Recent developments in beneficiation of fine and ultra-fine coal-review paper

M Ramudzwagi, N Tshiongo-Makgwe… - Journal of cleaner …, 2020 - Elsevier
Generation of fines and ultra-fines is a concept that mining and metallurgical sectors can
never shy away since the beginning of coal exploration. These coal fines and ultra-fines are …

Investigation of collector mixtures on the flotation dynamics of low-rank coal

S Wang, Q Xia, F Xu - Fuel, 2022 - Elsevier
Here, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy
(XPS), flotation experiments, and low-rank coal (LRC) particle-bubble attachment …

[PDF][PDF] Elaboration of novel adsorbent from Moroccan oil shale using Plackett–Burman design

A Abourriche, H Hannache, M Oumam - Chem. Int, 2018 - researchgate.net
Metallurgical, chemical, ceramics, electro-galvanization, textile industrial waste effluents and
pollutants such as dyes and heavy metals reaches the aqueous sources and changes the …

Application of central composite design method to coal flotation: Modelling, optimization and verification

DO Aksoy, E Sagol - Fuel, 2016 - Elsevier
In this study, collector dosage, frother dosage, solid ratio and air flow rate that can be
effective parameters on the combustible recovery and ash content of clean coal and their …

Cleaning of high pyritic sulfur fine coal via flotation

E Sahinoglu - Advanced Powder Technology, 2018 - Elsevier
Large quantities of fine coal have been produced during mining and processing activities of
coals. Use of these fine coals after cleaning is important in terms of recovering of …

Application of Box–Behnken design and response surface methodology for modeling and optimization of batch flotation of coal

G Ye, L Ma, L Li, J Liu, S Yuan… - International Journal of …, 2020 - Taylor & Francis
The focus of this research is to explore the relationship between the response functions (ash
content and flotation perfect index [FPI]) and variables (collector dosage, frother dosage, and …

Maximizing REE enrichment by froth flotation of Alaskan coal using Box-Behnken design

T Gupta, T Ghosh, G Akdogan… - Mining, Metallurgy & …, 2019 - Springer
Rare earth elements (REEs) and their compounds are essential in a multitude of mundane
and sophisticated applications such as renewable energy technologies, catalysts, medicine …

[HTML][HTML] Plackett-Burman and Box-Wilson designs for the removal of mercury (II) by cypress pines and leaves, optimizing the surrounding conditions

O Larabi, A Amara-Rekkab, A Didi, MA Didi - Desalination and Water …, 2024 - Elsevier
In this study, the removal of Hg (II) from cypress leaves and cypress pines was examined.
Factors like time of contact (1–60 min), amount of biosorbent used (0.02–0.06 min), pH …

Comparative studies on the effect of mineral matter on physico-chemical properties, inherent moisture and drying kinetics of Chinese lignite

P Zhao, L Zhong, Y Zhao, Z Luo - Energy Conversion and Management, 2015 - Elsevier
The comparative study between the high-ash lignite (HAS) and low-ash lignite (LAS)
demonstrated great effects of mineral matter on physico-chemical properties, inherent …

Evaluation of combined lignite cleaning processes, flotation and microbial treatment, and its modelling by Box Behnken methodology

S Koca, DO Aksoy, A Cabuk, PA Celik, E Sagol… - Fuel, 2017 - Elsevier
In this study, first, the physicochemical cleaning of Cayirhan region's low-quality lignites was
investigated by flotation to reduce ash content. In the flotation experiments, the effects of …