中南大学学报（自然科学版）2025，Vol.56Issue(2)：425-434,10.DOI:10.11817/j.issn.1672-7207.2025.02.002
亚麻籽胶对白钨矿和方解石浮选分离的影响及作用机理
Effect of flaxseed gum on flotation separation of scheelite and calcite and action mechanism
摘要
Abstract
Scheelite and calcite have similar physical and chemical properties,and the same adsorption particle,which leads to the difficulty of flotation separation.The effect of flaxseed gum on the floatability of scheelite and calcite was studied by flotation experiments of single mineral and artificial mixed mineral.The selective depression mechanism of flaxseed gum was revealed by infrared spectroscopy and X-ray photoelectron spectroscopy.The results show that flaxseed gum has a selective depression effect on calcite.When pH=9.0 and the mass concentration of flaxseed gum is 20 mg/L,the floatability difference between scheelite and calcite is the largest in the sodium oleate collector system.Besides,the recovery difference between scheelite and calcite is as high as 88％-90％.Meanwhile,the flaxseed gum as a depressant has the advantage of high selectivity and small dosage.The flaxseed gum mainly relies on hydroxyl groups to complex with Ca2+adsorption sites on the surface of calcite,and preventing the interaction between sodium oleate and calcite by preoccupying the adsorption site.Moreover,the adsorption strength of flaxseed gum on the surface of calcite is stronger than that on scheelite,which has a stronger depression effect on calcite and expands the difference in floatability between scheelite and calcite.关键词
白钨矿/方解石/吸附/浮选分离/抑制机理Key words
scheelite/calcite/adsorption/flotation separation/depression mechanism分类
矿业与冶金引用本文复制引用
杨志兆,周贺鹏,高志勇,许浩,郭江凤,唐学昆,罗仙平..亚麻籽胶对白钨矿和方解石浮选分离的影响及作用机理[J].中南大学学报（自然科学版）,2025,56(2):425-434,10.基金项目
江西省青年井冈学者奖励计划项目(QNJG2020048) （QNJG2020048）
江西理工大学清江青年英才支持计划项目(JXUSTQJBJ2020002) （JXUSTQJBJ2020002）
战略含钙矿产资源清洁高效利用湖南省重点实验室开放基金资助项目(2018TP1002)(Project(QNJG2020048)supported by the Youth Jinggang Scholars Program in Jiangxi Province （2018TP1002）
Project(JXUSTQJBJ2020002)supported by the Program of Qingjiang Excellent Young Talents,Jiangxi University of Science and Technology （JXUSTQJBJ2020002）
Project(2018TP1002)supported by the Open Foundation of Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources) （2018TP1002）
