钛铁矿在捕收剂1,10-菲罗啉作用下的浮选行为  

Flotation behavior of ilmenite using 1,10-phenanthroline as novel collector

作　　者：陈攀[1] 刘佳燕 李维斯 翟计划 杨耀辉[2] Pan CHEN;Jia-yan LIU;Wei-si LI;Ji-hua ZHAI;Yao-hui YANG(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences,Chengdu 610000,China;College of Materials and Chemistry&Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083 [2]中国地质调查局成都矿产综合利用研究所,成都610000 [3]成都理工大学材料与化学化工学院,成都610059

出　　处：《Transactions of Nonferrous Metals Society of China》2024年第3期995-1002,共8页中国有色金属学报（英文版）

基　　金：support of the National Natural Science Foundation of China (No. 52074357);National Key Research and Development Program of China (No. 2019YFC1803500)。

摘　　要：引入1,10-菲罗啉(Phen)作为钛铁矿与钛辉石选择性分离的新型捕收剂。浮选实验表明,与苯甲羟肟酸(BHA)相比,在pH 2~12之间,Phen是钛铁矿浮选更加有效的捕收剂,并且在pH 6时钛铁矿的回收率提高最大(约为20%)。在浮选过程中,钛辉石的可浮性保持在非常低的水平(回收率<5%)。FTIR和XPS分析表明,Phen和BHA以化学吸附的方式吸附在钛铁矿表面,并且钛铁矿与Phen之间的相互作用比BHA更强。XPS结果还表明,Phen在钛铁矿表面与铁(亚铁和铁)和钛发生反应,在Phen吸附到钛铁矿表面的过程中形成五元环结构。1,10-phenanthroline(Phen)was introduced as the novel collector for the selective separation of ilmenite from titanaugite.Micro-flotation showed that Phen was a more effective collector for ilmenite flotation from pH 2 to 12 compared with benzohydroxamic acid(BHA),and the maximum increase in ilmenite recovery(~20%)was observed at pH 6.Titanaugite kept at very low level of floatability(recovery<5%)during micro-flotation test.FTIR and XPS analyses indicated that Phen and BHA adsorbed onto ilmenite surface via chemisorption and the interaction between Phen and ilmenite was intenser than that of BHA.XPS results also showed that Phen reacted with both iron(ferrous and ferric)and titanium on the ilmenite surface.A five membered ring structure appeared to form during the adsorption of Phen onto the ilmenite surface.

关 键 词：钛铁矿 1 10-菲罗啉 浮选 苯甲羟肟酸 

分 类 号：TD951[矿业工程—选矿] TD923