钼精矿氨加压浸出钼铼分离试验研究
|
摘要
通过对某企业自产钼精矿进行氨加压浸出依赖性参数试验研究和分析,得出了优化条件。综合试验表明,钼精矿经氨加压浸出后,钼、铼、铜的浸出率分别可达96%、98%和60%以上。氨浸液经酸沉后,钼酸铵结晶率可达98%以上。溶剂萃取试验表明,含铼滤液通过两段萃取和反萃取后,铜、钼、铼将得到彻底分离,铼的萃取率可达98%以上,经二次反萃之后,溶液中铼可富集到20 g/L以上,为铼的进一步提纯创造了有利条件。
Based on the experimental study and analysis of the dependent parameters of ammonia pressurization leaching for molybdenum concentrate produced by an enterprise,the optimum conditions are obtained. The comprehensive test shows that the leaching rate of molybdenum,rhenium and copper can reach above 96%,98% and60%,respectively. The crystallization rate of ammonium molybdate can reach above 98% after the ammonia leaching solution is settled by acid. The solvent extraction test showed that after the rhenium filtrate was extracted by two-stage extraction and reverse extraction,copper,molybdenum and rhenium were completely separated,and the extraction rate of rhenium could reach over 98%. After the second reverse extraction,rhenium could be enriched to more than 20 g/L in the solution,creating favorable conditions for further purification of rhenium.
Based on the experimental study and analysis of the dependent parameters of ammonia pressurization leaching for molybdenum concentrate produced by an enterprise,the optimum conditions are obtained. The comprehensive test shows that the leaching rate of molybdenum,rhenium and copper can reach above 96%,98% and60%,respectively. The crystallization rate of ammonium molybdate can reach above 98% after the ammonia leaching solution is settled by acid. The solvent extraction test showed that after the rhenium filtrate was extracted by two-stage extraction and reverse extraction,copper,molybdenum and rhenium were completely separated,and the extraction rate of rhenium could reach over 98%. After the second reverse extraction,rhenium could be enriched to more than 20 g/L in the solution,creating favorable conditions for further purification of rhenium.
引文
[1]姚远,罗东卫,符新科,等.辉钼精矿焙烧工艺评述[J].中国有色冶金,2008(2):24-26.
[2]朱永安.钼精矿焙烧低浓度SO2烟气治理方案探讨[J].中国有色冶金,2006(2):48-50.
[3]张邦胜,蒋开喜,王海北,等.酸性加压氧化分解辉钼精矿的实验研究[J].稀有金属,2007,31(3):384-390.
[4]谢坚,王海北,张邦胜.辉钼精矿加压湿法冶金技术研究进展[J].金属矿山,2014(1):74-79.
[5]徐志峰,严康,李强,等.复杂硫化铜精矿加压浸出动力学[J].有色金属,2010(4):76-81.
[6]周小舟,曹佐英,肖连生.等.新型三叔胺萃取剂的合成及其萃取性能[J].中南大学学报,2017(3):5626-569.
[7]张子岩,间椿林.溶剂萃取法在钨湿法冶金中的应用[J].湿法冶金,2006(1):1-9.
[8]于世昆,伍艳辉.铼的分离提纯研究进展[J].中国钼业,2010,34(2):7-11.
[9]郭株辉,沈裕军,冯洁.从某铜矿伴生铼所低等品中提取高纯铼酸铵的技术研究[J].中国钼业,2015,39(4):31-35
[10]马高峰,雷宁,冯宝奇,等.钼酸铵生产废水中钼及铜的综合回收[J].中国钼业,2015,39(3):38-40.
[2]朱永安.钼精矿焙烧低浓度SO2烟气治理方案探讨[J].中国有色冶金,2006(2):48-50.
[3]张邦胜,蒋开喜,王海北,等.酸性加压氧化分解辉钼精矿的实验研究[J].稀有金属,2007,31(3):384-390.
[4]谢坚,王海北,张邦胜.辉钼精矿加压湿法冶金技术研究进展[J].金属矿山,2014(1):74-79.
[5]徐志峰,严康,李强,等.复杂硫化铜精矿加压浸出动力学[J].有色金属,2010(4):76-81.
[6]周小舟,曹佐英,肖连生.等.新型三叔胺萃取剂的合成及其萃取性能[J].中南大学学报,2017(3):5626-569.
[7]张子岩,间椿林.溶剂萃取法在钨湿法冶金中的应用[J].湿法冶金,2006(1):1-9.
[8]于世昆,伍艳辉.铼的分离提纯研究进展[J].中国钼业,2010,34(2):7-11.
[9]郭株辉,沈裕军,冯洁.从某铜矿伴生铼所低等品中提取高纯铼酸铵的技术研究[J].中国钼业,2015,39(4):31-35
[10]马高峰,雷宁,冯宝奇,等.钼酸铵生产废水中钼及铜的综合回收[J].中国钼业,2015,39(3):38-40.