Effectiveness of sodium silicate as gangue depressants in iron ore slimes flotation

被引:0
作者
Danda Srinivas Rao
Tadiparthi Venkata VijayaKumar
Sripada Subba Rao
Swarna Prabhakar
Guntamadugu Bhaskar Raju
机构
[1] NationalMetallurgicalLaboratory-MadrasCentre,CouncilofScientificandIndustrialResearch-MadrasComplex,Chennai,India
关键词
iron ores; sodium silicate; depressants; flotation;
D O I
暂无
中图分类号
TD951 [黑色金属矿选矿];
学科分类号
081902 ;
摘要
The recovery of iron from the screw classifier overflow slimes by direct flotation was studied.The relative effectiveness of sodium silicates with different silica-to-soda mole ratios as depressants for silica and silicate bearing minerals was investigated.Silica-to-soda mole ratio and silicate dosage were found to have significant effect on the separation efficiency.The results show that an increase of Fe content in the concentrate is observed with concomitant reduction in SiO2 and Al2O3 levels when a particular type of sodium silicate at a proper dosage is used.The concentrate of 58.89wt% Fe,4.68wt% SiO2,and 5.28wt% Al2O3 with the weight recovery of 38.74% and the metal recovery of 41.13% can be obtained from the iron ore slimes with 54.44wt% Fe,6.72wt% SiO2,and 6.80wt% Al2O3,when Na2SiO3 with a silica-to-soda mole ratio of 2.19 is used as a depressant at a feed rate of 0.2 kg/t.
引用
收藏
页码:515 / 522
页数:8
相关论文
共 50 条
[31]   Flotation separation of pyrite from arsenopyrite using sodium carbonate and sodium humate as depressants [J].
Liu, Ruizeng ;
Li, Jialei ;
Wang, Yunwei ;
Liu, Dianwen .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2020, 595
[32]   Use of Iron Ore Tailing as Raw Material for Two Products: Sodium Silicate and Geopolymers [J].
Prates, Caroline D. ;
Lima, Athos S. ;
Ferreira, Igor C. ;
De Paula, Fabiano G. F. ;
Pinto, Paula S. ;
Ardisson, Jose D. ;
Lago, Rochel M. ;
Teixeira, Ana Paula C. .
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2022, :809-818
[33]   ROLE OF SODIUM HEXAMETAPHOSPHATE IN FLOTATION OF A NICKEL ORE [J].
Feng, Bo ;
Wang, Pengcheng ;
Lu, Yiping ;
Feng, Qiming .
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, 2016, 52 (01) :170-181
[34]   Effect of pulp rheology on flotation of nickel sulphide ore with fibrous gangue particles [J].
Genc, A. Merve ;
Kilickaplan, I. ;
Laskowski, J. S. .
CANADIAN METALLURGICAL QUARTERLY, 2012, 51 (04) :368-375
[35]   New reagent formulations for selective flotation of scheelite from a skarn ore with complex calcium minerals gangue [J].
Filippov, L. O. ;
Foucaud, Y. ;
Filippova, I. V. ;
Badawi, M. .
MINERALS ENGINEERING, 2018, 123 :85-94
[36]   BATCH FLOTATION TESTS BY FATTY-ACID ON A PHOSPHATE IRON-OXIDE SILICATE REGOLITH ORE SAMPLE FROM SOKLI, FINLAND [J].
QUN, W ;
HEISKANEN, K .
MINERALS ENGINEERING, 1990, 3 (05) :473-481
[37]   Flotation Tests of Zinc Oxide Ore with Iron [J].
Yang, Jinlin ;
Zhang, Hongmei ;
Mo, Wei ;
Ma, Shaojian ;
Su, Xiujuan .
POWDER TECHNOLOGY AND APPLICATION V, 2013, 826 :57-60
[38]   Reprocessing of Sangan iron ore tailings by flotation [J].
Ghasemi, S. ;
Behnamfard, A. ;
Arjmand, R. .
JOURNAL OF MINING AND ENVIRONMENT, 2019, 10 (03) :729-745
[39]   Sulphur removal of iron ore tailings by flotation [J].
Nakhaei, Fardis ;
Irannajad, Mehdi .
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2017, 38 (12) :1755-1763
[40]   Flotation collophane from high-iron phosphate ore by using sodium ligninsulfonate as depressant [J].
Yu, Jun ;
Ge, Yingyong ;
Guo, Wenbin ;
Guo, Xiaolong .
SEPARATION SCIENCE AND TECHNOLOGY, 2017, 52 (03) :557-566