CAJ | 학술논문

根据高砷高硫难处理金精矿的工艺矿物学特征，提出了二段焙烧-加压酸浸联合预处理工艺，重点讨论了该工艺对砷、硫和铁脱除效果的影响。研究结果表明，难处理金精矿经一段焙烧后，在焙烧温度700℃、焙烧时间120 min条件下，再经二段焙烧，所得焙砂中As含量仅为0.51%，S含量为0.34%，并且经过加压酸浸后As、S和Fe的脱除率都在95%以上，达到了很好的效果。
근거고신고류난처리금정광적공예광물학특정，제출료이단배소-가압산침연합예처리공예，중점토론료해공예대신、류화철탈제효과적영향。연구결과표명，난처리금정광경일단배소후，재배소온도700℃、배소시간120 min조건하，재경이단배소，소득배사중As함량부위0.51%，S함량위0.34%，병차경과가압산침후As、S화Fe적탈제솔도재95%이상，체도료흔호적효과。
According to the mineralogical characteristics of refractory gold concentrate containing high arsenic and sulfur,we propose a sec-roasting pressure acid leaching combined pretreatment process,and focus on the impact of the process on the removal effect for arsenic,sulfur and iron.The results show that after a roasting of refractory gold concentrate,then by two stage roasting under the conditions of calcination temperature 700℃and roasting time 120 min,we obtain that As content is only 0.51%and S content is 0.34%in calcine.At the same time,the removal rate of As,S and Fe are more than 95%by pressure acid leaching,and achieve good results.