摘要
利用矿物自动定量分析系统(AMICS)及偏光显微镜对黄梅沉积变质型磷灰岩开展了系统的工艺矿物学研究,并进行了浮选验证试验。研究结果表明:该磷灰岩中主要磷矿物为磷灰石(23.57%),主要脉石矿物为石英(26.32%)和钾长石(26.51%),次要的脉石矿物为白云石(12.12%)和方解石(3.68%);且磷灰石、石英、钾长石的嵌布粒度较粗,只有少量白云石和方解石以浸染的方式嵌布在胶磷矿内部;当矿石粒度度小于0.074 mm占57.71%时,磷灰石、石英和钾长石基本实现单体解离(解离度>80%);随后采用一粗一精浮选试验进行验证,发现在该磨矿粒度下,可获得91.84%的浮选回收率,且精矿中P_(2)O_(5)品位为35.77%。
Using the automatic mineral quantitative analysis system(AMICS)and polarization microscope,we systematically studied process mineralogy of Huangmei sedimentary metamorphic phosphorite,and carried out laboratory flotation tests.The results show that the main valuable mineral in the phosphate ore is apatite(23.57%),and the main gangue minerals are quartz(26.32%)and potash feldspar(26.51%).The secondary gangue minerals are dolomite(12.12%)and calcite(3.68%).The main minerals,apatite,quartz,and potash feldspar are of coarse-grained distribution,only a small amount of dolomite and calcite is embedded in the collophane in a way of impregnation.With the grinding fineness of<0.074 mm accounting for 57.71%,apatite,quartz,and potash feldspar are basically liberated into monomers(liberation degree>80%).Under the above grinding fineness,direct one roughing and one cleaning flotation test verified that the flotation recovery and concentrate of P_(2)O_(5) grade can reach 91.84%and 35.77%,respectively.
作者
郑惠方
田毛毛
张文
戈武
李洪强
翁孝卿
罗惠华
何东升
ZHENG Huifang;TIAN Maomao;ZHANG Wen;GE Wu;LI Hongqiang;WENG Xiaoqing;LUO Huihua;HE Dongsheng(School of Resource and Safety Engineering,Wuhan Institute of Technology,Wuhan 430074,China)
出处
《武汉工程大学学报》
CAS
2021年第5期551-556,共6页
Journal of Wuhan Institute of Technology
基金
国家自然科学基金(51974205,51904208)
中央政府指导地方科技发展项目(2019ZYYD070)
湖北省重大科技创新项目(2017ACA187)
武汉工程大学第十一届研究生创新教育基金(CX2019109)。
关键词
工艺矿物学
黄梅磷矿
矿物自动定量分析系统(AMICS)
光学显微镜
浮选试验
process mineralogy
Huangmei phosphate ore
automatic mineral quantitative analysis system(AMICS)
polarization microscope
flotation tests
