China Nonferrous Metallurgy

At present, Pidgeon process is used in magnesium production, which has high energy consumption, low resource utilization efficiency, serious environmental pollution and high carbon emission intensity. This paper analyzed the carbon emission status of magnesium smelting industry, and pointed out the ways of energy saving and emission reduction in magnesium smelting under the background of carbon neutralization from three aspects: calcining furnace, reduction furnace and new magnesium smelting technology. This paper promotes the development and application of new calcining furnace using heating ways of HTAC technology, oxygen-enriched combustion technology, etc., microwave, induction, plasma heating reduction furnaces and other new equipment, and develops new technologies with high efficiency, energy saving and carbon reduction, such as short-process green magnesium smelting technology, continuous smelting technology and alumino-thermic magnesium smelting technology, so as to finally achieve the goal of carbon neutrality and sustainable development of magnesium industry.