首条年产20万t氧化锰矿流态化还原生产示范线在云南省文山州建成投产.研究表明,氧化锰矿流态化还原可以在500～700℃的较低温度下完成, 在此温度区间内,还原时间超过10 min情况下,还原温度对锰浸出率的影响很小.与传统技术相比,该生产示范线具有规模化、自动化技术优势,系统运行稳定可靠,产品质量和能耗指标先进,并且利用了当地丰富的低品位氧化锰矿资源,为当地经济发展做出了贡献.%The first demonstration plant of fluidizing reduction of pyrolusite with capacity of 200,000 t/a has been set up into production in Wenshan of Yunnan province.A study of thermodynamic and kinetic indicates that the reductions of manganese oxide ores can be completed at a relatively low temperature range of 500～700℃.The influence of temperature on leaching rate of manganese is neglectable if its reduction lasts more than 10 min.With advantages of high production capacity and automation over the conventional technologies, the production line will run smoothly and reliably to reach lead level both in product quality and energy consumption.The plant has contributed a lot to the local economy by utilizing the low-grade manganese ores in the area.
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