Coal and Coke Industries Research

An integrated pyro-hydrometallurgical technology for the processing of pyrite-cobalt concentrates has been developed based on sodium carbonate-carbon reductive smelting followed by aqueous treatment of the slag-matte melt. Thermodynamic modeling of the Fe-Ni-Co-Cu-O-S system demonstrated that at 1450-1500 °C the Na₂CO…

Coke is a porous substance with a high carbon concentration. During the production of coke, wastewater containing harmful organic and inorganic pollutants is generated. When the coking wastewater is discharged into a water body without treatment, it increases toxicity, lowers DO, settles suspended particulates, elevat…

In the body of this study, ash content, moisture content and calorific values data obtained from various power plants are investigated and a calorific value prediction tool for the Turkish lignites on the basis of statistical methods was proposed. Statistical evaluations were carried out either with single linear regr…

• ERDAL KARA
• SERDAR YILMAZ
• MEHMET BİLEN

This study investigates the flotation performance of di(2-ethylhexyl) phosphoric acid (DEHPA) as an organic collector and optimizes key operating parameters using response surface methodology (RSM) for the flotation of Çorum/İskilip lignite from Türkiye. Preliminary flotation experiments were conducted using conventio…

• ÖZLEM KAYA

Direct combustion of coal produces high amount of SOx compounds and it has many negative environmental impacts. Hence, desulphurization process of coal has very important role for environmental perspective. The present work investigated optimization of leaching parameters for the desulfurization of Kütahya/Gediz ligni…

• MENDERES LEVENT

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• MENDERES LEVENT
• KADİR GÜNDOĞAN

This manuscript consists of two parts. In the first part, oil agglomeration experiments were carried out to enrich the lignite coal sample obtained from Tunçbilek underground mine using 4 different binding oils such as kerosene, mineral oil, diesel oil and vegetable waste oil. The experimental parameters such as pH, s…

• TEVFİK AĞAÇAYAK

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This study investigated the enrichment of high‐ash bituminous coal by aggloflotation technique implemented within a new designed experimental cell. At the same time, this paper aimed to introduce the newly designed aggloflotation cell. This novel cell uniquely integrates the agglomeration and flotation processes into…

During low temperature oxidation of coals, due to half reaction of carbon with oxygen, concentration of CO is readily being increased and it is monitored by the field operators via gas detectors. In this study, low temperature oxidation tests were carried out for 26 samples, which were collected from Zonguldak hardcoa…

• MEHMET BİLEN

This study investigated the performance of aggloflotation, a novel hybrid process that combines oil agglomeration and flotation, for the beneficiation of lignite coal from Sivas/Gemerek, Türkiye. The effects of critical process parameters, including depressant (sodium silicate) dosage, collector (kerosene) dosage, fro…

• ÖZLEM KAYA