某羟硅铍石矿中浮选富集含铍矿物的试验研究  

Reclaiming of Beryllium Minerals from Bertrandite Ore by Flotation

作　　者：耿志强 黄红军[2] 孙伟[2] GENG Zhi-qiang;HUANG Hong-jun;SUN Wei(Jiangxi Copper Co Ltd,Nanchang 330029,Jiangxi,China;School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China)

机构地区：[1]江西铜业集团有限公司,江西南昌330029 [2]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2018年第4期54-56,60,共4页Mining and Metallurgical Engineering

基　　金：高等学校学科创新引智计划(B14034);中南大学"创新驱动计划"项目(2015CX005)

摘　　要：新疆某羟硅铍石矿Be O品位0.47%,脉石矿物主要是石英、长石、云母等硅酸盐类矿物。为回收利用其中的铍矿物,采用浮选的方法对其进行试验研究。最终在磨矿细度-0.074 mm粒级占90%,调整剂氟化钠用量400 g/t、碳酸钠用量1 500 g/t、硫化钠用量2 000 g/t、六偏磷酸钠用量50 g/t,捕收剂油酸900 g/t+GYB 100 g/t的条件下,进行了一次粗选、一次扫选、四次精选的闭路浮选试验,可获得Be O品位8.31%、回收率84.56%的铍精矿。该羟硅铍石的浮选富集程度较好,可为同类型矿石的开发提供依据。A bertrsandite ore from Xinjiang with BeO grade ol 0.47%,in which silicate minerals like quartz,feldspar and mica were the dominant gangue m inerals,was processed by flotation to recover berryllium minerals therein.A closed-circuit flotation process consisting of one stage of roughing,one stage of scavenging and four stages of cleaning was performed with the grinding fineness of-0.074 mm 90%,dosage for regulator sodium fluoride,sodium carbonate,sodium sulfide and sodium hexametaphosphate at 400 g/t,1 500 g/t,2 000 g/t and 50 g/t,respectively,dosage for collector oleate acid and GYB at 900 g/t and 100 g/t,respectively,resulting in a berryllium concentrate with BeO grade of 8.31%at 84.56%recovery.It is shown that a good enrichment effect of bertrsandite ore is attained by flotation,which can provide reference for beneficiation of sim ilar ores.

关 键 词：浮选 羟硅铍石 铍 铝硅酸盐 

分 类 号：TD923[矿业工程—选矿]