【正文】 內(nèi)蒙古科 技大學(xué)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(jù)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(xué)性質(zhì)，經(jīng)過大量的試驗(yàn)研究，制定了弱磁 強(qiáng)磁 浮選綜合回收鐵、稀土的選礦工藝流程。各種類型的中貧氧化礦的不同規(guī)模的選礦試驗(yàn)，取得了良好的經(jīng)濟(jì)技術(shù)指標(biāo)，表明該工藝流程的適用性強(qiáng)。并且通過采取控制磨礦粒度、改進(jìn)浮選工藝、采用高效捕收劑等措施，使包鋼選礦廠鐵精礦氟含量由 %降低到 %，效果顯著。 但是白云鄂博礦石除作為鋼鐵原料外，還是一個(gè)大型的稀土，鈮資源。選礦在生產(chǎn)鐵精礦的同 時(shí)，還實(shí)現(xiàn)了稀土資源的綜合利用，可生產(chǎn)多品種的稀土精礦產(chǎn)品。鈮的選礦研究正在大力推進(jìn)。其他如螢石，磷灰石，重晶石，黃鐵礦等都具有潛在的綜合利用可能性，尚需不斷進(jìn)行探索。 關(guān)鍵詞 ： 氧化礦 鐵 稀土 氟 選礦工藝流程 內(nèi)蒙古科 技大學(xué)畢業(yè)論文 II Abstract According to the main East Bayan Obo Ore Mine in poor oxidation properties and the main minerals of the physical and chemical properties, through a large number of experimental research, the development of weak magic magic Integrated flotation recovery of iron and rare 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(nèi)蒙古科 技大學(xué)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(guó)內(nèi)外現(xiàn)狀 .................................................................................. 5 鐵資源國(guó)內(nèi)外 現(xiàn)狀 ............................................................................... 5 稀土國(guó)內(nèi)外現(xiàn)狀 .................................................................................... 7 研究?jī)?nèi)容及技術(shù)思路 ................................................................................... 8 鐵礦選礦研究?jī)?nèi)容 及技術(shù)思路 ................................................................ 8 稀土資源的研究?jī)?nèi)容及技術(shù)思路 ........................................................ 9 氟的研究?jī)?nèi)容及技術(shù)思路 ................................................................. 12 第二章 工藝礦物學(xué)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(chǎn)品的化學(xué)組成 ........................................................ 14 氧化礦系列流程產(chǎn)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(yàn)分析 ........................................................................... 20 適當(dāng)細(xì)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(chǎn)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(yàn)研究 .................................................. 22 總 論 .................................................................................................. 22 試驗(yàn)礦樣 ......................................................................................... 22 選礦試驗(yàn)與結(jié)果 ................................................................................. 24 包鋼選礦廠降 低氟含量的選礦試驗(yàn)研究及技術(shù)攻關(guān) .................................. 29 總論 .................................................................................................. 29 含氟礦物的性質(zhì) ............................................................................. 29 氟在選礦流程中的分布 ................................................................... 30 降低鐵精礦中氟含量的生產(chǎn)措施 ...................................................... 32 結(jié)語(yǔ) ............................................................................................................ 34 參考文獻(xiàn) ： ........................