Mechanisms of surface charge development of serpentine mineral

被引：50
|
作者：
Feng, Bo [1 ]
Lu, Yi-ping [1 ]
Feng, Qi-ming [1 ]
Ding, Peng [1 ]
Luo, Na [1 ]
机构：
[1] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2013年 / 23卷 / 04期
基金：
中国国家自然科学基金;
关键词：
serpentine; magnesium ions; hydroxyl; surface charge; incongruent dissolution; HYDROLYZABLE METAL-IONS; OXIDE-WATER INTERFACE; FLOTATION; PENTLANDITE; SEPARATION; ADSORPTION; CO(II); TIO2; SIO2;
D O I：
10.1016/S1003-6326(13)62574-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The electrokinetic behavior and surface dissolution of serpentine mineral were studied through Zeta potential measurements, dissolution experiments and X-ray photoelectron spectroscopy. The results show that serpentine has an iso-electric point (IEP) of 11.9, which is higher than that of other phyllosilicate minerals. Dissolution experiments show that the hydroxyl is easy to dissolve with respect to the magnesium cations in the magnesium oxide octahedral sheet. As a result of hydroxyl dissolution, the magnesium ions are left on serpentine surface, which is responsible for serpentine surface charge. The removal of magnesium ions from serpentine surface by acid leaching results in a decrease of serpentine IEP. Therefore, it has been clearly established that the surface charge developed at the serpentine/aqueous electrical interface is a function of the serpentine surface incongruent dissolution.
引用
收藏
页码：1123 / 1128
页数：6
相关论文
共 50 条
  • [21] Influence of Surface Chemistry and Charge on Mineral-RNA Interactions
    Swadling, Jacob B.
    Suter, James L.
    Greenwell, H. Christopher
    Coveney, Peter V.
    LANGMUIR, 2013, 29 (05) : 1573 - 1583
  • [22] Effects of the Reservoir Environment and Oilfield Operations on the Iron Mineral Surface Charge Development: An Insight into Their Role in Wettability Alteration
    Mohammed, Isah
    Mahmoud, Mohamed
    Al Shehri, Dhafer
    Kamal, Muhammad Shahzad
    Alade, Olalekan Saheed
    Energy and Fuels, 2022, 36 (03): : 1676 - 1687
  • [23] Effects of the Reservoir Environment and Oilfield Operations on the Iron Mineral Surface Charge Development: An Insight into Their Role in Wettability Alteration
    Mohammed, Isah
    Mahmoud, Mohamed
    Al Shehri, Dhafer
    Kamal, Muhammad Shahzad
    Alade, Olalekan Saheed
    ENERGY & FUELS, 2022, 36 (03) : 1676 - 1687
  • [24] Sliding friction and wear behaviors of surface-coated natural serpentine mineral powders as lubricant additive
    Zhang, Baosen
    Xu, Yi
    Gao, Fei
    Shi, Peijing
    Xu, Binshi
    Wu, Yixiong
    APPLIED SURFACE SCIENCE, 2011, 257 (07) : 2540 - 2549
  • [25] MECHANISMS OF SURFACE-CHARGE ACCUMULATION IN SF(6)
    JING, T
    MORSHUIS, PHF
    KREUGER, FH
    ARCHIV FUR ELEKTROTECHNIK, 1994, 77 (02): : 151 - 155
  • [26] PETROLOGY OF SERPENTINE SANDSTONE AS A KEY TO TECTONIC DEVELOPMENT OF SERPENTINE BELTS
    ARAI, S
    OKADA, H
    TECTONOPHYSICS, 1991, 195 (01) : 65 - 81
  • [27] Surface-mediated mineral development by bacteria
    Fortin, D
    Ferris, FG
    Beveridge, TJ
    GEOMICROBIOLOGY: INTERACTIONS BETWEEN MICROBES AND MINERALS, 1997, 35 : 161 - 180
  • [28] Phase behavior of serpentine mineral by carbothermal reduction nitridation
    Li, Wen-Juan
    Huang, Zhao-Hui
    Liu, Yan-Gai
    Fang, Ming-Hao
    Ouyang, Xin
    Huang, Sai-Fang
    APPLIED CLAY SCIENCE, 2012, 57 : 86 - 90
  • [29] INFLUENCE OF A MINERAL CONDITIONER ON THE MECHANISMS OF DISAGGREGATION AND SEALING OF A SOIL SURFACE
    LESOUDER, C
    LEBISSONNAIS, Y
    ROBERT, M
    SOIL SCIENCE, 1991, 152 (05) : 395 - 402
  • [30] Evaluation of reaction variables in the dissolution of serpentine for mineral carbonation
    Alexander, George
    Maroto-Valer, M. Mercedes
    Gafarova-Aksoy, Parvana
    FUEL, 2007, 86 (1-2) : 273 - 281
12345