矿产保护与利用2024，Vol.44Issue(6)：80-87,8.DOI:10.13779/j.cnki.issn1001-0076.2024.08.003
钼精选尾矿中微细粒铜钼硫化矿的选择性絮凝浮选
Comprehensive Recovery of Cu and Mo from Molybdenum Cleaner Tailings by Selective Flocculation Flotation
摘要
Abstract
The granularity of a molybdenum cleaner tailings from Henan Province was fine,with-23 μm grade accounting for 65％.The Cu and Mo grades of the tailings were 0.20％and 0.08％,respectively,which had a certain recovery value.PADD flocculant was synthesized by introducing hydrophobic monomer-dodecyl gluconide on acrylamide,which had a good hydrophobicity.In the work,PADD was used as flocculant to recovery fine Cu-Mo sulfide ore from the molybdenum cleaner tailings via selective flocculation flotation.Under the conditions of pulp pH 4.2,the dosages of sodium hempetaphosphate,PADD,cupric sulfate,kerosene,ethylthiamine and 2#oil were 500 g/t,150 g/t,100 g/t,170 g/t,151 g/t and 60 g/t,respectively,the closed circuit of once roughing flotation,once scavenging flotation,twice cleaning flotation,and the middles Ⅰ,Ⅱ and Ⅲ were combined return to the roughing flotation were performed.The obtained final mixed concentrate had the Cu grade of 12.054％,Cu recovery of 89.98％,Mo grade of 3.214％,and Mo recovery of 64.20％,which efficiently comprehensive recovered the valuable Cu and Mo from the molybdenum cleaner tailings.Based on the strong hydrophobicity,PADD selectively flocculated micro-fine copper molybdenum sulfide ore mainly through the hydrophobic force,and then significantly improved the selective flocculation flotation effect of micro-fine copper molybdenum sulfide ore in molybdenum tailings.关键词
钼精选尾矿/选择性絮凝浮选/铜钼硫化矿/综合回收Key words
molybdenum cleaner tailings/selective flocculation flotation/Cu-Mo sulfide ore/comprehensive recovery分类
矿业与冶金引用本文复制引用
彭伟军,吕帅,雒伟哲,祁梦瑶,张龙玉,陈湘根,晁彦德,王伟..钼精选尾矿中微细粒铜钼硫化矿的选择性絮凝浮选[J].矿产保护与利用,2024,44(6):80-87,8.基金项目
国家重点研发计划课题(2020YFC1908804) （2020YFC1908804）
河南省自然科学基金面上项目(242300420002) （242300420002）
郑州大学青年教师培育基金(JC23563033) （JC23563033）
郑州市协同创新重大专项(21XTZX06027) （21XTZX06027）
