Abstract：The thermodynamics and kinetics of the low- temperature reduction of laterite nickel ore show that the ferronickel alloy particles can be obtained at semi- molten state at about 1 350 ℃.The internal heating and selective heating of microwave can obviously improve the heating efficiency and carburizing effect, and promote the accumulation of nickel iron powder dispersed in the slag to form the ferronickel particles. On this basis, the new technology of microwave smelting ferronickel with low temperature reduction of laterite nickel ore has been developed, and the world’s first new technology demonstration production line has been built. Compared with the RK- EF process, the new technology cancels the subsequent electric smelting furnace, reduces the smelting temperature by about 250 ℃, and makes the power consumption decrease by more than 45%. The new technology enables the production of nickel iron alloy with high efficiency, low energy consumption, environmental protection and low cost.
庞建明，赵沛，郭培民. 红土镍矿低温还原＋微波冶炼镍铁新技术[J]. 中国冶金, 2017, 27(9): 70-77.
PANG Jian- ming,ZHAO Pei,GUO Pei- min. New technology of microwave smelting ferronickel with low- temperature reduction of lateritic nickel ore. China Metallurgy, 2017, 27(9): 70-77.
2017, Vol. 27 
