主题：【求助】（已应助）锌精矿中锌的测定--应文河; 李德泉--冶金分析1993年 04期

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锌精矿中锌的测定

【英文篇名】 Determination of Zinc in Zinc Concentrates
【作者中文名】 应文河; 李德泉;
【作者英文名】 Ying Wenhe Li Dequan; （ Tianjin Mineral Resources Test Center; Ministry of Metallurgical Industry ）;
【作者单位】 冶金部天津地质矿产测试中心; 天津进出口商品检验局 天津;
【文献出处】 冶金分析, Metallurgical Analysis, 编辑部邮箱 1993年 04期 
期刊荣誉：中文核心期刊要目总览  ASPT来源刊  CJFD收录刊
【关键词】 锌; 滴定; 锌精矿;
【英文关键词】 Zinc; Titration; Zinc concentrates;
【摘要】 提出用氨水—氯化铵一次沉淀分离铁、铝等,以β-DTCPA掩蔽铜、镉、镍、钴、铅,EDTA络合滴定锌,然后用盐酸溶解氢氧化物沉淀,用原子吸收分光光度法测定吸附在氢氧化铁沉淀中的锌含量,从根本上克服了大量胶凝状氢氧化物沉淀对锌的吸附影响.经过大批量出口商检样品的测试考核,结果令人满意.
【英文摘要】 An investigation was made to develop a simple .rapid and accurate method for the determination of zinc in zinc concentrates. In this method,lead was not previously separated with sulphuic acid. Iron, aluminium, manganese and lead were precipitated by ammonia, ammonium chloride and ammonium persulphate. Copper, cadmium, nickel and cobalt in the solution were masked by the addition of (3 -di thiocarbaminopropionic acid. Zinc in the solution was titrated by EDTA with SXO as an indicator. Zinc absorbed in impur...


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