| 钛精矿重选分离含硅物相影响因素研究 |
| |
| 引用本文： | 林银河,李京伟,王哲,唐勇,程相魁,黄晓丽. 钛精矿重选分离含硅物相影响因素研究[J]. 硅酸盐通报, 2021, 40(6): 2070-2074 |
| |
| 作者姓名： | 林银河 李京伟 王哲 唐勇 程相魁 黄晓丽 |
| |
| 作者单位： | 宜宾学院材料与化学工程学部,宜宾 644000;合肥工业大学材料科学与工程学院,合肥 230009;北京科技大学钢铁冶金新技术国家重点实验室,北京 100083;宜宾天原集团股份有限公司研究院,宜宾 644007;攀枝花学院国际钒钛研究院,攀枝花 617000;攀枝花市科技发展战略研究所,攀枝花 617000 |
| |
| 基金项目： | 国家自然科学基金(51874272,U1960101);中国科学院光伏与节能重点实验室基金(PECL2019KF003);重庆市自然科学基金(cstc2020jcyj-msxmX0060);钢铁冶金新技术国家重点实验室开放基金(KF20-03);四川省钒钛综合利用实验室基金(2018FTSZ37);西部青年学者支持计划 |
| |
| 摘 要： | 针对四川某钛精矿中存在的硅含量过高的问题,提出了摇床重选法分离二氧化硅的方法.通过球磨工艺获得不同粒径颗粒,然后采用摇床进行重选,研究粒径大小、粒径组分占比、冲程等因素对钛精矿含硅相的分离效果.结果表明,随着磨矿时间的增加,-200目(<75μm)钛精矿占比逐渐增加.当研磨时间为8 min时,-200目钛精矿的占比为8...
|
| 关 键 词： | 钛精矿 二氧化硅分离 TiO2品位 重力分选 冲程 回收 |
| 收稿时间： | 2021-01-20 |
Influencing Factors of Si Phase Separation from Ilmenite by Gravity Concentration Method |
| |
| LIN Yinhe,LI Jingwei,WANG Zhe,TANG Yong,CHENG Xiangkui,HUANG Xiaoli. Influencing Factors of Si Phase Separation from Ilmenite by Gravity Concentration Method[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(6): 2070-2074 |
| |
| Authors: | LIN Yinhe LI Jingwei WANG Zhe TANG Yong CHENG Xiangkui HUANG Xiaoli |
| |
| Abstract: | High content of Si phase is a critical problem in the ilmenite for the upgrade of titanium slag from Sichuan. The gravity concentration method was proposed to separate the SiO2 phase from the ilmenite. Particles with different size were prepared by ball milling process, then the particles were treated by heavy machine. The separation effects of different factors (such as particle size, particle proportion and stroke) on the Si phase from ilmenite were investigated. These results indicate that the proportion of particles with less than -200 mesh (＜75 μm) increases with the grinding time extension. When the grinding time is 8 min, the proportion of particles with less than -200 mesh reaches 83.0% (mass fraction). With the increasing of the stroke, the content of SiO2 and the recovery rate of TiO2 increase. When the stroke is 15 mm, the content of SiO2 decreases to 1.07% (mass fraction) from 2.46%. Three different parties are divided after gravity concentration treatment, the content relation of TiO2 is ilmenite>middling product>tailing, and the content relation of SiO2 is ilmenite2 reaches 0.93% (mass fraction) when the proportion of particles with less than -200 mesh is 85.5% (mass fraction). |
| |
| Keywords: | ilmenite SiO2 separation TiO2 content gravity concentration separation stroke recovery |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《硅酸盐通报》浏览原始摘要信息 |
|
点击此处可从《硅酸盐通报》下载免费的PDF全文 |
|
