河南某硫酸烧渣制备氯化铁铵的试验研究  

Preparation of Ammonium Ferric Chloride from a Pyrite Cinder in Henan Province

作　　者：黄业豪 李志伟[1,2] 孙景敏 方栩泺[1,2] 豆金辉 HUANG Ye-hao;LI Zhi-wei;SUN Jing-min;FANG Xu-luo;DOU Jin-hui(Henan Provincial Rocks and Minerals Testing Center,Zhengzhou 450012,Henan,China;Henan Provincial Research Center for Mineral Processing and Biological Processing Engineering,Zhengzhou 450012,Henan,China)

机构地区：[1]河南省岩石矿物测试中心,河南郑州450012 [2]河南省矿物加工及生物选矿工程技术研究中心,河南郑州450012

出　　处：《矿冶工程》2020年第2期105-107,110,共4页Mining and Metallurgical Engineering

基　　金：河南省岩石矿物测试中心2017年度科技创新基金项目(豫地测[2017]54号-201704)。

摘　　要：以河南某硫酸烧渣为原料,采用盐酸浸出-浓缩净化-氯化铵诱导-冷却结晶工艺制备优级纯氯化铁铵晶体。实验所得最佳工艺条件为:盐酸溶液浓度40%、液固比8∶1、浸出温度85℃、浸出时间40 min、氯化铵过量系数0.9,此条件下原料中铁浸出率为91.43%,所制备的氯化铁铵纯度达到99.85%。A high-grade pure ammonium ferric chloride crystals was successfully prepared with a kind of pyrite cinder from Henan Province as the raw material by adopting a process consisting of hydrochloric acid leaching,concentration and purification,ammonium chloride induction and cooling crystallization.The optimal process conditions were obtained based on the experiment results,including hydrochloric acid concentration of 40%,the liquid-solid ratio at 8∶1,the leaching temperature at 85℃,the leaching time of 40 min and the excess coefficient of ammonium chloride at 0.9.It is shown that under the optimal conditions,the iron leaching rate from the raw materials is 91.43%,and the purity of the ferric ammonium chloride can reach 99.85%.

关 键 词：硫酸烧渣 浸出 结晶 氯化铁铵 

分 类 号：TF111[冶金工程—冶金物理化学]