Research, development and application of compound-vertical-retort technology for magnesium production  

作　　者：Rongbin Li Shaojun Zhang Peixu Yang Jinhui Liu Fengqin Liu 

机构地区：[1]School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China [2]School of Material Science and Engineering,Zhengzhou University,Zhengzhou,Henan 450001,China

出　　处：《Journal of Magnesium and Alloys》2023年第12期4724-4736,共13页镁合金学报（英文）

基　　金：the financial support from the Zhengzhou Collaborative Innovation Major Funding (18XTZX12010);National Key Research and Development Project (2016YFB0301101);Baosteel Metals Co.,Ltd.

摘　　要：This paper comprehensively introduces a new magnesium production technology the compound-vertical-retort technology, involving in the related fundamental researches, core equipment development, working flow, and technical characteristics. Scale-up test and an annual1200-ton-magnesium demonstration-level test was conducted to confirm the rationality, reliability, and advancement of the equipment, system and process design. It is indicated that the new technology solved a series of problems of traditional silicothermic process including adhesion and glaze, short life of retort, low efficiency, high impurity of crystallized magnesium, large heat losses, and poor working environment,making a great technological breakthrough in this field. Representatively, the new well-designed ceramic-lined steel retort serves 2~3 times in life than the normal retorts. The magnesium yield per retort is improved 4~5 times, with purity of >99.8%. The energy consumption in reduction stage is reduced by more than 20%. The mechanical production is fully realized and operating environment is significantly improved.

关 键 词：Silicothermic process MAGNESIUM Compound retort Vertical retort MECHANIZATION 

分 类 号：TG146.22[一般工业技术—材料科学与工程]