基于油酸钠-苯甲羟肟酸组合捕收剂的白钨矿浮选效果及其机理研究  

Study on flotation effect and mechanism of scheelite based on sodiumoleate-benzyl hydroxamic acid combined collector

作　　者：罗亨通 封东霞 熊宇农 罗选旭 董梦 郭明龙 LUO Hengtong;FENG Dongxia;XIONG Yunong;LUO Xuanxu;DONG Meng;GUO Minglong(Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;National&Regional Engineering Research Center for Green Comprehensive Utilization of Gangue Resources from Metal Mines,Kunming Yunnan 650093,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,云南昆明650093

出　　处：《化工矿物与加工》2024年第9期9-16,共8页Industrial Minerals & Processing

基　　金：国家自然科学基金项目(52264025);云南省重大科技专项(202202AG50010);云南省“兴滇英才支持计划”青年人才项目(KKRD202221056)。

摘　　要：组合捕收剂之间存在协同效应,应用前景广阔,但其协同作用机理尚不明晰。本文以某白钨矿为研究对象,开展了油酸钠-苯甲羟肟酸组合捕收剂浮选白钨矿试验研究。通过单矿物浮选试验,考查了接触角、Zeta电位、表面张力等变量对浮选回收率的影响,探讨了组合捕收剂之间以及组合捕收剂与白钨矿物之间的作用机理。结果表明:捕收剂添加比例和添加顺序均对白钨矿浮选回收率有较大影响,组合捕收剂之间存在明显的协同效应;协同效应最大的组合方式为先添加苯甲羟肟酸后添加油酸钠,且NaOL和BHA的质量比为2∶1。There is a synergistic effect between the collectors,which has broad application prospects,but the mechanism of their synergistic effect is still unclear.This article takes a certain scheelite mine as the research object and conducts experimental research on the flotation of scheelite mine using a combination of sodium oleate and benzyl hydro-xamic acid as collectors.Through single mineral flotation experiments,the effects of variables such as contact angle,Zeta potential,and surface tension on flotation recovery were examined,and the mechanisms of interaction between combined collectors and between combined collectors and scheelite minerals were explored.The results showed that the addition ratio and order of collectors had a significant impact on the flotation recovery rate of scheelite,and there was a significant synergistic effect between the combined collectors;The combination with the greatest synergistic effect is to first add sodium benzylhydroxamic acid and then add sodium oleate,and the mass ratio of NaOL to BHA is 2∶1.

关 键 词：组合捕收剂 油酸钠 苯甲羟肟酸 协同效应 白钨矿 浮选回收率 

分 类 号：TD923.13[矿业工程—选矿]