高铁低铝煤矸石酸浸除铁及其废液利用的研究  

Research on the iron removal from coal gangue of high iron and low aluminum by acid leaching and the utilization of waste liquid

作　　者：师垒垒[1] 夏举佩[1] 张召述[1] 

机构地区：[1]昆明理工大学化学工程学院,云南昆明650500

出　　处：《化学研究与应用》2013年第6期916-920,共5页Chemical Research and Application

摘　　要：研究以六盘水盘县某矿区煤矸石为原料,采用单因素试验和正交试验的方法,研究了酸浸法除铁的工艺。通过对酸浓度、酸浸温度、酸浸时间、液固比四个影响因素的考察,得到各因素对酸浸除铁的影响规律。通过正交试验,确定了除铁的最佳工艺条件为:酸浓度15%、酸浸温度45℃、酸浸时间4h、液固比4:1,在此条件下的除铁率为90.3%。并用酸浸液制备了符合国家相关标准的氧化铁红产品。This research use coal gangue from Liupanshui panxian as raw materials,adopt single factor experiment and orthogonal experiment, made a study of the craft of acid leaching method for deironing. By investigating acid concentration, acid dipping tem- perature, acid dipping time and liquid-solid ratio these four factors, the influence of various factors on acid leaching method for dei- toning was found out. Through orthogonal experiment,confirmed the best craft conditions for deironing are 15% acid concentration, 45℃ acid dipping temperature,4h acid dipping time and 4：1 liquid-solid ratio, the ratio of deironing under these conditions is 90. 3% ,prepared iron oxide red product by pickle liquor as well. The product meet national relevant standards.

关 键 词：煤矸石 酸浸 除铁 氧化铁红 

分 类 号：O614.811[理学—无机化学]