| 攀西某钒钛磁铁精矿浮选脱硫实验 |
| |
| 引用本文： | 吴宁.攀西某钒钛磁铁精矿浮选脱硫实验[J].矿产综合利用,2022,43(3):126-131. |
| |
| 作者姓名： | 吴宁 |
| |
| 作者单位： | 攀钢集团攀枝花钢铁研究院有限公司，钒钛资源综合利用国家重点实验室，四川 攀枝花 617000 |
| |
| 摘 要： | 攀西某钒钛磁铁精矿中的TFe、TiO2和S的品位分别为53.75%、12.55%和0.76%，铁、钛主要以钒钛磁铁矿、钛铁矿的形式赋存，硫主要以磁黄铁矿的形式赋存。磁黄铁矿单体解离度低，富连生体多。为将该钒钛磁铁精矿中的硫脱除，采用浮选工艺进行了降硫实验研究。结果表明:采用一粗四精二扫浮选闭路流程，在以硫酸为pH值调整剂，丁黄+丁铵（5∶1）为捕收剂，2#油为起泡剂，粗选用量分别为2000 g/t、300 g/t、40 g/t，粗扫选得到的硫粗精矿再磨细度-38 μm 93.33%的条件下，可以获得S品位为28.65%，S回收率59.46%的硫精矿，TFe品位为53.79%，TFe回收率为98.51%，铁精矿S品位为0.29%的铁精矿。
|
| 关 键 词： | 铁精矿 浮选 脱硫 |
| 收稿时间： | 2021-04-14 |
Experimental Study on the Flotation Desulfurization of Vanadium Titanium Magnetite Concentrate in Panxi |
| |
| Affiliation: | Panzhihua Iron and Steel Research Institute Co., Ltd. of Panzhihua Iron and Steel Group, State Key Laboratory for Comprehensive Utilization of Vanadium and Titanium Resources, Panzhihua, Sichuan, China |
| |
| Abstract: | Grades of Fe, TiO2 and S in the vanadium titanium magnetite concentrate in Panxi are 53.75%, 12.55% and 0.76%. Fe and Ti are mainly in the form of vanadium-titanium magnetite and ilmenite, while sulfur is mainly in the form of magnetic pyrite. In order to reduce the sulfur content of this vanadium titanium magnetite concentrate, a study on desulfurization was carried out by flotation. Results show that adopting the flotation closed circuit process with once roughing, four times cleaning and twice scavenging, the sulfur concentrate with S grade of 28.65% and S recovery of 59.46%, and iron concentrate with TFe grade of 53.79%, TFe recovery of 98.51%, S grade of 0.29 % can be obtained with the following conditions: sulfuric acid as pH regulator, butyl xanthate + ammonium butyrate (5:1) as collector, 2# oil as frother, of which the dosage were 2000 g/t, 300 g/t, 40 g/t in roughing and regrinding fineness of sulfide concentrate by roughing and scavenging was -38 μm content of 93.33 %. |
| |
| Keywords: | |
|
| 点击此处可从《矿产综合利用》浏览原始摘要信息 |
|
点击此处可从《矿产综合利用》下载全文 |
|
