| 铅锌精矿中游离自然银和游离硫化银的测定 |
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| 引用本文： | 林善良.铅锌精矿中游离自然银和游离硫化银的测定[J].广东有色金属学报,1991(2). |
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| 作者姓名： | 林善良 |
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| 作者单位： | 广州有色金属研究院 |
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| 摘 要： | 拟定了分离测定铅锌精矿中游离硫化银和游离自然银的方法。用硫酸-硫脲-硫代乙醇酸溶液选择溶解硫化银;用硫酸-硫脲-硫酸高铁铵溶液选择溶解自然银。方铅矿、闪锌矿和一定量的黄铜矿、黄铁矿和毒砂存在不影响浸取率。
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| 关 键 词： | 物相分析 铅锌精矿 硫化银 银 |
DETERMINATION OF FREE NATIVE SILVER AND FREE SILVER SULPHIDE IN LEAD-ZINC CONCENTRATE |
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| LIN Shanliang.DETERMINATION OF FREE NATIVE SILVER AND FREE SILVER SULPHIDE IN LEAD-ZINC CONCENTRATE[J].Journal of Guangdong Non-Ferrous Metals,1991(2). |
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| Authors: | LIN Shanliang |
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| Affiliation: | Guangzhou Research Institute of Non-Ferrous Metals |
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| Abstract: | A method is proposed to determine free native silver and free silver sulphide in lead-zinc concentrate. A mixture of sulphuric acid-thiourea-thioglycollic acid is used as selective solvent for free silver sulphide and sulphuric acid-thiourea-ferric sulphate for free native silver. The existence of galena, sphalerite, certain amount of chalcopyrite and arsenopyrite does not influence the leaching rate. |
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| Keywords: | chemical phase analysis lead-zinc concentrate silver sulphide silver |
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