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金属矿山 2009, Vol. 39 Issue (11) :54-56+118    DOI:
矿物工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << Previous Articles | Next Articles >>
微细鲕状赤铁矿颗粒絮凝行为研究
李凤久1,2,3,牛福生1,2,倪文3
1.河北理工大学;2.河北省矿业开发与安全技术重点实验室;3.北京科技大学
Study on Flocculation Behavior of Fine Oolitic Hematite Ores
Li Fengjiu1,2,3,Niu Fusheng1,2,Ni Wen3
1.Hebei polytechnic university;2.Key Laboratory of Mineral Development and Security  Technology of Hebei Province;3.University of Science and Technology Beijing

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摘要 嵌布粒度极细的鲕状赤铁矿(小于20 μm),极易泥化,具有严重的矿泥覆盖现象,传统的重选、磁选、浮选选矿工艺处理这类矿石,很难取得满意效果,致使微细铁矿物颗粒无法有效回收,造成有用矿物大量流失。已有大量的研究工作表明,选择性絮凝法是处理微细粒赤铁矿的有效分选工艺。为此,针对微细粒鲕状赤铁矿,研究了不同絮凝剂用量、搅拌时间、剪切速率及分散剂用量对絮凝行为的影响,为进一步选择性絮凝分选研究提供基础。
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李凤久
牛福生
倪文
关键词微细颗粒   鲕状赤铁矿   选择性絮凝   分选   分散剂     
Abstract: The fine oolitic hematite ores (<20 μm) are easily covered by ore slimes, therefore, it is very difficult to get a satisfactory separation result with traditional crafts, like gravity separation, magnetic separation, and flotation.Hence, the tiny iron ores can not be recovered effectively, leading to about a large of useful minerals running off.Lots of researches indicated that the selective flocculation was an effective separation craft in many research works.In view of oolitic hematite ores, different effects of flocculant dosage, mixing time, shear rate and the amount of dispersant on the flocculation behavior are studied, laying a foundation for further selective flocculation separation research.
KeywordsFine Particle   Oolitic Hematite Ore   Selective flocculation   Separation   Dispersant     
Fund:

河北省重点基础研究项目(编号:08966710D),唐山市21项重大工程项目(编号:07130205A-1)。

引用本文:   
李凤久, 牛福生, 倪文.微细鲕状赤铁矿颗粒絮凝行为研究[J]  金属矿山, 2009,V39(11): 54-56+118
LI Feng-Jiu, NIU Fu-Sheng, NI Wen.Study on Flocculation Behavior of Fine Oolitic Hematite Ores[J]  METAL MINE, 2009,V39(11): 54-56+118
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