Preparation of chemical manganese dioxide from low-grade rhodochrosite ore

• 作 者: ZHAO Jing XU Longjun XIE Chao
• 机 构: StateKeyLaboratoryofCoalMineDisasterDynamicsandControlChongqingUniversity,SchoolofEnvironmentalProte
• 出 处: 中国地球化学学报：英文版
• 发表日期: 2013年4期
• 关键词: 化学二氧化锰 菱锰矿 低品位 制备 X-射线衍射 H2SO4 锰回收率 MnO2 chemical manganese dioxide low-grade r
• 基金项目: Foundation by the Bureau of Land Resources and Housing Management of Chongqing(Scientific & Technologic Program in 2011)

The preparation of chemical manganese dioxide(CMD) from low-grade rhodochrosite ore(LGRO) in Xiushan,Chongqing,was studied and improved,including leaching with sulfuric acid,purifying,crystallizing and decomposing of MnCO3,and refining of primary MnO2.The