CAJ | 학술논문

贵州某铜尾矿-200目含量为40．17%,主要金属矿物有黄铜矿、黄铁矿、磁黄铁矿、斑铜矿,并伴生有少量的金、银。黄铜矿与黄铁矿、磁黄铁矿等共生关系密切,呈细粒、微细粒不均匀嵌布,部分粒度极细,难以单体解离；金主要为裸露金和黄铜矿包裹金。为了高效开发利用该二次资源,进行了铜金综合浮选回收试验。结果表明,在磨矿细度为-200目占80%的情况下采用1粗2精2扫、精矿2再磨至-325目占85%后2次精选、中矿顺序返回流程处理该试样,最终获得了铜、金、银品位分别为13．05%、18．75 g/t、229．62 g/t,铜、金、银回收率分别为58．70%、56．66%、43．72%的铜金精矿。
귀주모동미광-200목함량위40．17%,주요금속광물유황동광、황철광、자황철광、반동광,병반생유소량적금、은。황동광여황철광、자황철광등공생관계밀절,정세립、미세립불균균감포,부분립도겁세,난이단체해리；금주요위라로금화황동광포과금。위료고효개발이용해이차자원,진행료동금종합부선회수시험。결과표명,재마광세도위-200목점80%적정황하채용1조2정2소、정광2재마지-325목점85%후2차정선、중광순서반회류정처리해시양,최종획득료동、금、은품위분별위13．05%、18．75 g/t、229．62 g/t,동、금、은회수솔분별위58．70%、56．66%、43．72%적동금정광。
For a copper tailing in Guizhou with fineness of 40. 17% passing 200 mesh,its valuable minerals are mainly chalcopyrite,pyrite,pyrrhotite and bornite,with a small amount of gold and silver associated. Chalcopyrite,closely associated with pyrite,pyrrhotite,exists in fine or micro-fine form,some of which are too fine to be liberated. Gold mainly exists in form of natural gold or enclosed by chalcopyrite. In order to high-efficiently develop and utilize the secondary resources,the experiment on recovery of copper-gold is carried out. The results show that,at the grinding fineness of 80% passing 200 mesh,through the processes of one roughing-two cleanings-two scavengings,concentrate 2 regrounded to 85% passing 325 mesh and then through two cleanings, and middlings back to the flow-sheet in order, Cu-Ag concentrate with copper, gold, silver grade of 13. 05%,18. 75 g/t,229. 62 g/t,and recovery of 58. 70%,56. 66%,43. 72% is achieved respectively.