摘要
为了打破现有氰化生产中传统磨矿、分级及浸出工艺,达到提高磨矿效率、氰化回收率和降低生产能耗的目标,金翅岭金矿进行氰化磨矿浸出工艺的优化试验研究,通过对矿物进行一次性磨矿浸出试验与分段磨矿浸出试验对比发现,矿物一次性磨矿至合格细度-400目细度达到90%,浸出12 h时,氰化回收率可达到99.5%;分段磨矿分段浸出一次磨矿细度为-400目占75%,一次浸出时间为16 h,分级后+400目再磨细度为91%,浸出时间为12 h时,总回收率可达99.64%。分段磨矿浸出磨机节约能耗约15%,氰化回收率提高0.14%。
To break the traditional grinding,grading and leaching process in the existing production of the cyanide,and to achieve the goal of improving the grinding efficiency,cyanide recovery and reduce production energy consumption, the experimental research of cyanide grinding leaching process for the Jinchiling gold deposit was conducted.Through comparing the mineral one-time grinding leaching experiment and piecewise grinding leaching experiment,founding that mineral one-time grinding to qualified fineness （-400 mesh fineness up to 90% ）,leaching 12 h,cyanide recovery rate can reach 99.5%.Stage grinding sectional leaching time grinding fineness of -400 accounted for 75% ,an extraction time is 16 h,after the classification ＋400 regrinding fineness was 91%,the extraction time is 12 h,the total recovery rate up to 99.64%.Stage grinding leaching mill total energy saving is about 15% ,cyaniding recovery rate can be increased by 0.14% ,saving energy and improving the recovery rate from the perspective of stage grinding leaching is good.
出处
《黄金科学技术》
CSCD
2013年第5期140-144,共5页
Gold Science and Technology
关键词
氰化
磨矿浸出工艺
降低能耗
回收率
cyanide
grinding leaching process
save energy
recovery rate
