赵景富.RKEF工艺处理缅甸镍红土矿[J].有色金属(冶炼部分),2013(1):8-10.
RKEF工艺处理缅甸镍红土矿
Treatment for Myanmar Nickel Laterite with RKEF Process
投稿时间:2012-07-18  修订日期:2012-07-25
DOI:doi:10.3969/j.issn.1007-7545.2013.01.003
中文关键词:  镍红土矿  干燥  还原焙烧  镍铁合金  制粒  回转窑  电炉
英文关键词:nickel laterite  drying  reduction roasting  ferronickel alloy  pelletizing  rotary kiln  electric furnace
基金项目:
  
作者单位
赵景富 沈阳有色金属研究院
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中文摘要:
      介绍了采用回转窑—电炉法(RKEF)处理缅甸达贡山镍红土矿生产镍铁的中试试验过程,得到了下述最佳工艺参数:干燥后原矿含水20%~22%、回转窑预还原温度900 ℃、还原剂煤的配入量7%、镍品位19%,烟尘制粒时湿矿配入量为烟尘的25%、尘球含水30%,电炉熔炼时放渣温度1 550~1 600 ℃、镍铁合金放出温度1 450~1500 ℃。
英文摘要:
      The pilot plant test on ferronickel alloy production from Myanmar Dagon Hill nickel laterite by rotary kiln-electric furnace smelting process (RKEF) was introduced. The optimum process parameters include moisture of 20%~22% in dried ore, pre-reduction temperature of 900 ℃, reductant dosage of 7%, nickel grade in ferronickel alloy of 19%; 25% of dust as dosage of wet laterite, the moisture of dustball of 30% in palletizing process, slag and ferronickel alloy discharging temperature in electric furnace smelting process of 1 550~1 600 ℃ and 1 450~1500 ℃, respectively.
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