摘要
本研究先以水浸实现砷碱渣中的砷锑分离,再对水浸渣进行盐酸浸出,得到了可作为工业原料氯化锑溶液。研究结果表明,在液固比为6∶1,温度40℃,浸出时间40 m in的条件下,可使水浸过程中锑的浸出率低于3%,砷的浸出率达到99%;盐酸浸出中,控制酸浓度为1∶1,液固比10∶1,温度60℃,浸出时间30 m in,能使锑的浸出率达到88%以上。经过水浸和盐酸浸出,锑的直接回收率为85.36%。
Arsenic-alkali residue is leached by water firstly in order to separate the arsenic and antimony, and then the liquid leached residue is leached by hydrochloric acid,this solution containing SbCl3 is very useful in industry. Under the optimum conditions such as ratio of liquid to solid being 6, leaching temperature being 40℃ and lasting time being 40 min,the leaching rate of arsenic is above 99% and leaching rate of antimony is blow 3%. During the progress of hydrochloric leaching,controlling the acid concentration being 1：1 ,ratio of liquid of solid being 10： 1 ,temperature being 60℃ and time for 30 min,the leaching rate of antimony exceeds 88%. After the 2 procress of leaching.the direct recovery rate of antimony is 85.36%.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2006年第1期64-67,共4页
Techniques and Equipment for Environmental Pollution Control
基金
湖南省环保局科技计划项目(200207)
关键词
呻碱渣
水浸渣
浸出
锑酸钠
三氧化二锑
arsenic-alkali residue
liquid leached residue
leaching
NaSb （OH） 6
Sb2O3
