矿产保护与利用
礦產保護與利用
광산보호여이용
CONSERVATION AND UTILIZATION OF MINERAL RESOURCES
2013年
1期
24-27
,共4页
李文军%曹飞%岳铁兵%郭珍旭%吕良%方利红
李文軍%曹飛%嶽鐵兵%郭珍旭%呂良%方利紅
리문군%조비%악철병%곽진욱%려량%방리홍
铬矿%铬尖晶石%重选%磁选%摇床%螺旋溜槽
鉻礦%鉻尖晶石%重選%磁選%搖床%螺鏇霤槽
락광%락첨정석%중선%자선%요상%라선류조
chrome ores%spinel%gravity separation%magnetic separation%shaking table%spiral chute
菲律宾某铬矿中的铬矿物以铬尖晶石的形式存在，脉石矿物以蛇纹石为主。试验样品Cr2 O3含量23．47％，磁选、螺旋溜槽、摇床试验研究表明，该矿石采用摇床重选工艺较为合适。采用磨矿-摇床抛尾-中矿再选工艺，最终选别指标为精矿产率57．19％，Cr2 O3品位37．46％，Cr2 O3回收率88．78％。
菲律賓某鉻礦中的鉻礦物以鉻尖晶石的形式存在，脈石礦物以蛇紋石為主。試驗樣品Cr2 O3含量23．47％，磁選、螺鏇霤槽、搖床試驗研究錶明，該礦石採用搖床重選工藝較為閤適。採用磨礦-搖床拋尾-中礦再選工藝，最終選彆指標為精礦產率57．19％，Cr2 O3品位37．46％，Cr2 O3迴收率88．78％。
비률빈모락광중적락광물이락첨정석적형식존재，맥석광물이사문석위주。시험양품Cr2 O3함량23．47％，자선、라선류조、요상시험연구표명，해광석채용요상중선공예교위합괄。채용마광-요상포미-중광재선공예，최종선별지표위정광산솔57．19％，Cr2 O3품위37．46％，Cr2 O3회수솔88．78％。
The chrome minerals in an chromium ore sample from Philippines existed in the form of chromium spinel , gangue minerals mainly being serpentine and small amounts of carbonate .The Cr2 O3 content of the lump sample was 23.47%.Several methods including magnetic separation , spiral chute and shaking table were applied to separate the chrome minerals from the gangue miner-als.Only the shaking table output good results , and finally a process including grinding , shaking table separation and retreatment of table middling was applied .The yield of the concentrate was 57.19%, with a Cr2 O3 content of 37.46%and a recovery of 88.78%.
