Nonmolten state metalized reduction of saprolitic laterite ores: Effective extraction and process optimization of nickel and iron

B Ma, X Li, W Yang, D Hu, P Xing, B Liu… - Journal of cleaner …, 2020 - Elsevier
Nickel exists in silicate and iron oxide minerals in isomorphic form … These characteristics
are favorable for the gas–solid phase reaction. Thus, when coal is used as a reducing agent, the …

[PDF][PDF] Direct reduced iron: Production

SK Dutta, R Sah - Encyclopedia of Iron, Steel, and Their Alloys, 2016 - researchgate.net
… is removed from the iron oxide, using coal or reformed natural … from iron oxide is removed
by a gaseous reducing agent. … is in equilibrium with a solid phase must also be in equilibrium …

The effect of sulfur in rotary kiln fuels on nickel laterite calcination

MH Uddin, LT Khajavi - Minerals Engineering, 2020 - Elsevier
… of rotary kiln fuels (eg, coal) were contacted with the ore. At … or in solid phase is completely
converted to iron and nickel … for all the oxides and reduced species in the nickel laterite ores. It …

The impact of raw material selection on damring formation and pre-reduction during ferrochrome production

Y Van Staden - 2018 - repository.nwu.ac.za
… into a counter current rotary kiln fired by pulverised fuel (PF) coal, in … of the reducing agent,
initially increased the rate of reduction, until … 3+ diffusion in the solid phase. MgO inhibited the …

The effect of sulfur content of rotary kiln fuel on the composition of nickel laterite calcine

S Sarbishei, LT Khajavi - Fuel, 2020 - Elsevier
Using coal with higher sulfur content, improving the reducing … g of the laterite ore and 1.5
g graphite as a reducing agent. … sulfur from gas to the solid phase. Considering the original …

Melting of oxidized nickel ores in a barbotage unit: I. Thermodynamic analysis of melting

RA Pakhomov, RV Starykh - Russian Metallurgy (Metally), 2015 - Springer
reduction of oxidized ores is solid phase roasting in tubular … simulta neous decrease in the
consumption of a reducing agent by … (supply of raw or slightly dried ore with coal to an LBM fur …

Sulfur deportment in nickel laterite calcination for ferronickel production via rotary kiln-electric furnace route

S Sarbishei - 2021 - open.library.ubc.ca
… is provided by combustion of the fuels such as coal, which … The nickel contents in the
oxide ores are variable and … Since carbon and carbon monoxide are the reducing agents of …

[HTML][HTML] Investigation into the coal-based direct reduction behaviors of various vanadium titanomagnetite pellets

Y Shi, D Zhu, J Pan, Z Guo, S Lu, Y Xue - Journal of Materials Research …, 2022 - Elsevier
… of DR is to partially reduce iron oxides to metallic iron for the … according to the type of
reducing agent. Although the gas-… of Pellet 1 is solid-phase consolidation of mineral grains. In …

Recovery of waste printed circuit boards through pyrometallurgy

E Ma - Electronic waste management and treatment …, 2019 - Elsevier
… In the use of solid reductant coal or coke, … solid phase contact, the reaction cannot be carried
out well by the contact surface; the Co gas reducing agent plays a main role in the reduction

Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation

Y Sun, Y Han, P Gao, Z Wang, D Ren - International Journal of Minerals …, 2013 - Springer
… (7) When coal was used as the reductant, solid phase re… to reduce iron oxides from iron
ores using a coal-based direct … then separated through a CXG-φ50 min magnetic tube with the …