摘要
采用矿化-分选工艺处理Cu、Ni含量分别为2.61%和2.28%的电镀污泥,研究了硫化剂、熔剂和助熔剂对铜镍电镀污泥中重金属矿化的影响.结果表明,适宜的硫化剂、熔剂分别为SJ和石英,两者适宜用量分别为20%,助熔剂硼砂适宜用量为2%.在上述添加剂条件下,当烟煤用量为15%、烧结温度为1 150℃、烧结时间为60 min时,精矿、尾矿产率分别为32.86%和59.48%,精矿铜、镍品位分别为6.96%和6.15%,回收率分别为87.63%和88.64%,尾矿铜、镍品位分别降低至0.54%和0.44%.
The heavy metal sludge with2.61%Cu and2.28%Ni was treated by mineralization-separation technology.It was studied systematically that the effects of sulfurizing agent,rhyolite and flux on the mineralization of heavy metals in Cu-Ni electroplating sludge.The results showed that the suitable sulfurizing agent,rhyolite and flux were SJ,quartz and borax respectively,and their suitable dosage were20%,20%and2%.Based on the above additives conditions and in the case of the bituminous coal dosage15%,the sintering temperature1150℃and the sintering time60min,the yields of concentrate and tailing were32.86%and59.48%respectively,and the grades of Cu and Ni in concentrates were6.96%and6.15%,and their recoveries were87.63%and88.64%,and the Cu and Ni grade in tailing reduced to0.54%and0.44%.
作者
刘牡丹
刘勇
陈志强
吕昊子
周吉奎
马致远
LIU Mudan;LIU Yong;CHEN Zhiqiang;LYU Haozi;ZHOU Jikui;MA Zhiyuan(State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,The Key Laboratory for Mineral Resources R&D and Comprehensive Utilization of Guangdong,Guangdong Institute of Resource Comprehensive Utilization, Guangzhou 510650, China)
出处
《有色金属科学与工程》
CAS
2018年第6期60-64,共5页
Nonferrous Metals Science and Engineering
基金
广东省科学院创新能力建设专项(2017GDASCX-0109)
广东省公益研究与能力建设专项(2017A070702011,2017A070701020)
广东省协同创新与平台环境建设专项(2017B090904035)
广东省科技厅重点实验室运行专项(2017B030314046)
关键词
电镀污泥
铜
镍
矿化
添加剂
electroplating sludge
copper
nickel
mineralization
additive