| 不同絮凝剂对微细粒赤铁矿、石英的絮凝行为研究 |
| |
| 引用本文： | 张晋霞,牛福生.不同絮凝剂对微细粒赤铁矿、石英的絮凝行为研究[J].中国矿业,2016,25(3). |
| |
| 作者姓名： | 张晋霞 牛福生 |
| |
| 作者单位： | 河北联合大学矿业工程学院,河北联合大学矿业工程学院 |
| |
| 基金项目： | 国家自然科学基金（微细赤铁矿颗粒絮凝浮选过程三相流体特征的基础研究，项目编号：51474087） |
| |
| 摘 要： | 通过单矿物沉降实验,考查了不同絮凝剂的种类、搅拌强度对赤铁矿、石英的絮凝行为影响规律。结果表明,4种絮凝剂剂对赤铁矿絮凝效果由强至弱的顺序为:苛化玉米淀粉羧甲基纤维素钠十二烷基磺酸钠聚丙烯酰胺。在一定范围内增强搅拌强度有利于微细粒颗粒的絮凝,但超过某一临界值后絮凝效果变差。Zeta电位测定表明,随着淀粉用量的增加,赤铁矿的电位逐渐增大,降低了颗粒间的静电斥力,促进淀粉在赤铁矿表面的吸附。
|
| 关 键 词： | 微细粒 赤铁矿 絮凝行为 机理研究 |
| 收稿时间： | 1/4/2015 12:00:00 AM |
| 修稿时间： | 2015/2/28 0:00:00 |
Study on Flocculation Behaviors Mechanism of Different Adjusting AgentsofSFine Hematite and Quartz Particle |
| |
| ZHANG Jinxia and NIU Fusheng.Study on Flocculation Behaviors Mechanism of Different Adjusting AgentsofSFine Hematite and Quartz Particle[J].China Mining Magazine,2016,25(3). |
| |
| Authors: | ZHANG Jinxia and NIU Fusheng |
| |
| Affiliation: | College of Mining Engineering,Hebei United University,Hebei Tangshan,College of Mining Engineering,Hebei United University,Hebei Tangshan |
| |
| Abstract: | The influences of flocculant types, stirring intensity on flocculation behaviors of fine hematite and quartz particle were studied by sedimentation experiments. The results shows that four kinds of flocculants in the same concentration, the order of fine hematite was corn starch > sodium carboxymethyl cellulose > sodium dodecylsulphate> polyacrylamideS. The hematite and quartz particles can be better flocculated with the increase of stirring speed in a range, but the flocculation effect becomes worse when the stirring speed exceed a critical value. The flocculation mechanism of corn starch on fine hematite was analysed by measurements of zeta potentials. |
| |
| Keywords: | fine particle hematite flocculation behavior mechanism study |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国矿业》浏览原始摘要信息 |
|
点击此处可从《中国矿业》下载全文 |
