摘要
贵州某铝土矿Al_(2)O_(3)品位为61.97%,SiO_(2)品位为13.06%,铝硅比为4.75,矿石特点为高铝、高硅、较低铝硅比,开发利用难度大。根据工艺矿物分析,采用“1粗1精1扫”的正浮选流程进行浮选,并选用新型辅助捕收剂BM-3与油酸钠组合使用。最终得到精矿Al_(2)O_(3)品位为72.28%,回收率为75.90%;SiO_(2)品位为4.97%,回收率为22.30%,铝硅比为14.54,较原矿铝硅比提高了9.79。
The Al_(2)O_(3) grade of a bauxite mine in Guizhou is 61.97%,the SiO_(2) grade is 13.06%,and the aluminum-silicon ratio is 4.75.The ore is characterized by high aluminum,high silicon,and low aluminum-silicon ratio,which is difficult to develop and utilize.According to the process mineral analysis,the flotation process of"one-step roughing,one-step cleaning and one-step scavenging"was adopted.Meanwhile,the new auxiliary collector BM-3 was selected to be used in combination with sodium oleate.Finally,the concentrate with Al_(2)O_(3) grade of 72.28%,recovery of 75.90%,SiO_(2) grade of 4.97%,recovery of 22.30% was obtained,and aluminum-silicon ratio was 14.54.Compared with the original ore,aluminum-silicon ratio increased by 9.79.
作者
蓝柳佳
王丽
孙伟
刘润清
曾华
Lan Liujia;Wang Li;Sun Wei;Liu Runqing;Zeng Hua(School of Minerals Processing and Bioengineering,Central South University,Changsha,Hu’nan 410083;Key Laboratory of Clean and Efficient Utilization of Calcium Mineral Resources in Hunan,Central South University,Changsha,Hu’nan 410083)
出处
《非金属矿》
CSCD
北大核心
2022年第2期59-62,共4页
Non-Metallic Mines
基金
国家自然科学基金(51974365,U1704252)。
关键词
铝土矿
铝硅比
浮选
捕收剂
bauxite
aluminum-silicon ratio
flotation
collector
