武汉工程大学学报2024，Vol.46Issue(2)：119-124,6.DOI:10.19843/j.cnki.CN42-1779/TQ.202311018
酰基季铵盐脱硅捕收剂的合成与应用
Synthesis and application of acyl quaternary ammonium salt desilication collector
摘要
Abstract
Using dodecanoyl chloride,dimethylaminopropylamine,and bromoethane as starting materials,a highly efficient acyl quaternary ammonium salt,i.e.collector XN-12 that can selectively float and remove silica under under acidic pulp conditions was synthesized.Flotation results show that in single quartz mineral flotation experiments,XN-12 has good flotation performance on quartz under conditions of mineral slurry with pH＞5;when directly subjected to single reverse flotation desilication using XN-12 for high-silica phosphate ore,under acidic mineral slurry conditions at pH = 5.6,with a dosage of 5.0 kg/t of sodium tripolyphosphate depressant and 1.2 kg/t of XN-12,the obtained phosphorus concentrate had good indicators of P2O5 grade 30.31%,recovery rate 81.60%,SiO2 grade 7.26%,and desilication rate 69.12%.关键词
磷矿/脱硅/季铵盐/合成/反浮选Key words
phosphate rock/desilication/quaternary ammonium salt/synthesis/reverse flotation分类
矿业与冶金引用本文复制引用
陈友顺,徐廷航,张逸,龙秉文,邓伏礼,戴亚芬,丁一刚..酰基季铵盐脱硅捕收剂的合成与应用[J].武汉工程大学学报,2024,46(2):119-124,6.基金项目
湖北省技术创新专项(2020BED030) （2020BED030）
