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用分子设计理论提出了一类新型浸金剂 ,它由丁二酮肟和某种氧化剂构成 ,具有无毒害和化学稳定性好的特点 ,实验结果表明 :1)丁二酮肟能与许多氧化剂尤其是高锰酸钾组合成高效浸金剂 ;2 )在丁二酮肟 -高锰酸钾浸出体系中 ,适宜的Ox/Lig(氧化剂与金络剂分子比 )比值范围为 0 .2 5～ 0 .50 ,最佳范围为 0 .30～0 .4 0 ;3)丁二酮肟 -高锰酸钾浸出体系的操作pH范围为 8～ 10 ;4 )与氰化物相比 ,丁二酮肟的浸出率与它相当但浸出速度明显快很多 ;5)从含丁二酮肟的浸出贵液中回收金既可采用炭吸附法也可采用锌置换法 图1,表 5,参 9
Based on the theory of molecular design, a new type of gold-leaching agent is proposed. It consists of dimethylglyoxime and some oxidant. It has the characteristics of non-toxicity and good chemical stability. The experimental results show that 1) dimethylglyoxime can react with many oxidants Especially the combination of potassium permanganate into high-efficiency gold-impregnating agent; 2) In the dimethylglyoxime-potassium permanganate leaching system, the suitable Ox / Lig ratio of oxidizing agent to gold complexing agent is 0.55 ~ 0 .50, the best range of 0.30 ~ 0. 4 0; 3) dimethylglyoxime - potassium permanganate leaching system operating pH range of 8 to 10; 4) compared with the cyanide, Ketoxime leaching rate and its equivalent but the leaching rate was significantly faster; 5) recovery of gold from the leaching solution containing dimethylglyoxime either carbon adsorption method can also be used zinc displacement method Figure 1, Table 5, reference 9