Influence of Gas Microbubbles on the Wettability of Coal Surfaces

被引：1
|
作者：
Patrakov, Yu F. [1 ]
Semenova, S. A. [1 ]
Papina, T. A. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Coal, Fed Res Ctr Coal & Coal Chem, Kemerovo, Russia
来源：
COKE AND CHEMISTRY | 2020年 / 63卷 / 02期
关键词：
coal; flotation; microbubbles; gas-liquid suspension; hydrophobic surfaces; surface wetting; limiting wetting angle; FLOTATION;
D O I：
10.3103/S1068364X20020076
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Using low-ash OS coal as a model, a method is developed for creating a hydrophobic coal surface by means of microbubbles in a gas-liquid suspension. Air microbubbles are generated by decompression. The influence of the pressure in the gas saturation of water on the size and stability of the microbubbles is established. It is shown that, in the presence of microbubbles, a hydrophobic air layer is formed at the coal surface. That provides the basis for the attachment of flotational bubbles.
引用
收藏
页码：63 / 67
页数：5
相关论文
共 50 条
  • [31] INFLUENCE OF SUBSTRATE WETTABILITY ON ATTACHMENT OF MARINE BACTERIA TO VARIOUS SURFACES
    DEXTER, SC
    SULLIVAN, JD
    WILLIAMS, J
    WATSON, SW
    APPLIED MICROBIOLOGY, 1975, 30 (02) : 298 - 308
  • [32] INFLUENCE OF SURFACTANT STRUCTURE ON WETTABILITY MODIFICATION OF HYDROPHOBIC GRANULAR SURFACES
    VARADARAJ, R
    BOCK, J
    BRONS, N
    ZUSHMA, S
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1994, 167 (01) : 207 - 210
  • [33] INFLUENCE EXERTED BY GAS-DISCHARGES ON THE WETTABILITY OF POLYMERS
    KASSENBECK, P
    HUBER, H
    MELLIAND TEXTILBERICHTE INTERNATIONAL TEXTILE REPORTS, 1980, 61 (05): : 457 - 460
  • [34] Study on the Influence Mechanism of Hot Flue Gas Injection Pressure on the Wettability of Anthracite Coal: From the Perspective of Molecular Dynamics
    Ma, Shunqing
    Lin, Baiquan
    Zhang, Xiangliang
    Liu, Qian
    Zha, Wei
    ACS OMEGA, 2024, 9 (44): : 44577 - 44587
  • [35] Influence of coal structure and macrolithotype of coal on coal adsorption and desorption of gas
    Zhao F.
    Deng Z.
    Wang H.
    Wang Z.
    Sun P.
    Yang S.
    Meitan Kexue Jishu/Coal Science and Technology (Peking), 2022, 50 (12): : 170 - 184
  • [36] Study on the influence of new compound reagents on the functional groups and wettability of coal
    Liu, Zhen
    Zhu, Muyao
    Yang, He
    Zhao, Dawei
    Zhang, Kaimeng
    Fuel, 2021, 302
  • [37] Study on the influence of new compound reagents on the functional groups and wettability of coal
    Liu, Zhen
    Zhu, Muyao
    Yang, He
    Zhao, Dawei
    Zhang, Kaimeng
    FUEL, 2021, 302
  • [38] Recovery of coal tar and creosote from porous media: The influence of wettability
    Hugaboom, DA
    Powers, SE
    GROUND WATER MONITORING AND REMEDIATION, 2002, 22 (04): : 83 - 90
  • [39] Coal to gas: the influence of methane leakage
    Wigley, Tom M. L.
    CLIMATIC CHANGE, 2011, 108 (03) : 601 - 608
  • [40] Coal to gas: the influence of methane leakage
    Tom M. L. Wigley
    Climatic Change, 2011, 108 : 601 - 608
12345