中南大学学报（自然科学版）2017，Vol.48Issue(7)：1704-1711,8.DOI:10.11817/j.issn.1672-7207.2017.07.003
含锌粉尘团块脱锌行为研究
Research on dezincification of zinc-bearing dusts composite briquettes
摘要
Abstract
Based on the orthogonal experiment,the effects of roasting temperature,molar ratio of carbon to oxygen,mass fraction of water,binary basicity and CO2 volume fraction on the dezincification of zinc-bearing dusts briquettes were studied.The predominancearea of Zn and Fe were calculated by Factsage.The reduction behavior of Zn and Fe was analyzed by scanning electron microscope (SEM) and X-Ray Diffraction (XRD).The results show that roasting temperature is the most important factor of the dezincification,and the higher temperature,the higher dezincification rate.At 1 200 ℃,Zn and Fe can be reduced at the same time.The optimal parameters are roasting temperature of 1 200 ℃,molar ratio of C to O of 1.0,mass fraction of water of 10％,binary basicity of 2.0 and CO2 volume fraction of 65％,and under this condition the dezincification ratio reaches 82.66％.关键词
含锌粉尘/脱锌/正交实验/还原/热力学Key words
zinc-bearing dusts/dezincification/orthogonal experiment/reduction/thermodymanics分类
矿业与冶金引用本文复制引用
陈子罗,张建良,刘征建,袁骧,王飞,刘依然,高斌..含锌粉尘团块脱锌行为研究[J].中南大学学报（自然科学版）,2017,48(7):1704-1711,8.基金项目
国家自然科学基金资助项目(U1260202) (Project(U1260202) supported by the National Natural Science Foundation of China) （U1260202）
