CAJ | 학술논문

国内某难处理金矿金品位为14.80×10-6，含有0.47%的有机碳，95%以上的金为金属硫化物包裹金，常规氰化浸出率仅有21.89%。采用酸性热压-氰化工艺，研究矿浆浓度、时间、温度、氧分压和转速条件等因素对金氰化浸出率的影响。结果表明：采用热压预氧化处理金矿石能有效打开金包裹，硫氧化率＞98%，预处理后金的氰化浸出率＞97%。
국내모난처리금광금품위위14.80×10-6，함유0.47%적유궤탄，95%이상적금위금속류화물포과금，상규청화침출솔부유21.89%。채용산성열압-청화공예，연구광장농도、시간、온도、양분압화전속조건등인소대금청화침출솔적영향。결과표명：채용열압예양화처리금광석능유효타개금포과，류양화솔＞98%，예처리후금적청화침출솔＞97%。
The samples used is a typical refractory gold ore,which containing 14.80 ×10-6 Au and 0.47%organic carbon,and over 95% gold is of sulfide-inclusion type,and traditional cyanidation leaching rate of gold is only 21.89%.With acid hot-pressure oxidation pretreatment,the influence of pulp density,time,temperature,oxygen partial pressure,rotational speed on cyanidation extraction rate of Au was researched.The results showed that sulfur oxidation rate was more than 98%and the leaching rate of gold was more than 97%.