首页 | 本学科首页   官方微博 | 高级检索  
     

齐大山西石砬子赤褐铁矿工艺矿物学研究
引用本文:刘应志,张淑敏,李艳军,袁帅.齐大山西石砬子赤褐铁矿工艺矿物学研究[J].金属矿山,2021,50(7):110-114.
作者姓名:刘应志  张淑敏  李艳军  袁帅
作者单位:东北大学资源与土木工程学院,辽宁沈阳110819;难采选铁矿石资源高效开发利用技术国家地方联合工程研究中心,辽宁沈阳110819;东北大学资源与土木工程学院,辽宁沈阳110819;难采选铁矿石资源高效开发利用技术国家地方联合工程研究中心,辽宁沈阳110819;东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819
基金项目:国家自然科学基金重点项目(编号:51734005)
摘    要:为了提高西石砬子赤褐铁矿选别效果,通过化学多元素分析、XRD分析、铁物相分析等手段,对有代表性的矿石进行了系统的工艺矿物学研究.结果表明:①齐大山西石砬子赤褐铁矿TFe品位27.88%,主要脉石成分SiO2含量为55.65%,有害成分P、S含量分别为0.006%、0.005%.②矿石中金属矿物主要为赤铁矿和磁铁矿,褐铁...

关 键 词:工艺矿物学  嵌布特征  赤铁矿  磁铁矿

Processing Mineralogical Study of Qidashan Xishilazi Hematite and Limonite
LIU Yingzhi,ZHANG Shumin,LI Yanjun,YUAN Shuai.Processing Mineralogical Study of Qidashan Xishilazi Hematite and Limonite[J].Metal Mine,2021,50(7):110-114.
Authors:LIU Yingzhi  ZHANG Shumin  LI Yanjun  YUAN Shuai
Affiliation:1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; 2. National-local Joint Engineering Research Center of High-efficient Exploitation Technology for Refractory Iron Ore Resources, Shenyang 110819, China; 3. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
Abstract:In order to improve the separation effect of hematite and limonite in Xishilazi, systematic process mineralogy research was carried out on representative ores through chemical multi-element analysis, XRD analysis, iron phase analysis and so on. The results showed that:①The TFe grade of hematite and limonite in Xishilazi of Qidashan is 27.88%, and the contents of the main gangue component SiO2 is 55.65%. The contents of harmful elements P and S in the ore are 0.006% and 0.005%, respectively. ②The main metallic minerals in the ore are hematite and magnetite, followed by a small amount of limonite and a trace of pyrite. Non-metallic minerals are mainly quartz and a small amount of chlorite and muscovite. The iron in the ores mainly occurs in hematite and limonite, followed by magnetic iron. ③The ore structure consists of automorphic to semi-automorphic crystal structure, pseudomorphic structure, residual structure and metasomatic structure. The ore is mainly in the form of striped structure and disseminated structure. ④Primary hematite and magnetite are mutually embedded in the ore. Magnetite is oxidized and altered to generate pseudo hematite, and secondary hematite is speckled, veined, reticulated and spider-like distribution in the magnetite. Hematite and magnetite are immiscible intergranular particles, and the two are difficult to dissociate from each other and could be recovered together. ⑤Quartz is mainly produced in automorphic granular aggregates, with fine dissemination particle size, and a small amount of fine chlorite and muscoite are embedded between particles. ⑥Magnetite and hematite are mainly distributed in medium grains, and the contents of fine grains is large. The distribution rate bellow 0.038 mm grain size is as high as 20.22%. It is difficult to achieve completely monomer separation and easy to be lost in tailings, causing difficult in recovery.
Keywords:
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《金属矿山》浏览原始摘要信息
点击此处可从《金属矿山》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号