摘要
Abstract
The technical flowsheet of selective copper flotation-cyanide leaching of gold of the arsenicand sulfur concentrate-cyanide tailing to be adopted for the recovery of gold and copper in an ore overseas was introduced. The ore contains 3.40g/tAu,16. 9g/tAg,l.07%Cu,l.16% As and 5.38% TS,the gold and copper minerals of which are finelydisseminated and complicatedly embedded and the gold distribution in which is scattered, most of which are wrapped by sulfide and gangues. Meanwhile, the content of arsenic is relatively high. So it belongs to a compli-cated and refractory gold-copper ore containing high arsenic. The combined inhibitor of lime and sodium sulfite was adopted to suppress arsenic, which can get the qualified gold-copper concentrate that can be directly sold. When hot-press pre-oxidation was adopted to recover gold in the sulfur-arsenic and cyanide leaching was adopted to recov-er gold in the tailings. The comprehensive recovery of copper and gold was reached 83. 47% and 87. 20% respec-tively.关键词
金铜矿/优先浮选/氰化/砷/热压预氧化Key words
Gold and copper ore/Selectiveflotation,Cyanidation,Arsenic,Hot-press pre-oxidation分类
矿业与冶金
