铅锌原矿石骨料混凝土对γ射线的屏蔽性能试验研究

用湖南省常宁县水口山铅锌矿出产的铅锌原矿石制备了混凝土粗骨料,按混凝土粗骨料总质量的20%、40%、60%、80%、100%掺入卵石骨料中,制备了铅锌原矿石骨料混凝土.试验表明铅锌原矿石骨料混凝土拌合物的坍落度随原矿石骨料掺入比例的增加而降低,比例超过60%时,坍落度降低明显.混凝土抗压强度随原矿石骨料掺入比例的增加而降低.原矿石骨料掺入比例越高,混凝土对γ射线的吸收系数μ越大,对γ射线的屏蔽能力越好.

甘肃省某铅锌原矿X荧光及化学法研究对比分析

为了充分掌握甘肃省某铅锌矿中各金属成分及其含量,利用X射线荧光分析仪进行光谱定性分析,确定了原矿中各种元素的成分及其含量,光谱分析元素及其化合物含量大于90%以上。通过化学法多元素分析,对原矿中的各元素进行定量分析。通过对比两种检测分析结果,分析实验室采用不同方法对铅锌原矿中元素分析的准确性及吻合度,以提高铅锌原矿分析效率。

富氧侧吹炉处理铅锌氧化原矿工艺的设计研究

介绍了富氧侧吹炉处理铅锌氧化原矿的生产工艺,在高温熔炼下,铅锌氧化原矿熔化分解,再保持炉内强还原气氛,使铅锌金属挥发进入烟尘,送下一步浸出处理。这种直接处理氧化原矿的工艺,相比原来先选矿得到精矿再送冶炼的工艺,缩短了工艺流程,提高了金属回收率。

Occurrence of lead and silver minerals and their interaction with xanthate in slurry of zinc electrolysis anode slime

The background pulp potential of zinc anode slime,and its influence on the occurrence of lead,silver and xanthate,were investigated with thermodynamic method.The thermodynamic conclusion and XRD analysis pointed out that in zinc anode slime,the thermodynamically stable compound of xanthate is dixanthogen,anglesite is the only mineral of lead,and kerargyrite is one of silver minerals occurring.Microflotation tests on single minerals of anglesite and kerargyrite in sulfuric acid solution by amyl dixanthogen indicated that dixanthogen has a much stronger collecting ability to kerargyrite than to anglesite.Molecular dynamic simulation indicated that amyl dixanthogen can only be adsorbed on the surface of kerargyrite in the presence of SO42-.The FTIR tests also verified the selective adsorption of amyl dixanthogen on the surface of kerargyrite in the presence of SO42-.