云南某中低品位胶磷矿石反—正浮选脱镁降硅试验研究

现代矿业 ›› 2020, Vol. 36 ›› Issue (4): 121-124.

云南某中低品位胶磷矿石反—正浮选脱镁降硅试验研究

黄晨蕾¹，杨霄¹，王文源¹，蔡忠俊¹，刘幸¹，罗惠华¹，周军²

1.武汉工程大学兴发矿业学院；2.云南磷化集团有限公司

出版日期:2020-04-25 发布日期:2020-05-20
基金资助:
*湖北省技术创新重大项目（编号：2017ACA187）,武汉工程大学研究生创新基金项目（编号：CX2018086）,湖北省中央引导地方科技发展专项（编号：2017ZYYD007）。

Study on Reverse and Direct Flotation Removed Magnesium and Degrade Silicon for Medium and Low Grade Collophanite in Yunnan

Huang Chenlei¹，Yang Xiao¹，Wang Wenyuan¹，Cai Zhongjun¹，Liu Xing¹，Luo Huihua¹，Zhou Jun²

1.Xingfa School of Mining Engineering,Wuhan Institute of Technology；2.Yunnan Phosphate Chemical Group Co.,Ltd.

Online:2020-04-25 Published:2020-05-20

摘要/Abstract

摘要： 为确定云南某低品位胶磷矿石的选矿工艺，根据该磷矿石的工艺矿物学特性以及优先浮选易选矿物和浮少抑多的原则，采用反正联合浮选工艺流程处理矿石。结果表明，P₂O₅品位为25.93%的原矿在磨矿细度为-0.074 mm占80%的情况下，采用1粗1扫反浮选—反浮选精矿脱水—1粗1精1扫正浮选、中矿顺序返回流程处理，获得了P₂O₅品位为31.30%、回收率为84.75%的精矿，精矿MER值为10.06%、较原矿降低9.04个百分点，SiO₂含量为15.23%、较原矿降低7.34个百分点。反正联合浮选工艺是分选中低品位胶磷矿的高效、简单工艺。

关键词: 中低品位胶磷矿石, 反浮选, 正浮选, 脱镁降硅

Abstract: In order to determine the beneficiation process of a low-grade collophanite ore in Yunnan,according to the technological mineralogical characteristics of the phosphate ore and the principle of preferential flotation of easily-selected minerals and less flotation and more suppression,the beneficiation test was carried out by adopting reverse combined direct flotation process.The results show that when the raw ore with P₂O₅ grade of 25.93%,with grinding fineness of -0.074 mm 80.0%,treated by the process of one roughing one scavenging reverse flotation-concentrate of reverse flotation dehydration-one roughing one cleaning one scavenging direct flotation and medium returned back process.The concentrate with P₂O₅ grade of 31.30% and recovery of 84.75% is obtained,The MER value of the concentrate is 10.06%,which is 9.04 percentage points lower than the original ore,and the SiO₂ content is 15.23%,which is 7.34 percentage points lower than the original ore.The reverse combined direct flotation process is an efficient and simple process to separate low-grade collophanite.

Key words: Medium and low grade collophanite, Reverse flotation, , Direct flotation, Remove magnesium and degrading silicon 

黄晨蕾, 杨霄, 王文源, 蔡忠俊, 刘幸, 罗惠华, 周军. 云南某中低品位胶磷矿石反—正浮选脱镁降硅试验研究[J]. 现代矿业, 2020, 36(4): 121-124.

HUANG Chen-Lei, YANG Xiao, WANG Wen-Yuan, CAI Zhong-Jun, LIU Xing, LUO Hui-Hua, ZHOU Jun. Study on Reverse and Direct Flotation Removed Magnesium and Degrade Silicon for Medium and Low Grade Collophanite in Yunnan[J]. Modern Mining, 2020, 36(4): 121-124.

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