期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
从含砷钼矿浸出液中脱砷 被引量:7
1
作者 饶金元 朱云 《中国钼业》 2008年第5期22-24,共3页
采用砷酸铵镁沉淀法对含砷钼矿的浸出液进行了脱砷研究。理论分析得到脱砷过程中浸出液pH=10、浓度为0.1 mol/L时,溶液中砷浓度为3.2×10-8mol/L。试验研究了pH值大小、NH4Cl、MgCl2用量对浸出液脱砷率、钼入渣率以及钼砷比(Mo/As)... 采用砷酸铵镁沉淀法对含砷钼矿的浸出液进行了脱砷研究。理论分析得到脱砷过程中浸出液pH=10、浓度为0.1 mol/L时,溶液中砷浓度为3.2×10-8mol/L。试验研究了pH值大小、NH4Cl、MgCl2用量对浸出液脱砷率、钼入渣率以及钼砷比(Mo/As)的影响。找到了脱砷的最佳试验条件,在该条件下砷的脱除率可达到99.71%;钼入渣率可降至2.36%;Mo/As可达8 697.82,实现了含砷浸出液中砷的脱除。 展开更多
关键词 含砷钼矿 净化除 酸铵镁
下载PDF
秘鲁含砷铜钼矿高效浮选试验研究 被引量:3
2
作者 曹占芳 钟宏 +2 位作者 刘广义 王帅 夏柳荫 《稀有金属与硬质合金》 CAS CSCD 北大核心 2012年第3期1-4,12,共5页
对秘鲁某含砷铜钼矿进行浮选性能研究。结果表明,以改性硫脲Mac-12为捕收剂、AH-1为砷矿物抑制剂,闭路循环浮选流程可得到含铜26.65%、钼0.637%、砷0.348%的合格铜精矿产品,其铜、钼、砷的回收率分别达到了88.15%、85.77%、33.80%。
关键词 钼矿 浮选 捕收剂 抑制剂
下载PDF
Kinetics study of leaching arsenic from Ni-Mo ore roasting in dust mixture of hydrochloric and sulfuric acids
3
作者 侯晓川 杨润德 +2 位作者 李贺 曾理 肖连生 《Journal of Central South University》 SCIE EI CAS 2014年第6期2176-2183,共8页
The kinetics of leaching arsenic from Ni-Mo ore roasting dust was investigated. The effects including leaching temperature, particle size of the smelter dust, stirring speed, the coefficient β(the molar ratio of sod... The kinetics of leaching arsenic from Ni-Mo ore roasting dust was investigated. The effects including leaching temperature, particle size of the smelter dust, stirring speed, the coefficient β(the molar ratio of sodium chlorate to arsenic in the smelter dust) and the initial H+ concentration on leaching arsenic were studied. The results indicate that the leaching of arsenic increases sharply with the decrease of particle size. The orders of reaction with respect to H+ concentration and particle size are determinted to be 1.136 and 1.806, respectively. The leaching of arsenic reaches 99% under experimental conditions, the apparent activation energy is determined to be 11.157 kJ/mol, which is consistent with the values of activation energy for diffusion model The kinetics equation of leaching arsenic from the roasting dust could be expressed by a semi-empirical equation as 1-2/3η (1 -η)^2/3 = k0(c[H+])^1.136ro^-1.806 exp[(-11157 /RT)t]. 展开更多
关键词 Ni-Mo ore roasting dust ARSENIC leaching kinetics
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部