| 油酸钠浮选体系中蓝晶石族矿物与石英的交互影响 |
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| 引用本文： | 牛艳萍,李亚,王英凯,许洪峰,何章辉.油酸钠浮选体系中蓝晶石族矿物与石英的交互影响[J].有色金属工程,2022(10). |
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| 作者姓名： | 牛艳萍 李亚 王英凯 许洪峰 何章辉 |
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| 作者单位： | 黑龙江省地质矿产实验测试研究中心,黑龙江省地质矿产实验测试研究中心,黑龙江省地质矿产实验测试研究中心,黑龙江省矿业集团有限责任公司,黑龙江省地质矿产实验测试研究中心 |
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| 基金项目： | (Foundation item)：矿物加工科学与技术国家重点实验室开放研究(BGRIMM-KJSKL-2017-11)(Project(BGRIMM-KJSKL-2017-11)The Found of State Key Laboratory of Mineral Processing) |
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| 摘 要： | 对蓝晶石族矿物和石英进行浮选交互影响的规律研究,运用扩展DLVO理论分析、显微镜观察和TOC法测定药剂吸附量等手段对浮选交互影响的机理进行分析。结果表明：在pH值为8,当FeCl3.6H2O用量20mg/L、油酸钠用量150mg/L时,随着各粒级蓝晶石族矿物与石英颗粒间的界面力相互作用距离越小,总E-DLVO势能的负值越大,说明各粒级石英与不同粒级蓝晶石族矿物的作用力为吸引力,相互之间存在着粘附罩盖作用,又通过显微镜观察进一步验证了不同粒级蓝晶石族矿物与石英之间确实发生了粘附现象。蓝晶石族矿物与石英之间E-DLVO作用能顺序为：硅线石与石英>红柱石与石英>蓝晶石与石英。颗粒之间的粘附罩盖是造成蓝晶石族矿物与石英浮选过程中交互影响的主要原因之一,包括细粒级石英可以向粗粒级蓝晶石族矿物粘附,表现为矿泥罩盖；细粒级蓝晶石族矿物可以向粗粒级石英粘附；细粒级蓝晶石族矿物可以与细粒级石英粘附聚集。在油酸钠体系中,可以利用柠檬酸来有效削弱石英与蓝晶石族矿物之间的粘附罩盖作用。
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| 关 键 词： | 蓝晶石族矿物 浮选 交互影响 扩展DLVO理论 |
| 收稿时间： | 2022/3/23 0:00:00 |
| 修稿时间： | 2022/4/8 0:00:00 |
Interaction Between Kyanite Group Minerals and Quartz in Sodium Oleate Flotation System |
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| NIN Yanping,LI Y,WANG Yingkai,XU Hongfeng and HE Zhanghui.Interaction Between Kyanite Group Minerals and Quartz in Sodium Oleate Flotation System[J].Nonferrous Metals Engineering,2022(10). |
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| Authors: | NIN Yanping LI Y WANG Yingkai XU Hongfeng and HE Zhanghui |
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| Affiliation: | Heilongjiang Provincial Research Center of Geological and Mineral Experimental Testing,Heilongjiang Harbin,Heilongjiang Provincial Research Center of Geological and Mineral Experimental Testing,Heilongjiang Harbin,Heilongjiang Provincial Research Center of Geological and Mineral Experimental Testing,Heilongjiang Harbin,Heilongjiang Mining Group Co,Ltd,Heilongjiang,Harbin Harbin,Heilongjiang Provincial Research Center of Geological and Mineral Experimental Testing,Heilongjiang Harbin |
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| Abstract: | The law of flotation interaction between kyanite group minerals and quartz was studied. The mechanism of flotation interaction was analyzed by means of extended DLVO theoretical analysis, microscopic observation and TOC method. The results show that when the pH is 8, the FeCl3.6H2O dosage is 20mg/L, and the sodium oleate dosage is 150mg/L, as the interaction distance of the interfacial force between the kyanite group minerals and the quartz particles becomes shorter, The greater the negative value of the total E-DLVO potential energy, as the interaction distance of the interfacial force between the kyanite group minerals and the quartz particles becomes shorter, the negative value of the total E-DLVO potential energy becomes larger, indicating that the force of each grain-level quartz and kyanite minerals is attractive and there is an adhesive cover between them; and it is further confirmed by microscopic observation that the adhesion between the different grades of kyanite minerals and quartz does occur. The sequence of E-DLVO interaction energy between kyanite group minerals and quartz is: sillimanite and quartz>andalusite and quartz>kyanite and quartz. The adhesion cover between the particles is one of the main reasons for the interaction between the kyanite minerals and the quartz flotation process, including the fine-grained quartz can adhere to the coarse-grained kyanite family minerals; fine-grained kyanite minerals can adhere to coarse-grained quartz; fine-grained kyanite minerals can adhere to fine-grained quartz. In the sodium oleate system, citric acid can be utilized to effectively weaken the adhesive covering effect between quartz and kyanite minerals. |
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| Keywords: | kyanite group minerals flotation interaction extended DLVO theory |
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