沉积型铝土矿原位溶浸技术可行性分析及开采设想  

FEASIBILITY ANALYSIS AND MINING SUGGESTION OF IN-SITU LEACHING TECHNOLOGY FOR SEDIMENTARY BAUXITE

作　　者：张毅 李志忠[1,2] 罗腾跃[1,4] 汤晓君 穆华一 郭科 孙萍萍[1,2] 王鑫 ZHANG Yi;LI Zhi-zhong;LUO Teng-yue;TANG Xiao-jun;MU Hua-yi;GUO Ke;SUN Ping-ping;WANG Xin(Green Development Institute of Western China,CGS,Xi’an 710054,China;Xi’an Center of China Geological Survey,Xi’an 710054,China;College of Earth Sciences,Jilin University,Changchun 130061,China;Institute of Yanchang Petroleum(Group)Co.,Ltd.,Xi’an 710065,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Institute of Digital Hu Line,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]中国地质调查局西部绿色发展研究院,陕西西安710054 [2]中国地质调查局西安地质调查中心,陕西西安710054 [3]吉林大学地球科学学院,吉林长春1300613 [4]陕西延长石油(集团)有限责任公司研究院,陕西西安710065 [5]西安交通大学电气工程学院,陕西西安710049 [6]成都理工大学数字胡焕庸线研究院,四川成都610059

出　　处：《地质与资源》2022年第6期821-832,共12页Geology and Resources

基　　金：国家重点研发计划课题“SO2和NOX多组分气体的精确检测仪器应用技术开发”(2016YFF0102805);中国地质调查局项目“黄河中上游生态地质调查”(DD20221774).

摘　　要：沉积型铝土矿是我国主要的铝土矿类型,经过几十年的开发,储采比逐渐下降,深部难动用资源的绿色开发迫在眉睫.通过开展静态溶浸实验和电极加热仿真模拟,结合原位溶浸技术在铀矿和稀土矿开采中的成功经验,总结出该技术在固体矿产开采中应用的适用条件包括:矿物可溶性、矿体分布稳定性、顶底板条件、矿体渗透性.我国北方铝土矿资源与以上条件切合程度高,适合采用原位溶浸技术进行开采.本次研究还提出了沉积型铝土矿原位溶浸开采的工艺方案,为下一步开展先导试验提供了设计思路.Sedimentary bauxite is the main type of the deposits in China.The reserve-production ratio has gradually declined with decades of development,thus green exploitation of difficult-to-use resources in the deep is a matter of great urgency.Through static leaching test and electrode heating simulation,combined with the successful experience of in-situ leaching technology in uranium and rare earth mining,the application conditions of the technology in solid mineral mining are summarized as follows:1)soluble minerals,2)stable orebody distribution,3)roof and floor conditions and 4)orebody permeability.The bauxite resources in North China fit in well with the above conditions and are suitable for in-situ leaching technology.The technological scheme for in-situ leaching mining of sedimentary bauxite is also proposed,which provides idea for pilot test design in the next step.

关 键 词：沉积型铝土矿 原位溶浸 静态溶浸试验 技术可行性 深部开采 

分 类 号：P618.45[天文地球—矿床学]