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试样用碱性混合熔剂熔融，稀盐酸浸取酸化定容。分取部分试液，通过对测定条件优化及控制分析时各元素的
酸度，分别用硅钼蓝光度法测定Si，铋磷钼蓝光度法测定P；以三乙醇胺掩蔽Fe、Al等干扰元素后，在pH值≥12的氢氧化
钾缓冲体系中，以钙黄绿素混合指示剂指示滴定终点，用EGTA滴定法分别测定Ca及Ca、Ba合量；强碱沉淀分离氟盐置
换 EDTA 滴定法测定 Al，实现了同一母液 Si、P、Ca、...
Leaching Gold Using Oxidation Products of Elemental Sulfur in Ca(OH)2 Solution Under Oxygen Pressure
gold leaching alkaline solution oxygen pressure
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2009/11/16
A gold leaching process by using in situ oxidation products of added elemental sulfur in Ca(OH)2 solution was investigated. A gold concentrate containing 45 g/t Au was tested and 85%~87% of gold were ...