漂白粉浸出贵州难浸金矿的正交试验研究  

Orthogonal test on the leaching of a refractory gold ore in Guizhou province by bleaching powder

作　　者：黄成戈 唐道文[1] 蔡鹏源 熊华康 黄彪 HUANG Chengge;TANG Daowen;CAI Pengyuan;XIONG Huakang;HUANG Biao(College of Materials and Metallurgy,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学材料与冶金学院,贵阳550025

出　　处：《有色金属科学与工程》2020年第2期97-103,共7页Nonferrous Metals Science and Engineering

基　　金：贵州省科技计划资助项目(黔科合基础[2019]1412号);贵州大学大学生创新创业训练计划资助项目(贵大2018创字2018520041)。

摘　　要：通过正交试验研究了漂白粉用量、浸出时间、液固比、碱耗量等4个因素在3个水平条件下的正交试验结果,确定了较优浸出条件为40 g原矿在25℃条件下,25 g漂白粉和9 g氢氧化钠,液固比8∶1浸出5 h为较优浸出条件,金的浸出率可达65.53%。试验结果表明,漂白粉对贵州难浸金矿有一定的浸出效果,且浸出成本低,值得进一步研究。Orthogonal tests were conducted to study four factors:leaching agent dosage,leaching time,liquid-solid ratio and alkali consumption at three levels.By analyzing the test results,we determined the optimal leaching conditions.It was when 40 g gold ores was soak in the mix of 25 g bleach and 9 g sodium hydroxide for 5 hours with a liquid-solid ratio of 8∶1 at the temperature of 25℃that the best leaching effect was obtained.Under that condition,the leaching rate could reach 65.53%.The tests results indicated that the leaching of refractory gold ores by bleaching powder,to some extent,was effective and cost little,deserving further studies.

关 键 词：氯盐法 漂白粉 贵州难浸金矿 浸出 正交试验 

分 类 号：TF111.3[冶金工程—冶金物理化学] TF831