羟肟酸捕收剂的结构优化及应用研究进展  

Research progress on structure optimization and application of hydroxamic acid collector

作　　者：邓朝政 程永彪 付君浩 曾礼强 崔曼 刘卫平 陈文胜[4] 韩海生 DENG Chaozheng;CHENG Yongbiao;FU Junhao;ZENG Liqiang;CUI Man;LIU Weiping;CHEN Wensheng;HAN Haisheng(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;Yizhang Hongyuan Chemical Co.Ltd.,Chenzhou 424202,China;Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization,Central South University,Changsha 410083,China;Technology Research Center of Hunan Province for Comprehensive Utilization of Associated Fluorite and Fluorine Chemical Engineering,Chenzhou 423037,China)

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]宜章弘源化工有限责任公司,湖南郴州424202 [3]中南大学金属资源开发利用碳减排教育部工程研究中心,湖南长沙410083 [4]湖南省伴生萤石综合利用氟化学工程技术研究中心,湖南郴州423037

出　　处：《中南大学学报（自然科学版）》2024年第6期2061-2073,共13页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金委优秀青年基金资助项目(52122406);国家“十四五”重点研发计划项目(2022YFC2905104,2022YFC2905105)。

摘　　要：羟肟酸作为传统的阴离子型螯合捕收剂,被广泛用于氧化矿物、稀土矿物的浮选。近年来,随着浮选药剂分子设计理论的发展和对浮选药剂作用原理的深入研究,越来越多的新型羟肟酸捕收剂被开发并用于矿物浮选。羟肟酸捕收剂由极性基团和非极性基团组成,通过优化这2种基团的结构可强化捕收剂浮选性能。对于极性基团,可以通过引入羟肟基团、含氮基团以及硫醚基团进行优化;对于非极性基团,可以通过选择合适的烃链结构、引入亲电子或送电子基团进行优化。金属基羟肟酸配合物与矿物表面有2种作用模型,分别是预先吸附活化浮选模型、金属离子界面预组装模型。As a traditional anionic chelating collector,hydroxamic acid is widely used in the flotation of oxide minerals and rare earth minerals.In recent years,with the development of the molecular design theory of flotation reagents and the in-depth study of the principle of action of flotation reagents,more and more new hydroxamic acid collectors have been developed and applied in mineral flotation.Hydroxamic acid collectors are composed of polar and non-polar groups,and the flotation performance of the collectors can be enhanced by optimizing the structure of these two groups.For the polar group,it can be optimized by introducing hydroxamic group,nitrogen-containing group and sulfide ether group;for the nonpolar group,it can be optimized by choosing suitable hydrocarbon chain structure and introducing electrophilic or electrophobic group.There are two interaction models between metal-based hydroxyxamic acid complexes and mineral surfaces,namely the pre-adsorption activated flotation model and the metal ion interface pre-assembly model.

关 键 词：羟肟酸 矿物浮选 分子结构设计 金属离子配合物 

分 类 号：TD91[矿业工程—选矿]