【正文】 e earth mineral processing process. Oxidation of various types of poor ore beneficiation tests of different sizes and achieved good economic and technical indicators show the applicability of the process. And by taking control of grinding grain, improving the flotation process, using highly efficient collector agent measures to make the dressing Plant fluorine content of iron ore from % to %, for CCS to make the pletion of the objectives of environmental protection outstanding contributions. But the Bayan Obo iron ore as raw material than outside, or a large rare earth, niobium resource. Beneficiation of iron ore in the production, while also achieving the prehensive utilization of rare earth resources, can produce many varieties of rare earth concentrate product. Niobium mineral research is vigorously promoting. Others such as fluorite, apatite, barite, pyrite and so has the potential utilization possibilities still need to continue to explore. Keywords ： Oxide Ore Iron Rare Fluorine Flowsheet 內蒙古科 技大學畢業(yè)論文 III 摘要 ..................................................................................................................................I Abstract ........................................................................................................................... II 緒論 ............................................................................................................................. 1 第一章 總論 ............................................................................................................. 2 包鋼選礦廠鐵，稀土，氟的利用現(xiàn)狀及研究背景 ...................................... 2 包鋼選礦廠鐵資源的利用現(xiàn)狀 ............................................................ 2 包鋼選礦廠稀土的利用現(xiàn)狀及研究背景 .............................................. 2 包鋼選礦廠氟的利用現(xiàn)狀及研究背景 ................................................... 3 鐵 稀土國內外現(xiàn)狀 .................................................................................. 5 鐵資源國內外 現(xiàn)狀 ............................................................................... 5 稀土國內外現(xiàn)狀 .................................................................................... 7 研究內容及技術思路 ................................................................................... 8 鐵礦選礦研究內容 及技術思路 ................................................................ 8 稀土資源的研究內容及技術思路 ........................................................ 9 氟的研究內容及技術思路 ................................................................. 12 第二章 工藝礦物學研究 ........................................................................................ 13 總論 ............................................................................................................ 13 白云鄂博礦石特性 ....................................................................................... 13 白云鄂博氧化礦系列流程分析 ................................................................... 14 氧化礦系列流程取樣位置 ................................................................... 14 氧化礦系列流程產品的化學組成 ........................................................ 14 氧化礦系列流程產品的礦物組成 ........................................................... 15 礦物在氧化礦系列流程中的分布 ........................................................ 16 主要目的元素的賦存狀態(tài)及分布 .................................................................. 16 鐵的賦存狀態(tài)及分布 ........................................................................ 16 稀土元素的賦存狀態(tài)及分布 ............................................................... 18 氟的賦存狀態(tài)及分布 ............................................................................ 19 第三章 選礦工藝研究及試驗分析 ........................................................................... 20 適當細磨是白云鄂博礦石分選的主要前提 ...................................................... 20 適宜磨礦粒度的選擇 .......................................................................... 20 磨礦產品的粒度組成及可選擇分析 ..................................................... 21 包鋼選礦廠貧氧化礦鐵，稀土選礦試驗研究 .................................................. 22 總 論 .................................................................................................. 22 試驗礦樣 ......................................................................................... 22 選礦試驗與結果 ................................................................................. 24 包鋼選礦廠降 低氟含量的選礦試驗研究及技術攻關 .................................. 29 總論 .................................................................................................. 29 含氟礦物的性質 ............................................................................. 29 氟在選礦流程中的分布 ................................................................... 30 降低鐵精礦中氟含量的生產措施 ...................................................... 32 結語 ............................................................................................................ 34 參考文獻 ： .............................................................................................................. 35 附 A 英語論文 ........................................................................................................ 36 內蒙古科 技大學畢業(yè)論文 IV 附 B 中文翻譯 ........................................................................................................... 49 致謝 ........................................................................................................................... 57 1 緒論 選礦是以礦石為原料經過加工處理而獲得精礦的生產過程，起作用一般有以下幾個方面。內蒙古科 技大學畢業(yè)論文 I 包鋼選礦廠氧化礦選別流程中，鐵、稀土、氟的選礦工藝特征研究 摘要 根據白云鄂博主東礦中貧氧化礦礦石特性和主要礦物的物理、化學性質，經過大量的試驗研究，制定了弱磁 強磁 浮選綜合回收鐵、稀土的選礦工藝流程。大部分有用礦物含量少的礦石往往不能直接應用，而需把其中無用的脈石礦物排出，將有用礦物富集成精礦，通過提供精料