文献类型：期刊文献

中文题名：微波强化焙烧氧化锌烟尘提铟工艺优化研究

英文题名：Optimization Extraction of Indium by Microwave Enhanced Roasting Process from Zinc Oxide Dust

作者：常军 张利波 彭金辉 王万坤

第一作者：常军

机构：[1]铜仁学院材料与化学工程学院;[2]微波能工程应用及装备技术国家地方联合工程实验室;[3]贵州理工学院材料与冶金工程学院

第一机构：铜仁学院材料与化学工程学院,贵州铜仁554300

年份：2018

卷号：0

期号：3

起止页码：39-44

中文期刊名：有色金属：冶炼部分

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：国家自然科学基金资助项目(51404081);云南省科技领军人才培养计划项目(2013HA002)

语种：中文

中文关键词：氧化锌烟尘;微波硫酸化焙烧;铟浸出;响应曲面法;优化

外文关键词：zinc oxide dust; microwave sulfate roasting; indium leaching; response surface methodology; optimization

摘要：以锌冶炼过程产生的氧化锌烟尘为原料,采用微波硫酸化焙烧—水浸工艺提取铟。采用响应曲面法(RSM)对焙烧过程进行优化,以铟的浸出率为响应指标,选取焙烧温度、酸矿比、焙烧时间为考察因素,采用Box-Behnken Design(BBD)设计方案以三因素三水平设计试验,得出最优化的焙烧工艺条件,并获得拟合度高的二阶多项式模型。结果表明,微波硫酸焙烧氧化锌烟尘的最佳工艺条件为:焙烧温度208℃、酸矿比0.5(mL/g)、焙烧时间93min;在最佳焙烧条件下,铟浸出率模型预测值为92.89%,试验真实值为92.78%,模型可用于预测微波硫酸化焙烧氧化锌烟尘提铟的工艺。
Indium was leached from refractory zinc oxide flue dust （ZOFD） by microwave sulfating roasting followed by water leaching. Response Surface Methodology （RSM） was applied to optimize roasting process. The optimum process parameters and two order polynomial equation models with high fitting degree were obtained by three-factor at three-level test designed by Box-Behnken Design （BBD） applying indium leaching rate as response value, and roasting temperature, ratio of acid to ZOFD, and roasting time as independent factors. The results indicate that the theoretical indium leaching rate accords with model predicts and experimental value is 92.89% and 92.78% respectively under the optimum conditions including roasting temperature of 208 ℃, ratio of acid to ZOFD of 0. 5 （mL/g）, roasting and duration of 93 min. This model can be used to predict indium leaching from zinc oxide dust by microwave roasting with sulfuric acid.