Exploring the Mechanism of 4-Hydroxy-1,3,5-triazine-6-thiol Collector on Depressant-Free Flotation Separation of Galena from Sphalerite

被引:1
作者
Cheng, Chen [1 ]
Liu, Manman [1 ]
Qiu, Zhaohui [1 ]
Liu, Sheng [1 ]
Yang, Liu [1 ]
Chen, Wei [1 ]
Liu, Guangyi [1 ]
机构
[1] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
基金
中国国家自然科学基金;
关键词
ADSORPTION MECHANISM; 2-MERCAPTOBENZOTHIAZOLE; 2-MERCAPTOBENZIMIDAZOLE; CHALCOPYRITE; PERFORMANCE; COMPLEXES; BEHAVIOR; SORPTION; DENSITY; PYRITE;
D O I
10.1021/acs.langmuir.4c02987
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The flotation separation of galena from sphalerite was commonly implemented under pH > 10.5, which led to the consumption of lime. In this paper, 2-diethylamine-4-hydroxy-1,3,5-triazine-6-thiol (DEHTT) was synthesized and introduced as a highly selective collector to perform the depressant-free flotation separation of Pb/Zn sulfide minerals. The microflotation results indicated that 8.0 x 10(-7) mol/L DEHTT recovered 94.17% galena and 26.67% sphalerite from their mixture at pH 8.5 regulated by Na2CO3, and under the same conditions, sodium isobutyl xanthate (SIBX) floated out 94.94% galena and 50.41% sphalerite, deducing a superior flotation selectivity of DEHTT in comparison to SIBX. In situ AFM images displayed the more preferable adsorption of DEHTT on galena in comparison to that on sphalerite. The results of adsorption thermodynamics and kinetics inferred that the adsorption of DEHTT onto the galena surface was a spontaneous endothermic chemical process. XPS further indicated that DEHTT combined with interface Pb atoms to form the -S-Pb and -O-Pb bonds. The special affinity of DEHTT to galena achieved the selective flotation separation of galena from sphalerite without the addition of lime and depressants.
引用
收藏
页码:20811 / 20819
页数:9
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共 64 条
  • [21] Synthesis of trimethylacetyl thiobenzamide and its flotation separation performance of galena from sphalerite
    Jia, Yun
    Zhang, Yu
    Huang, Yaoguo
    Chen, Linlin
    Wang, Ming
    Zhang, Yali
    [J]. APPLIED SURFACE SCIENCE, 2021, 569
  • [22] Synthesis, flotation performance and adsorption mechanism of 3-(ethylamino)-N-phenyl-3-thioxopropanamide onto galena/sphalerite surfaces
    Jia, Yun
    Huang, Xiaoping
    Huang, Kaihua
    Wang, Shuai
    Cao, Zhanfang
    Zhong, Hong
    [J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2019, 77 : 416 - 425
  • [23] Selective depression of pyrite with a novel thiocarbonate in a pyrite-galena flotation system
    Jing, Gaogui
    Jian, Sheng
    Chen, Jianhua
    Xu, Shihong
    Sun, Wei
    Lin, Shangyong
    Gao, Zhiyong
    [J]. MINERALS ENGINEERING, 2023, 202
  • [24] COMPLEXES OF 2-MERCAPTOBENZOTHIAZOLE WITH CU(II), NI(II), CO(II), CD(II), ZN(II), PB(II), AG(I), AND TI(I)
    KHULLAR, IP
    AGARWALA, U
    [J]. CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1975, 53 (08): : 1165 - 1171
  • [25] A novel selective galena collector based on modified dithiophosphate in Pb-Zn flotation separation and its adsorption mechanism
    Kong, Luhuai
    Fu, Xiaokun
    Lu, Lulin
    Wang, Rongfang
    Wang, Hui
    Meng, Yao
    Zhang, Xingrong
    [J]. ADVANCED POWDER TECHNOLOGY, 2024, 35 (06)
  • [26] A QUALITATIVE AND QUANTITATIVE STUDY OF THE OXIDES OF ALUMINUM AND SILICON USING AES AND XPS
    KOVACICH, JA
    LICHTMAN, D
    [J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1985, 35 (1-2) : 7 - 18
  • [27] THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM.
    Langmuir, Irving
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1918, 40 : 1361 - 1403
  • [28] Hydrolyzation and adsorption behaviors of SPH and SCT used as combined depressants in the selective flotation of galena from sphalerite
    Li, Jianmin
    Song, Kaiwei
    Liu, Dianwen
    Zhang, Xiaolin
    Lan, Zhuoyue
    Sun, Yunli
    Wen, Shuming
    [J]. JOURNAL OF MOLECULAR LIQUIDS, 2017, 231 : 485 - 490
  • [29] New advances in the understanding and development of flotation collectors: A Chinese experience
    Liu, Guangyi
    Liu, Jun
    Huang, Yaoguo
    Yang, Xianglin
    Zhong, Hong
    [J]. MINERALS ENGINEERING, 2018, 118 : 78 - 86
  • [30] 6-Hexyl-1,2,4,5-tetrazinane-3-thione: Flotation selectivity and mechanism to copper sulfide mineral
    Liu, Jun
    Liu, Guangyi
    Yang, Xianglin
    Dong, Yan
    Zhang, Zhiyong
    [J]. MINERALS ENGINEERING, 2020, 152