Upgrade of nickel and iron from low-grade nickel laterite by improving direct reduction-magnetic separation process

2021 ◽  
Author(s):  
Hong-yu Tian ◽  
Zheng-qi Guo ◽  
Ruo-ning Zhan ◽  
Jian Pan ◽  
De-qing Zhu ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Direct Reduction ◽  
Separation Process ◽  
Low Grade ◽  
Nickel Laterite

Experimental Study on Reduction-Magnetic Separation Process of Low-grade Nickel Laterite Ore

Ni-Co 2013 ◽  
2013 ◽  
pp. 221-229
Author(s):  
Chen Fa-tao ◽  
Zhang Bo ◽  
Li Wen-cai ◽  
Wang Qiang ◽  
Hong Xin
Keyword(s):  
Experimental Study ◽  
Magnetic Separation ◽  
Separation Process ◽  
Low Grade ◽  
Nickel Laterite ◽  
Nickel Laterite Ore ◽  
Laterite Ore

Experimental Study on Reduction-Magnetic Separation Process of Low-Grade Nickel Laterite Ore

Ni-Co 2013 ◽  
2013 ◽  
pp. 221-229
Author(s):  
Chen Fa-tao ◽  
Zhang Bo ◽  
Li Wen-cai ◽  
Wang Qiang ◽  
Hong Xin
Keyword(s):  
Experimental Study ◽  
Magnetic Separation ◽  
Separation Process ◽  
Low Grade ◽  
Nickel Laterite ◽  
Nickel Laterite Ore ◽  
Laterite Ore

scholarly journals Production of Ferronickel Concentrate from Low-Grade Nickel Laterite Ore by Non-Melting Reduction Magnetic Separation Process

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1340
Author(s):  
Guorui Qu ◽  
Shiwei Zhou ◽  
Huiyao Wang ◽  
Bo Li ◽  
Yonggang Wei
Keyword(s):  
Magnetic Separation ◽  
Separation Process ◽  
Phase Changes ◽  
Low Grade ◽  
Nickel Laterite ◽  
Nickel Laterite Ore ◽  
Roasting Temperature ◽  
Grinding Time ◽  
Optimal Reduction ◽  
Laterite Ore

The production of ferronickel concentrate from low-grade nickel laterite ore containing 1.31% nickel (Ni) was studied by the non-melting reduction magnetic separation process. The sodium chloride was used as additive and coal as a reductant. The effects of roasting temperature, roasting duration, reductant dosage, additive dosage, and grinding time on the grade and recovery were investigated. The optimal reduction conditions are a roasting temperature of 1250 °C, roasting duration of 80 min, reductant dosage of 10%, additive dosage of 5%, and a grinding time of 12 min. The grades of nickel and iron are improved from 2.13% and 51.12% to 8.15% and 64.28%, and the recovery of nickel is improved from 75.40% to 97.76%. The research results show that the additive in favor of the phase changes from lizardite phase to forsterite phase. The additive promotes agglomeration and separation of nickel and iron.

Direct Reduction Experiment on Low-Grade Limonite at JiangXi

2013 ◽  
Vol 734-737 ◽  
pp. 1029-1032 ◽  
Author(s):  
Jiang An Chen ◽  
Jun Liu
Keyword(s):  
Magnetic Separation ◽  
Direct Reduction ◽  
Influence Factors ◽  
Low Grade ◽  
Iron Concentrate ◽  
Reduction Experiment ◽  
Mesh Screen ◽  
Concentrate Grade ◽  
Roasting Time ◽  
Separation Conditions

Considered the properties of limonite ore at Jiangxi, the raw ore pressing ball - direct reduction - magnetic separation flowsheet have been adopted. the pressing ball conditions, the influence factors and the grinding magnetic separation conditions experiments were carried out. The results shown that: When the dosage of coal was 20%, water was 10%, CMC was 0.5%, pressing ball under the pressure of 190 kN, the calcination temperature was 1100 °C, the roasting time is 50 min, roasted ore were magnetic separated after grinded to 85% through 200 mesh screen. the iron concentrate grade of 92.48% and recovery rate of 93.45% were achieved finally.

Pilot scale test of producing nickel concentrate from low-grade saprolitic laterite by direct reduction-magnetic separation

2014 ◽  
Vol 21 (5) ◽  
pp. 1771-1777 ◽  
Author(s):  
Guo-lin Zheng ◽  
De-qing Zhu ◽  
Jian Pan ◽  
Qi-hou Li ◽  
Yue-ming An ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Direct Reduction ◽  
Pilot Scale ◽  
Low Grade ◽  
Nickel Concentrate ◽  
Scale Test ◽  
Pilot Scale Test

scholarly journals Iron Recovery from Discarded Copper Slag in a RHF Direct Reduction and Subsequent Grinding/Magnetic Separation Process

Minerals ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 119 ◽  
Author(s):  
Zhicheng Cao ◽  
Tichang Sun ◽  
Xun Xue ◽  
Zhanhua Liu
Keyword(s):  
Magnetic Separation ◽  
Direct Reduction ◽  
Copper Slag ◽  
Separation Process ◽  
Iron Recovery
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