Flotation of coal in the presence of quartz and clay minerals

被引：16

作者：

Wang, Hainan ^{[1
]}

Zhu, Hongzheng ^{[1
,2
]}

Zhu, Jinbo ^{[1
]}

Xu, Wenyu ^{[1
]}

Li, Mengshan ^{[1
]}

Fei, Zhikui ^{[1
]}

机构：

[1] Anhui Univ Sci & Technol, Sch Mat Sci & Engn, Huainan, Peoples R China

[2] Univ Autonoma San Luis Potosi, Inst Met, Surface Chem Lab, San Luis Potosi, San Luis Potosi, Mexico

来源：

INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION | 2021年 / 41卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Flotation; quartz; clay mineral; coal; extended DLVO theory; KAOLINITE; SIZE; SEPARATION;

D O I：

10.1080/19392699.2018.1487408

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A flotation study was conducted to evaluate the separation of coal in the presence of quartz and clay minerals. The interaction energies between coal and quartz, kaolinite, and montmorillonite were analyzed via the Extended Derjaguin-Landau-Verwey-Overbeek (EDLVO) theory. Also, the quartz, kaolinite and montmorillonite coatings were explored using SEM technique. Energy barriers were calculated to exist between coal and quartz, kaolinite, and montmorillonite preventing the change in interaction energy and followed the order: coal-quartz#coal-kaolinite#coal-montmorillonite. Using an SEM technique on the surface topography of coal, it was shown that the energy barrier between coal and montmorillonite rather than quartz and kaolinite was broken by the impeller rotation of 1800 r/min resulting in montmorillonite coating on the coarse coal surface. The coal cumulative yield for a flotation time 5 min was found to decline 2.94%, 5.74% and 47.99% in the presence of quartz, kaolinite, and montmorillonite, respectively, compared to that of only coal.

引用

页码：407 / 417

页数：11

共 50 条

[21] Coal flotation in the presence of humic acids
Lalvani, Shashi
Kang, Jaw-Ching
Fuel Science and Technology International, 1992, 10 (08): : 1291 - 1312
[22] Fe(III) as an activator for the flotation of spodumene, albite, and quartz minerals
Zhang Jie
Wang Weiqing
Liu Jing
Huang Yang
Feng Qiming
Zhao Hong
MINERALS ENGINEERING, 2014, 61 : 16 - 22
[23] Removal of Iron Minerals from Glass Quartz Sand by Flotation
S. I. Evdokimov
S. V. Galachieva
V. S. Puzin
V. S. Evdokimov
D. V. Tebloeva
Glass and Ceramics, 2015, 72 : 139 - 141
[24] Removal of Iron Minerals from Glass Quartz Sand by Flotation
Evdokimov, S. I.
Galachieva, S. V.
Puzin, V. S.
Evdokimov, V. S.
Tebloeva, D. V.
GLASS AND CERAMICS, 2015, 72 (3-4) : 139 - 141
[25] FLOTATION OF MANGANESE MINERALS AND QUARTZ BY SODIUM OLEATE AND WATER GLASS
Andrade, E. M.
Costa, B. L. C. M.
Alcantara, G. A. G.
Lima, R. M. F.
LATIN AMERICAN APPLIED RESEARCH, 2012, 42 (01) : 39 - 43
[26] Understanding different roles of lignosulfonate in dispersing clay minerals in coal flotation using deionised water and saline water
Liu, Di
Peng, Yongjun
FUEL, 2015, 142 : 235 - 242
[27] Associations of Gangue Minerals in Coal Flotation Tailing and Their Transportation Behaviors in the Flotation Process
Tian, Quanzhi
Wang, Hainan
Pan, Yinhai
ACS OMEGA, 2022, 7 (31): : 27542 - 27549
[28] THE EFFECT OF CLAY SLIMES ON COAL FLOTATION .1. THE NATURE OF THE CLAY
ARNOLD, BJ
APLAN, FF
INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 1986, 17 (3-4) : 225 - 242
[29] Hydrophobic flocculation flotation for beneficiating fine coal and minerals
Song, SX
Valdivieso, AL
SEPARATION SCIENCE AND TECHNOLOGY, 1998, 33 (08) : 1195 - 1212
[30] Role of clay minerals in UK coal combustion
Spears, DA
APPLIED CLAY SCIENCE, 2000, 16 (1-2) : 87 - 95

← 1 2 3 4 5 →