⁃containing raffinate in Africa,several neutralizing agents,including limestone,lime,limestone⁃lime,as well as a combination of flotation tailings and lime,were separately used for impurity removal in the study,and a preliminary economic evaluation was also conducted.It is found that a combination of flotation tailings and lime is a good choice for impurity removal by neutralization,which can not only save the usage of limestone,but also recover part of the copper and cobalt in flotation tailings.Using this process,the leaching rates of copper and cobalt from flotation tailings can reach 81.69%and 41.10%,respectively.After an addition of lime,the precipitation rates of copper and cobalt can reach 95.43%and 13.64%respectively,and the iron removal rate is up to 99.86%.

关 键 词：含钴溶液 石灰石 生石灰 浮选尾矿 除杂 萃余液 铜 铁 钴 

分 类 号：TF111[冶金工程—冶金物理化学]