金属矿山
首 页  |  刊物简介  |  编委会  |  理事会  |  获奖情况  |  评价指标  |  被收录情况  |  投稿须知  |  广告服务  |  杂志订阅  |  中国矿业114网  |  留言板  |  联系我们  |  English
金属矿山 2018, Vol. 47 Issue (04) :27-34    DOI:
专题综述 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << Previous Articles | Next Articles >>
气泡、油泡和活性油质气泡在浮选中的应用和机理探讨
周芳1,2,池汝安1,2,3
1.武汉工程大学化工与制药学院,湖北 武汉 430073;2.绿色化工过程省部共建教育部重点实验室,湖北 武汉 430073;3.中南大学资源加工与生物工程学院,湖南 长沙 410083
Discussion on Application and Mechanism of Air Bubble,Oil Bubble and Reactive Oil Bubble in Flotation
Zhou Fang1,2,Chi Ru′an1,2,3
1.School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430073,China;2.Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan 430073,China;3.School of Minerals Processing & Bioengineering,Central South University,Changsha 410083,China

摘要
参考文献
相关文章
Download: PDF (0KB)   HTML 1KB   Export: BibTeX or EndNote (RIS)      Supporting Info
摘要 浮选是高效回收矿产资源应用最广泛的技术方法。气泡作为浮选载体在浮选过程中有着举足轻重的作用。以气泡-油泡-活性油质气泡为线索,对比了传统气泡与改性后油泡(气泡表层包裹一薄层油性捕收剂)、活性油质气泡(气泡表层包裹一薄层含有捕收剂的中性油)的浮选特性。通过浮选动力学分析了气泡与油泡、活性油质气泡浮选的区别,传统气泡浮选与改性后的油泡浮选均为2步反应,而活性油质气泡实现了1步浮选,大大降低了气泡与矿物颗粒间的黏附功,提高了浮选效率。从油-水界面表面活性剂解离度这个角度分析了活性油质气泡的表面性质,指出活性油质气泡的表面电性由表层中性油中添加的捕收剂和pH决定。通过DLVO理论计算了不同气泡与矿物颗粒间的相互作用能,从理论上解释了活性油质气泡浮选指标更好的原因。活性油质气泡在选矿中的成功应用表明,活性油质气泡与矿物表面的作用均强于传统气泡与矿物表面的作用,即活性油质气泡对矿物具有更强的捕收能力,相较于气泡和油泡的浮选,活性油质气泡浮选有利于提高浮选效率,降低捕收剂用量。活性油质气泡作为浮选载体从气泡这一特殊视觉为浮选行业开辟了一个崭新的研究领域。
Service
把本文推荐给朋友
加入我的书架
加入引用管理器
Email Alert
RSS
作者相关文章
周芳
池汝安
关键词浮选   气泡   油泡   活性油质气泡     
Abstract: Flotation is widely employed to recovery minerals.Air bubble as the flotation carrier plays an important role in the flotation process.Air bubble flotation,modified oil bubble(air bubbles covered with a thin layer of oil collectors) flotation and reactive oily bubble flotation (air bubbles covered with a thin layer of neutral oil containing collectors) were compared in terms of air bubble-oil bubble-reactive oily bubble.The flotation dynamics indicate that the conventional air bubble flotation and the modified oil bubble flotation is a two-step process,but the reactive oily bubble can achieve one-step flotation,which decrease the adhesion energy of bubble and mineral particles and improve the flotation efficiency.The surface property of reactive oily bubble was analyzed from the liberation degree of collector at oil-water interface,suggesting that the surface property of reactive oily bubble is determined by the solution pH and the collector added in the neutral oil.DLVO theory is applied to analyze the interaction energy between different bubbles and mineral particles to explain the superiority of reactive oily bubble over air bubble and oily bubble in the flotation process.The reactive oil bubble successful application in flotation reveals that the interaction between reactive oily bubble and mineral surface is stronger than traditional interaction between air bubbles and mineral surface.The reactive oily bubble shows a stronger collecting power to minerals compared with air bubble and oil bubble flotation.This novel technology can improve the flotation efficiency and decrease the collector dosage.Reactive oily bubble as flotation carrier opened up a new research field from a special visual of bubble for the flotation industry.
KeywordsFlotation   Bubble   Oil bubble   Reactive oily bubble     
Fund:

基金项目:国家自然科学基金青年基金项目(编号:51404171)。

引用本文:   
周芳, 池汝安.气泡、油泡和活性油质气泡在浮选中的应用和机理探讨[J]  金属矿山, 2018,V47(04): 27-34
ZHOU Fang, CHI Ru-An.Discussion on Application and Mechanism of Air Bubble,Oil Bubble and Reactive Oil Bubble in Flotation[J]  METAL MINE, 2018,V47(04): 27-34
Copyright 2010 by 金属矿山