【摘 要】
：
本文就以泡沫塑料吸附、原子吸收法测定铜铅阳极泥及贵铅中的金进行了研究,试验中发现试料里的大量杂质成份使回收降低。经分析认为是铜、银、锑、锡等成份同时被吸附,与硫脲
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本文就以泡沫塑料吸附、原子吸收法测定铜铅阳极泥及贵铅中的金进行了研究,试验中发现试料里的大量杂质成份使回收降低。经分析认为是铜、银、锑、锡等成份同时被吸附,与硫脲形成PK<6的阴离子络合物,从而降低硫脲浓度,影响金的解脱。采取加大硫脲浓度,适当控制称样量等措施,可将回收率提高到97%左右。此外对吸附解脱原理和条件进行了讨论。
In this paper, foam plastic adsorption, atomic absorption spectrophotometric determination of copper and lead anode slime and gold in the lead was studied, the test found that a large number of impurities in the sample to reduce recovery. It is considered that the composition of copper, silver, antimony and tin is adsorbed at the same time, forming an anion complex with PK <6 with thiourea, thereby reducing the concentration of thiourea and affecting the release of gold. Take to increase the concentration of thiourea, the appropriate control of sample weight and other measures, the recovery rate can be increased to about 97%. In addition, the principle and condition of adsorption and desorption are discussed.
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