A depressant for marmatite flotation:Synthesis,characterisation and floatation performance  

作　　者：Tichen Wang Guiju Sun Jiushuai Deng Hongxiang Xu Guoyong Wang Mingzhen Hu Qizheng Qin Xiaohao Sun 

机构地区：[1]Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry,Engineering Technology Research Center for Comprehensive Utilization of Rare Earth-Rare Metal-Rare Scattered in Non-ferrous Metal Industry,School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China [2]Inner Mongolia Research Institute,China University of Mining and Technology(Beijing),Ordos 017001,China [3]National Engineering Laboratory for Efficient Utilization of Indium and Tin Resources,Liuzhou 545000,China [4]The Geological Museum of China,Beijing 100034,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2023年第6期1048-1056,共9页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.52274283);the Fundamental Research Funds for the Central Universities(No.2022JCCXHH09);the Yueqi Outstanding Scholar award of CUMTB,the Science and Technology Major Project of Ordos City-Iconic Innovation Team(No.202204);the National Key R&D Program of China(Nos.2022YFC2900065 and 2021YFC2902602).

摘　　要：This study synthesised a zincic salt(ZS)as a depressant for marmatite-galena separation.The effect of ZS on the flotation of marmatite and galena was investigated through micro-flotation tests.88.89%of the galena was recovered and 83.39%of the marmatite was depressed with ZS dosage of 750 mg·L^(−1)at pH=4.The depression mechanism of ZS on marmatite was investigated by a variety of techniques,including adsorption measurements,Fourier transform infrared(FTIR),X-ray photoelectron spectroscopic(XPS)analysis,and time of flight secondary ion mass spectrometry(ToF-SIMS).Results of adsorption tests and FTIR reveal that ZS adsorbed on marmatite surface and impeded the subsequent adsorption of butyl xanthate(BX).The results of XPS and ToF-SIMS indicate that the ZnO_(2)^(3-)released by ZS could be chemisorbed on the marmatite surface and depress marmatite flotation.

关 键 词：MARMATITE zincic salt flotation separation depression mechanism time of flight secondary ion mass spectrometry 

分 类 号：TD952[矿业工程—选矿] TD923