锌焙砂浸出制备铁酸锌研究

摘要

本文以含锌53.35％、含铁13.51％及铁酸锌13.97％的锌焙砂为原料,在对锌焙砂粒度分析、X-荧光多元素半定量分析、XRD分析及锌铁物相分析基础上,采用硫酸做浸出剂,研究始酸浓度、液固比、搅拌速度、浸出温度、浸出时间等因素对浸出渣物性的影响.结果表明,获取高含量ZnFe2O4浸出产品的试验条件为:始酸浓度100 g/L、液固比8∶1、搅拌速度400 r/min、浸出温度75℃、浸出时间120 min.%In this paper,zinc calcine with 53.35％ Zn,13.51％ Fe and 13.97％ zinc ferrite as raw materials was studied by the analysis of granularity,X-ray fluorescence multi-element semi-quantitative,XRD and zinc iron phase.The influence of sulfuric acid concentration,solid-liquid ratio,stirring speed,leaching temperature and leaching time was studied on leaching residue properties.The results show that the leaching conditions obtained high content ZnFe2O4 is initial acid concentration100g/L,liquid-solid ratio 8:1,stirring speed 400rpm,leaching temperature 75 ℃ and leaching time 120min.