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很多科研人员在他们致力于改进金矿石的处理工艺时，经常谈到在氰化法提金过程中某些参数的最佳效果问题。根据操作条件和金矿石矿物成分的不同，他们获得的结果也是各种各样的。虽然加拿大的氰化厂中近年来提金工艺已得到明显改进，但仍在研究工艺的最佳化问题。为此，人们已进行过很多研究，以说明氰化提金工艺某些重要参数的作用，并为金的处理工厂研制出一种有效的药剂制度。本文介绍了包括用两种中等难浸矿石进行的实验室研究结果，并通过一种能说明“游离”氰化物浓度、溶解氧含量和硝酸铅加入量之间的相互关系，及其对金的溶解速率、金的浸出率和氰化物耗量之间的相互关系，以及对金的溶解速率、金的浸出率和氰化物耗量的影响进行了讨论。与工厂的生产指标相比，氰化物的耗量减少了1／2～3倍，而金的溶解速率提高了3倍。
Many researchers often talk about the best effect of certain parameters in the gold leaching process of cyanidation when they are devoted to improving the gold ore processing technology. Depending on the operating conditions and the composition of the gold ore minerals, the results they obtain are varied. Although the gold extraction process has been significantly improved in Canada’s cyanide plant in recent years, the optimization of the process is still under study. To this end, many studies have been conducted to illustrate the role of certain important parameters of the cyanidation gold extraction process and to develop an effective pharmaceutical system for gold processing plants. This paper presents the results of a laboratory study involving two medium refractory ores and an analysis of the relationship between “free” cyanide concentration, dissolved oxygen and lead nitrate, The relationship between dissolution rate, leaching rate of gold and cyanide consumption, as well as the effect of gold dissolution rate, gold leaching rate and cyanide consumption, are discussed. Cyanide consumption was reduced by a factor of two to three compared with the factory’s production target, while gold dissolution rate was tripled.