磷矿熔融还原工艺的优化研究  

Study on technological optimization of phosphate ores by smelting reduction

作　　者：胡彪[1] 李茜[1] 胡意[1] 金放[1] 吴元欣[1] 

机构地区：[1]绿色化工过程省部共建教育部重点实验室,湖北省新型反应器与绿色化学工艺重点实验室,武汉工程大学,湖北武汉430073

出　　处：《化工矿物与加工》2012年第12期1-3,46,共4页Industrial Minerals & Processing

基　　金：国家科技支撑计划项目(2007BAB08B10);教育部"矿物处理过程强化"创新团队资助项目(IRT0974);武汉工程大学研究生教育创新基金项目No.CX201116

摘　　要：用正交实验设计的方法研究了磷矿熔融还原的工艺条件,方差分析和极差分析结果表明,反应温度和时间对还原率影响比较显著,碳过剩系数和渣碱度对还原率有一定的影响,各个因素影响程度大小依次为反应温度、反应时间、碳过剩系数、渣碱度。优化得到的最佳工艺参数为:反应温度1500℃、反应时间60min、碳过剩系数2、渣碱度1.1,此条件下磷渣中磷还原率可达98.12%。The optimal process conditions of smelting reduction of phosphate ores are studied by the orthogonal experiment design method. The results of range analysis and variance analysis show that the influence of reaction temperature and reaction time on reduction rate is notable, the carbon excess coefficient and basicity have certain influence on reduction rate, and the effects on reduction rate are listed in the following decreasing order： reaction temperature, reaction time, carbon excess coefficient and basicity. The optimal technology parameters are as follows： reaction temperature 1500 C, reaction time 60 rain, carbon excess coefficient 2 and basicity 1.1. The reduction rate could be 98.12%.

关 键 词：磷矿 热法磷酸 熔融还原 正交实验 

分 类 号：TQ126.3[化学工程—无机化工]