| 四川某铁矿铁精矿制备超级铁精矿实验 |
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| 引用本文： | 陈宏凯, 杜新, 周政. 四川某铁矿铁精矿制备超级铁精矿实验[J]. 矿产综合利用, 2022, 43(6): 150-154. DOI: 10.3969/j.issn.1000-6532.2022.06.025 |
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| 作者姓名： | 陈宏凯 杜新 周政 |
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| 作者单位： | 1.四川锦宁矿业有限公司，四川 凉山 615000 |
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| 摘 要： | 对四川某铁矿铁精矿进行超级铁精矿选别实验研究，原料中TFe品位65.50%，主要的脉石成分为SiO2，品位为4.82%，有害元素S、P含量较低，磁性铁占有率98.74%，其他物相的铁元素含量很低，且基本不具有磁性，通过继续磨矿-磁选，可提升磁性铁占有率，进而提升铁精矿纯度。实验采用“预先筛分-磨矿分级-磁选-反浮选”的选别工艺制备超级铁精矿，在筛分尺寸0.074 mm，以纳米陶瓷球为磨矿介质，磨矿粒度−0.038 mm 90%，反浮选阳离子捕收剂分段添加量(100+50+50) g/t，玉米淀粉600 g/t的条件下可获得产率24.23%，可获得铁品位71.71%，SiO2含量0.16%，酸不溶物0.16%的超级铁精矿。该工艺磨矿能耗低，药剂制度简单，药剂绿色高效，流程合理，可行性高，同时全流程实验生产的副产品铁精矿产率72.25%，品位65.47%，可作为优质铁精矿销售。
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| 关 键 词： | 超级铁精矿 预先筛分 磁选 反浮选 |
| 收稿时间： | 2020-06-17 |
Super-Grade Iron Concentrate Experimental Study on an Iron Concentrate from Sichuan |
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| Chen Hongkai, Du Xin, Zhou Zheng. Super-Grade Iron Concentrate Experimental Study on an Iron Concentrate from Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(6): 150-154. DOI: 10.3969/j.issn.1000-6532.2022.06.025 |
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| Authors: | Chen Hongkai Du Xin Zhou Zheng |
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| Affiliation: | 1.Sichuan JinNing Mining Co., Ltd., Liangshan, Sichuan, China2.Sichuan Xiye Testing Technology Co., Ltd., Chengdu, Sichuan, China3.Institute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu, Sichuan, China |
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| Abstract: | In terms of the iron concentrate, the TFe grade is 65.50% and mainly gangue is quartz with the content of 4.82%. Additionally, the content of harmful impurity, sulphur and phosphor, is low. Following grinding-magnetic separationis able to enhance the mFe content and grade of concentrate for the reason that the content of mFe is 98.74% and other iron phase is nonmagnetic. The process of prescreening-grinding-classification-magnetic separation-reverse flotation is adopted to the super-grade iron concentrate experimental study of an iron concentrate from Sichuan. When the screen size is 0.074 mm and grinding fitness is -0.038 mm 90%, using the thenanoceramic balls as milling medium, super-grade iron concentrate with yield 24.23%, TFe grade 71.71%, quartz content of 0.16%, acid insoluble content of 0.16% could be obtained. In the process, the usage of corn starch is 600 g/t and the usage of collector is 100+50+50 g/t. The process is reasonable and significantly feasibility with low energy consumption and simple reagent system. Additionally, the process could obtain normal iron concentrate with the yield of 72.25% and TFe grade of 65.47% which could be considered as good iron concentrate product to sell. |
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