CAJ | 학술논문

提出一种处理复杂难处理金精矿的新工艺，主要包括还原固硫熔炼富集金和电解分离铅金两种主要工序。研究其中还原固硫熔炼富集金，分析熔炼温度、铁加入量、铅加入量以及熔炼时间等因素对金直收率的影响，确定最佳工艺条件如下：添加四氧化三铁、废旧铅酸蓄电池胶泥、氧化钙和焦炭的质量分数分别是金精矿质量的95%、86%、22%和10%，样品在1100℃下熔炼1 h后在1200℃保温30 min，金的直收率和总收率分别达到97.02%和98.53%，金得到有效富集，由原金精矿中金含量18.05 g/t提高到铅合金中金含量49.56 g/t，含量提高约1.73倍。
제출일충처리복잡난처리금정광적신공예，주요포괄환원고류용련부집금화전해분리연금량충주요공서。연구기중환원고류용련부집금，분석용련온도、철가입량、연가입량이급용련시간등인소대금직수솔적영향，학정최가공예조건여하：첨가사양화삼철、폐구연산축전지효니、양화개화초탄적질량분수분별시금정광질량적95%、86%、22%화10%，양품재1100℃하용련1 h후재1200℃보온30 min，금적직수솔화총수솔분별체도97.02%화98.53%，금득도유효부집，유원금정광중금함량18.05 g/t제고도연합금중금함량49.56 g/t，함량제고약1.73배。
A new technology composed of two main processes, namely, enriching gold by reducing sulfur-retention smelting and electrolysis to separate lead and gold, was proposed for the treatment of refractory gold concentrates. The processes of reducing sulfur-retention smelting were investigated. The effects of smelting temperature, iron addition amount, lead addition amount and smelting time on direct recovery rate of gold were analyzed. The results show that the optimum conditions are as follow:the addition amount of Fe3O4, lead-acid battery colloid sludge, CaO and metallurgical coke is 95%,86%,22% and 10% (mass fraction) of the amount of gold concentrates, respectively, and the sample was melted at 1100℃for 1 h and then at 1200℃for 30 min. Under the optimum conditions, the direct and total recovery ratios of gold are 97.02%and 98.53%, respectively, so gold is collected effectively. The gold content of 49.56 g/t in the lead alloy increases by about 1.73 times than that of 18.05 g/t in the gold concentrate.