武汉工程大学学报2026，Vol.48Issue(2)：133-139,7.DOI:10.19843/j.cnki.CN42-1779/TQ.202303036
花岗岩中石英多次反浮选分离探索试验
Separation of quartz from granite via multiple reverse flotations
摘要
Abstract
After magnetic separation,the main mineral composition of granite ore from a location in Hubei Province was determined as follows:quartz 30.22%,potassium feldspar 28.59%,albite 39.14%,and other minerals 2.05%.A molecular self-assembly flotation system was established using a mixture of dodecylamine and oxalic acid(GDDA)as the collector,sodium oleate(NaOL)as the auxiliary collector,and aviation kerosene(MY)as the agglomeration promoter.The variations in zeta potential and mineral agglomeration behavior due to reagent-mineral interactions were investigated,and the optimal flotation conditions were determined through response surface methodology.Results indicated that the selective agglomeration effect of kerosene effectively facilitated the separation of quartz from feldspar.Optimum separation conditions were achieved at a pulp pH of 3,with a GDDA dosage of 700 g/t,NaOL dosage of 20 g/t,and MY dosage of 24 L/t,under which the separation efficiency of quartz and feldspar reached 85.18%.After processing the actual ore through a reverse flotation flowsheet consisting of one roughing and two cleaning stages,a quartz concentrate with a relative recovery of 92.26%and SiO2 content of 99.32%was achieved.关键词
花岗岩矿/反浮选/分子自组装/石英Key words
granite ore/reverse flotation/molecular self-assembly/quartz分类
矿业与冶金引用本文复制引用
钟锦棒,程清蓉,周红,潘志权..花岗岩中石英多次反浮选分离探索试验[J].武汉工程大学学报,2026,48(2):133-139,7.基金项目
武汉工程大学研究生教育创新基金(CX2022414) （CX2022414）
