摘要
对某银锰矿进行了工艺矿物学研究,该矿石中的银主要以银锰矿和自然银两种矿物存在,而且软锰矿含量较高,在磨矿过程中易产生细泥。通过各种条件试验,最终采用粗磨-强磁选-细磨-浮选银-浮选锰泥的流程进行闭路试验,可以得到强磁精矿含银595.7g/t,浮选银精矿含银7328.0g/t,浮选锰矿泥含银288.7g/t,银的总回收率81.44%,合并3种精矿的平均品位为586.8g/t的选矿指标。
Process mineralogy was made on a certain silver-manganese ore, where the silver mainly occurs in silver- manganese ore and natural silver mineral phases and the content of pyrolusite is high, which is apt to produce fine slime in grinding process. Based on conditional tests, a closed-circuit test was made on the flowsheet consisting of primary grinding, high intensity magnetic separation （HIMS） , secondary grinding, silver flotation and manganese flotation. As a result, a HIMS concentrate containing 595.7 g/t, flotation silver concentrate grading 7 328.0 g/t and flotation manganese slime containing 288.7 g/t were obtained, with the total silver recovery being 81.44% and an average silver grade of the three concentrates being 586.8 g/t.
出处
《金属矿山》
CAS
北大核心
2008年第3期98-102,共5页
Metal Mine
关键词
银锰矿
软锰矿
强磁选
浮选
Silver-manganese ore, Pyrolusite, HIMS, Flotation
