中南大学学报（自然科学版）2023，Vol.54Issue(12)：4620-4630,11.DOI:10.11817/j.issn.1672-7207.2023.12.002
某拜耳法赤泥铁铝赋存工艺矿物学特性
Process mineralogical characteristics of occurrence of iron and aluminum in a Bayer red mud
摘要
Abstract
A study on a Bayer red mud from Shandong province from the perspective of process mineralogy was conducted through chemical analysis,XRD,optical microscope and BPMA automatic analyser.The material composition and particle size composition of red mud were studied in detail,and the occurrence state of iron and aluminum in red mud was emphatically analyzed.The results show that the particle size of red mud is fine,and its mineral composition and chemical composition are complex.The main iron minerals contained in red mud are hematite and goethite,and the main aluminum minerals are boehmite and gibbsite.The main substances containing iron and aluminum are iron-aluminum oxide and particulate muddy silicate mixture(sodium-silicate slag),and the content of iron and aluminum in the two substances varies greatly.The mass fraction of iron-aluminum oxide in red mud is 18.28%.The content of each element in iron-aluminum oxide is uneven,in which the average mass fraction of aluminum is 12.78%,and the average mass fraction of iron is 45.81%.There are iron-aluminum isomorphisms existing in hematite and limonite in red mud.Due to the existence of the isomorphism of iron and aluminum in hematite and goethite,and the existence of a considerable amount of iron-aluminum oxides,as well as the complex embedding characteristics of iron minerals,aluminum minerals and sodium-silicate slag,most of iron and aluminum in red mud are difficult to separate.关键词
拜耳法赤泥/工艺矿物学/铁铝赋存/类质同象/铁铝氧化物Key words
Bayer red mud/process mineralogy/occurrence of iron and aluminum/isomorphism/iron-aluminum oxide分类
矿业与冶金引用本文复制引用
柳晓,韩跃新,何发钰,高鹏,袁帅..某拜耳法赤泥铁铝赋存工艺矿物学特性[J].中南大学学报（自然科学版）,2023,54(12):4620-4630,11.基金项目
国家重点研发计划项目(2023YFC2909000) （2023YFC2909000）
矿物加工科学与技术国家重点实验室开放基金资助项目(BGRIMM-KJSKL-2023-22) （BGRIMM-KJSKL-2023-22）
山东科技大学菁英计划(skr21-3-C-108)(Project(2023YFC2909000)supported by the National Key Research and Development Program of China （skr21-3-C-108）
Project(BGRIMM-KJSKL-2023-22)supported by the Open Foundation of State Key Laboratory of Mineral Processing （BGRIMM-KJSKL-2023-22）
Project(skr21-3-C-108)supported by the Start up Fund for Talent Introduction and Scientific Research of Shandong University of Science and Technology) （skr21-3-C-108）
