矿冶工程
礦冶工程
광야공정
2014年
2期
46-49,53
,共5页
乔吉波%王少东%简胜%梁溢强
喬吉波%王少東%簡勝%樑溢彊
교길파%왕소동%간성%량일강
含硫铁铜矿%浮选%磁选%粗精矿再磨
含硫鐵銅礦%浮選%磁選%粗精礦再磨
함류철동광%부선%자선%조정광재마
sulfur-bearing iron-copper ore%flotation%magnetic separation%regrinding of roughing concentrate
针对澳大利亚某含硫铁铜矿样，采用先浮选硫化矿物、后磁选铁矿物的原则工艺，可在有效降低铁精矿中硫含量的同时综合回收矿石中的铜、硫。在原矿磨至-0．074 mm粒级占70％后铜硫混选，粗精矿再磨至-0．074 mm粒级占95％后铜硫分离，铜硫混选尾矿再弱磁选的闭路试验中，可以获得铜精矿品位19．93％、铜回收率80．35％，硫精矿品位32．75％、硫回收率41．13％，铁精矿铁品位71．45％、铁回收率89．44％（铁精矿含硫0．34％）。
針對澳大利亞某含硫鐵銅礦樣，採用先浮選硫化礦物、後磁選鐵礦物的原則工藝，可在有效降低鐵精礦中硫含量的同時綜閤迴收礦石中的銅、硫。在原礦磨至-0．074 mm粒級佔70％後銅硫混選，粗精礦再磨至-0．074 mm粒級佔95％後銅硫分離，銅硫混選尾礦再弱磁選的閉路試驗中，可以穫得銅精礦品位19．93％、銅迴收率80．35％，硫精礦品位32．75％、硫迴收率41．13％，鐵精礦鐵品位71．45％、鐵迴收率89．44％（鐵精礦含硫0．34％）。
침대오대리아모함류철동광양，채용선부선류화광물、후자선철광물적원칙공예，가재유효강저철정광중류함량적동시종합회수광석중적동、류。재원광마지-0．074 mm립급점70％후동류혼선，조정광재마지-0．074 mm립급점95％후동류분리，동류혼선미광재약자선적폐로시험중，가이획득동정광품위19．93％、동회수솔80．35％，류정광품위32．75％、류회수솔41．13％，철정광철품위71．45％、철회수솔89．44％（철정광함류0．34％）。
Aiming to recover copper and sulfur resources in an iron-copper ore from Australia and to reduce effectively the sulfur content in iron concentrates, a process consisting of flotation of sulfide minerals followed by magnetic separation of ferric minerals was adopted. In a closed-circuit test, Cu-S bulk flotation was conducted after the ore was ground to a fineness of -0.074 mm 70%. The obtained roughing concentrate was reground to a fineness of -0.074 mm 95% for Cu/S separation, and tailings was subjected to a low-intensity magnetic separation. Test resulted in 80.35% Cu recovery to a copper concentrate grading 19.93% Cu, 41.13% S recovery to a sulfur concentrate grading 32.75% S, and 89.44% Fe recovery to an iron concentrate grading 71.45% Fe and 0.34% S.
