CAJ | 학술논문

某浸金尾砂粒度较细，－0．015 mm 占31．3％，硫含量为13．1％，金、银品位分别为0.74、11.4 g／t，硫主要以黄铁矿的形式存在，并受氰化物的强烈抑制。试样经自然晾晒后，以硫酸为 pH 调整剂、硫酸铜＋硫酸亚铁为活化剂、丁基黄药＋丁铵黑药为捕收剂进行浮选回收硫的试验。结果表明：试样无需磨矿，在条件试验确定的最佳药剂制度下，经4粗2精1精扫浮硫闭路流程处理，最终可获得产率为26．04％、硫品位40．03％、回收率79．57％的硫精矿，其中金、银品位分别为2．29 g／t、28．5 g／t，回收率分别为80．6％、65．1％，有效回收了尾砂中的硫，并在硫精矿中实现了金、银贵金属的伴随回收。
모침금미사립도교세，－0．015 mm 점31．3％，류함량위13．1％，금、은품위분별위0.74、11.4 g／t，류주요이황철광적형식존재，병수청화물적강렬억제。시양경자연량쇄후，이류산위 pH 조정제、류산동＋류산아철위활화제、정기황약＋정안흑약위포수제진행부선회수류적시험。결과표명：시양무수마광，재조건시험학정적최가약제제도하，경4조2정1정소부류폐로류정처리，최종가획득산솔위26．04％、류품위40．03％、회수솔79．57％적류정광，기중금、은품위분별위2．29 g／t、28．5 g／t，회수솔분별위80．6％、65．1％，유효회수료미사중적류，병재류정광중실현료금、은귀금속적반수회수。
Particle size distribution of a gold leaching tailing is fine, -0.015 mm accounted for 31.3%,sulfur content is 13.1%,gold,silver grade is 0.74 and 11.4 g/t,respectively,sulfur mainly exists in form of pyrite.Sulfur flotation recovery using sulfuric acid as pH adjusting agent,copper sulfate and ferrous sulfate as the activator,butyl xanthate and butyl ammonium aerofloat as collector was conduc-ted.Results showed that through four roughing two cleaning one scavenging process at the optimum rea-gent system without grinding,sulfur concentrate was obtained with yield rate of 26.04%,sulfur grade of 40.03%,recovery of 79.57% and gold and silver grade of 2.29 g/t and 28.5 g/t,gold and silver re-covery of 80.6% and 65.1%.Sulfur in the tailing was effectively recovered,and realized the precious metals gold and silver recovery in the sulphur concentrate.