OOIR: Observatory of International Research

Papers

(The TQCC of International Journal of Coal Preparation and Utilization is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-01-01 to 2025-01-01.)

Article	Citations
Role of capillary pressure on carbon dioxide sequestration: mathematical analysis	31
A characterization of rare earth elements in coal ash generated during the utilization of Australian coals	24
Evolution of coal flocs during flocculation under different stirring velocities	22
An integrated method for massive production of graphene from bituminous coal via ultrasonication-assisted emulsion formation	22
Flotation behavior of metallurgical coals from different seams under electrolytic process water	22
Study on the separation of lithotypes and their properties: A case study in the Permian period coal of the Dahebian coal mine, Liupanshui coalfield, China	21
Investigations of coal beneficiation by using choline chloride and urea-based deep eutectic solvent	18
Investigation on pH influence for the effective transportation of coal water slurry using experimental design	17
Facile application of used engine oil in high sulfur coal briquetting to reduce the hazardous emission gases	16
Alkali leaching in dissolved oxygen for efficient desulphurization of low-grade Lakhra coal	16
Optimization of extrinsic parameters for beneficiation of coal with the help of Cronobacter sp	15
An experimental investigation of early warning index for coal spontaneous combustion with consideration of particle size: a case study	15
Synthesis and kinetic analysis of zeolites based on fly ash	15
New approach to evaluate the wettability of low-rank coal powders based on multiple light scattering	14
Numerical modelling of two-phase flow hydrodynamics of column flotation - validation against ERT data	14
Study on the impact of APAM residue on the settlement characteristics of coal slurry agglomerates	14
Coal biotransformations under aerobic conditions: screening and characterization of potential biocatalysts	14
Application of suitable methodology for control of coal fire according to its magnitude in hot strata blast-holes–an approach	13
Experimental analysis of vibratory screener efficiency based on density variation for screening coal and iron ore	12
Targeting ash generated from coal combustion as secondary source of rare earth elements	12
Synergistic Effect of Polar Group Containing Collectors and Synthesized Frother on Flotation Performance of Oxidized Coal	12
An efficient method for recognition of coal/gangue with thermal imaging technique	12
Evaluation of single particle drying characteristics using drying models and curve fitting	12
Preparation of formed-coke using devolatilized inferior coal and its mechanical properties	11
Optimizing ash content detection and prediction in flotation tailings using a new approach to enhance feature extraction and deep learning algorithms	10

Recovery of clean coking coal from difficult-to-wash low volatile coking coal fines of Jharia coalfield by multi gravity separator	10
Assessment of coal sortability and washability using dual energy X-ray transmission system	10
Detecting coal-carrying rate in gangue based on binocular machine vision and particle queuing method	10
Formation of pyrite in the process of fine coal desulfurization by microwave enhanced magnetic separation	10
An identification and positioning method for coal gangue based on lightweight mixed domain attention	10
Study on microscopic pores and permeability changes of coal frozen by liquid nitrogen based on CT scanning	10
Role of collector polarity and size on the low-rank fine coal flotation	10
Natural gums as a novel, potent, and natural additive towards coke making: a preliminary feasibility study	8
Evolution and mechanisms of low-temperature oxidation and coal–oxygen coupling processes of a specific low-rank bituminous coal with various microscale particle sizes	8
Pyrolysis characterization and kinetic analysis of typical coals in western China: effects of coal type, particle size and heating rate	8
Optimization of hydrogen peroxyl-citric acid system for sulfur removal from high sulfur bituminous coal by response surface method and its mechanism	8
Effect of scrubbing medium’s particle size distribution and scrubbing time on scrubbing flotation performance and entrainment of microcrystalline graphite	8
The effects of the height-to-width ratio of the rectangular inlet on the flow field and separation performance by hydrocyclone	8
Drying kinetics and upgrading characteristics analysis of Zhaotong lignite with microwave deep drying	8
Mechanism of enhanced microfine low-rank coal flotation by jet slurry conditioning	7
Comparison of the prediction performance of separating coal in separation equipment using machine learning based cubic regression modelling and cascade neural network modelling	7
Effects of composite structures on internal flow field and particle classification performance of hydrocyclone	7
Investigation of the interference between organic and mineral matter in coal and carbonaceous shale using FTIR spectroscopy	7
Extraction of lithium from coal gangue by a roasting-leaching process	7
Preparation of high concentration coal water slurry with good fluidity based on preferentially modified ultrafine particle under three-peak grading	7
Study on deashing and desulphurization of coal with heavy medium in enhanced gravity field	7
Investigation of removal of ash and sulfur from Kangal (Sivas/Turkey) lignite with the application of combined methods	7
Influence mechanism of small molecular organics on the wettability of coal	7
Image-based rock mixing ratio estimation by using illuminance analysis in underground mining	7
Effects of rotary triboelectrification technology on macerals separation for low-rank coal	7
Methods for obtaining humate-containing fertilizers from brown coal	7
Determination of washability characteristics of anthracite coal by index of washability and near gravity material index – a case study	7
Lightweight detection method of coal gangue based on multispectral and improved YOLOv5s	7
Research on the process of coal’s pores and fissures splitting during liquid nitrogen freeze-thaw action	7
Composition and structural properties of coal gasification fine slag and its classified products – a case study	6
Mechanisms of roasting for improving rare earth element leaching from coal gangue	6
Prediction of gross calorific value as a function of proximate parameters for Jharia and Raniganj coal using machine learning based regression methods	6
Hyper-coal as Binder for Coking: —Macroscopic Caking Property, Microstructure Basis and Extraction Temperature Optimization Index	6
Formation path and kinetics of caking components from modified lignite in subcritical H ₂ O–CO system	6
Drying Characteristics and Kinetics Behavior of Indian Coal Slurries Using Natural Draft Tray Dryer	6
Experimental study on the influence of external factors on image features of coal and gangue	6
Kinetics of bubble interaction with low rank coal surface in the presence of adsorbed dodecane-oleic acid collector mixture	6
Study on matching of dispersant for high concentration and high stability slurry from Shenhua nonstick coal	6
Effect of different mass proportions of fine slime on the flotation performance of coal	6
Product quality prediction in dense medium coal preparation process based on recurrent neural network	6
Co-gasification of coal and biomass: synergistic effects on gasification reactivity induced by inherent organic components	5
Heat and mass transfer analysis of coal coking process in the coking chamber	5
Resource and recycling: a comprehensive review of India’s coal landscape, characterization, and the current to future potential of fly ash from thermal power plants	5
Processing of low-grade Indian coking coal using air fluidized dense medium bed separator and flotation technique	5
Novel evaluation index for assessing the flotation performance of oily collectors in coal processing	5
Data-driven computational approaches to estimate gross calorific value of coal using proximate and ultimate analyses	5
SHAP-based interpretation of an XGBoost model in the prediction of grindability of coals and their blends	5
Detection of coal gangue based on spectral technology and enhanced lightweight YOLOv7-tiny	5
Study on the differential effects of various hydrocarbon oil components on coal slime flotation performance	5
Synergistic enhancement of dewatering of montmorillonite-containing coal slime by novel combined filter aid: an experimental and simulation study	5

Comparative investigation of spontaneous combustion of biomass, hydrochar, coal and their blends using Wits-Ehac and thermogravimetric analysis	5
A high accuracy detection method for coal and gangue with S3DD-YOLOv8	5
Selective flotation of coal from kaolin using sodium polyacrylate as flocculant and depressant	5
Study on the effect of chemical inhibitors on CO₂ adsorption in coal	4
Design development of coal-based fly ash geopolymer brick using orthogonal array design of experiment	4
Comparison and selection of flotation processes for the separation of fine and difficult-to-float coal particles	4
Influence of taper angle on the inner field and separation performance of a hydrocyclone	4
Regression modeling and residual analysis of screening coal in screening machine	4
Modeling of coal and gangue volume based on shape clustering and image analysis	4
CO ₂ sequestration and CH ₄ extraction from unmineable coal seams in Singrauli coalfield	4
Occurrence, mobility, leaching, and recovery of rare earth elements and trace elements in Sohagpur Coalfield, Madhya Pradesh, India	4
Graphitization of anthracite catalyzed by single metal oxides and its enhanced electrical conductivity	4
Studies on increased utilization of high-ash Indian coal in coke-making	4
Surface properties of oxidized lignite and its application in congo red dye adsorption	4
Following performance of solid particle and liquid phases inside a hydrocyclone	4
Numerical simulation and optimization of the multi-stage air/gas supply system in a coke oven battery with 7.1 m coking chambers	4
Effective recovery of bitumen from Jordanian tar sand using several extraction methods	4
Coal free-swelling index modeling by an ordinal-based soft computing approach	4
Coupling mechanism of trace elements and maceral in medium and high sulphur coal in the Jurassic terrestrial environment of Zhongyuan mine in the Hengshan mining area and adjacent areas	4
Dielectric properties of organic sulfur components and application in coal microwave desulfurization	4
A comparative study on the industrial flotation performance of fine coal using conventional and turbulent microbubble mechanical flotation cells	4
Differences in humic acid structure extracted from different types of peat	3
Shape selection recognition and scattering distribution prediction of adhesion targets in multi-scale dual-energy X-ray images of coal and gangue	3
Effect of dilute acid on fulvic acid extracted from lignite	3
Mechanism of interaction between mixed collectors and low-rank coal: An experimental and simulation study	3
Mechanism of sulfur removal from high sulfur coal by visible light assisted oxidation system	3
On the separation mechanism of high vibration frequency compound dry separator and multi-parameter optimization	3
Investigation of co-combustion characteristics of olive bagasse, coal and their respective blends by thermogravimetric analysis (TGA)	3
Assessment on durability of lightweight concrete using alkali modified fly ash based atrificial coarse aggregate (FACA)	3
Upgrading of low-grade lignite using the multi-layer reverse cross-flow drying bed	3
A novel coal quality index and its estimation using diffuse reflectance spectroscopy	3
Eco-sustainable alkali activated brick using municipal incinerated ash	3
Flotation and oil agglomeration of high ash LVMC coal after deshaling by jigging: a comparative study using different collectors	3
Recognition of coal and gangue under low illumination based on SG-YOLO model	3
Exploration on performance of the oxidized collector in the low-rank coal flotation	3
Carbon-dioxide capture, storage and conversion techniques in different sectors – a case study	3
Experimental and numerical study on multiphase fluid dynamics of coal and blends with biomass (sugarcane bagasse) in a lab-scale full-loop circulating fluidized bed gasifier	3
Product specification and economic benefit maximization prediction model of a coal preparation plant in Datong, Shanxi	3
On the spontaneous combustion liability of South African coal: a report	3
Beneficiation of difficult-to-wash Indian low volatile coking coal fines by Falcon concentrator	3
Study of the flow characteristics of the dense bed and its enhancing effect on coal particles separation by CFD-DEM applied in Teeter bed separator	3
Modelling and comparison of fine coal beneficiation with water-only cyclone and spiral	3
A data expansion strategy for improving coal-gangue detection	3
Artificial neural network modeling for predicting the screening efficiency of coal with varying moisture content in the vibrating screen	3
Flue gas purification from SO2 and NOx using molten mixture of alkali metal carbonates	3
Usage of coke dry quenching dust to improve coke mean size	3
Superfine coal powder modified by amorphous silica and its high reinforcing performance in styrene butadiene rubber	3
Flotation behavior and kinetic characteristics of trace elements in coal	3
Fragmentation energy calculation model of coal crushed by impact load	3
Research of coal and gangue identification and positioning method at mobile device	3
Separation performance of –0.5 mm fine coal in enhanced gravity field before and after desliming	3
Improvement of coke strength by HDPE addition	3
Study on dissociation characteristics and enhanced gravity separation of coking coal middlings	3
Analysis of temperature rise of low temperature adiabatic oxidation of sulfur-containing “coal-like substances”	3
Synergistic effect of SPS compound surfactant and diesel oil on low-rank coal slime flotation	3
Performance characteristics of 76 mm dense medium cyclone to wash high ash high NGM coal	3
Research on concentration dosing control based on the ISSA-LSTM model and dynamic concentration detection	3
Ultrasonic extraction of oil shale bitumen and study of its structural features using GC-MS and NMR techniques	3
Assessment and characterization of waste material used as backfilling in an abandoned mine	3
Optimization of porous carbons for methane adsorption from South African coal wastes	3
Extraction of clean coal from washery rejects and its effect on coking properties: an approach toward sustainable development	3
Experimental analysis of coal gangue identification using visible-near infrared spectroscopy under different working conditions with local and global model	3
Coal characterization and occurrence of rare earth elements in coal and coal-ash of Sohagpur Coalfield, Madhya Pradesh, India	3