黄金科学技术
黃金科學技術
황금과학기술
GOLD SCIENCE AND TECHNOLOGY
2014年
6期
82-86
,共5页
张德良%刘永国%唐乐%卫中领%邹忠%殷清
張德良%劉永國%唐樂%衛中領%鄒忠%慇清
장덕량%류영국%당악%위중령%추충%은청
工业纯氧%金回收率%浸出速率%含碳金精矿%多金属硫化矿
工業純氧%金迴收率%浸齣速率%含碳金精礦%多金屬硫化礦
공업순양%금회수솔%침출속솔%함탄금정광%다금속류화광
pure oxygen%leaching kinetics%gold recovery%gold concentrate containing carbon%polymetallic sulfide ore
鑫汇金矿矿石为多金属硫化矿,同时含有一定的碳,采用浮选—金精矿氰化—锌粉置换—金泥湿法冶炼工艺流程,由于精矿中杂质含量较高,加上碳的“劫金效应”,金浸出较为困难。为提高矿石金回收率,在前期小型试验的基础上,经过充分论证,从2013年7月开始,在氰化生产流程中进行了历时6个月的GOLDOXTM纯氧浸出工业试验研究。从工业试验前后主要生产指标对比来看,氰渣中金品位降低了0.20×10-6,每年可增加经济效益80.8万元。该项研究成果对同类性质的黄金矿山企业具有一定的借鉴意义,将对纯氧浸出工艺在我国黄金行业的应用起到良好的示范和推动作用。
鑫彙金礦礦石為多金屬硫化礦,同時含有一定的碳,採用浮選—金精礦氰化—鋅粉置換—金泥濕法冶煉工藝流程,由于精礦中雜質含量較高,加上碳的“劫金效應”,金浸齣較為睏難。為提高礦石金迴收率,在前期小型試驗的基礎上,經過充分論證,從2013年7月開始,在氰化生產流程中進行瞭歷時6箇月的GOLDOXTM純氧浸齣工業試驗研究。從工業試驗前後主要生產指標對比來看,氰渣中金品位降低瞭0.20×10-6,每年可增加經濟效益80.8萬元。該項研究成果對同類性質的黃金礦山企業具有一定的藉鑒意義,將對純氧浸齣工藝在我國黃金行業的應用起到良好的示範和推動作用。
흠회금광광석위다금속류화광,동시함유일정적탄,채용부선—금정광청화—자분치환—금니습법야련공예류정,유우정광중잡질함량교고,가상탄적“겁금효응”,금침출교위곤난。위제고광석금회수솔,재전기소형시험적기출상,경과충분론증,종2013년7월개시,재청화생산류정중진행료력시6개월적GOLDOXTM순양침출공업시험연구。종공업시험전후주요생산지표대비래간,청사중금품위강저료0.20×10-6,매년가증가경제효익80.8만원。해항연구성과대동류성질적황금광산기업구유일정적차감의의,장대순양침출공예재아국황금행업적응용기도량호적시범화추동작용。
The gold ore of Shandong Gold Mining(Xinhui) was refractory ore,which was containing polymetallic sulfides ore and a certain amount of carbon.The dressing and smelting process is floatation,gold concentrate cyanidation,zinc dust replacement and gold mud hydrometallurgical process,but gold leaching is difficult dued to the high content of impurities concentrate and carbon robbing effect.In order to improve gold recovery, GOLDOXTM hydrometallurgy process was studied by bench scale test and 6 month plant scale test was conducted since July,2013.It was shown the process promoted leaching kinetics and improved gold recovery.The residue gold grade reduced 0.20 g/t in average after pure oxygen was applied. It means operating profit increase 808 000 Yuan per year in the plant.This would not only provide a successful example of oxygen leaching process,but also promote the high effective oxygen application in the Chinese gold industry.