论文部分内容阅读
对于主要与黄铁矿等硫化物共生的含金石英脉金矿石,通常易选易浸,共浮选精矿氰化浸出回收率可达90～96％。然而对于含砷、锑、碳等物质的金矿石或金粒微细的金矿石,采用常规的全泥氰化或采用浮选精矿氰化浸出,甚至浸渣细磨再浸金的回收率都不可能显著提高。原因或者是砷、锑、碳等物质有害于金的氰化浸出,或者是由于金粒很细,采用多段磨矿方法已不可能使它们解离或暴露,从而氰化物不能与其发生作用所
For gold-bearing quartz vein gold ore symbiotic with pyrite and other sulfides, it is usually easy to pickle. The recovery rate of cyanidation leaching of flotation concentrates can reach 90-96%. However, for the gold ore containing fine particles of arsenic, antimony, carbon and the like or the gold fine gold ore, the conventional recovery rate of all muddy cyanidation or cyanidation using flotation concentrates is even higher Impossible to significantly improve. The reason is that arsenic, antimony, carbon and other substances harmful to gold cyanide leaching, or because gold is very fine, using multi-section grinding method has been impossible to dissociate or expose them, so cyanide can not interact with it