Keskinkılıç, Ender
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Name Variants
Keskinkılıç, Ender
Ender, Keskinkilic
Keskinkilic, Ender
E., Keskinkilic
Ender, Keskinkılıç
Keskinkiliç E.
E.,Keskinkılıç
Keskinkılıç,E.
Keskinkilic E.
Keskinkilic, E.
E.,Keskinkilic
K., Ender
K.,Ender
E., Keskinkılıç
Keskinkilic,E.
Ender, Keskinkilic
Keskinkilic, Ender
E., Keskinkilic
Ender, Keskinkılıç
Keskinkiliç E.
E.,Keskinkılıç
Keskinkılıç,E.
Keskinkilic E.
Keskinkilic, E.
E.,Keskinkilic
K., Ender
K.,Ender
E., Keskinkılıç
Keskinkilic,E.
Job Title
Profesor Doktor
Email Address
ender.keskinkilic@atilim.edu.tr
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Scholarly Output
30
Articles
14
Citation Count
76
Supervised Theses
0
29 results
Scholarly Output Search Results
Now showing 1 - 10 of 29
Conference Object Citation Count: 1A study on the characterization of nickel laterites of central anatolia(Minerals, Metals and Materials Society, 2016) Keskinkılıç, Ender; Pournaderi,S.; Geveci,A.; Topkaya,Y.A.; Metallurgical and Materials EngineeringThere are mainly three commercial nickel laterites in Turkey: Gordes, Caldag and Sivrihisar. The first two appear in Western Anatolia. The third one, Sivrihisar (Yunusemre) laterites have been found in the first decade of the millennium, in the Central Anatolia region of Turkey. Since then, mining facilities have been continued in Yunusemre. Calcination, prereduction and smelting of Sivrihisar laterites have been extensively studied and published. In the current work, some results of the studies related to characterization of Sivrihisar laterites will be presented.Conference Object Citation Count: 0Pyrometallurgical Studies for Manganese Extraction Using Turkish Ore Reserves(Springer international Publishing Ag, 2017) Keskinkılıç, Ender; Metallurgical and Materials EngineeringPyrometallurgical studies conducted for Mn extraction using Turkish Mn-ore reserves were reviewed. Turkish Mn-ores are low-grade ones having similar to 30% Mn. The most important Mn ore reserves in Turkey are in the Denizli-Tavas region, where more than 2 million tons of proven reserves are reported. Mining rights to the Denizli-Tavas manganese belongs to Eregli Iron and Steel Works Co. (ERDEMIR). The ore is usually charged to the blast furnaces of ERDEMIR during hot metal production. So far, nearly 20 Master's thesis studies have been conducted for the analysis of manganese extraction in Turkey. In the scope of the present work, only pyrometallurgical and related activities (i.e. ore beneficiation, calcination, etc.) relevent to the treatment of a specific ore were examined.Conference Object Citation Count: 1A Study on Recovery of Iron from Red Mud by Solid State Reduction Followed by Magnetic Separation(Springer international Publishing Ag, 2020) Keskinkılıç, Ender; Keskinkilic, Ender; Varol, Mustafa; Topkaya, Yavuz A.; Geveci, Ahmet; Metallurgical and Materials EngineeringRed mud is a waste material of the Bayer process for alumina production from bauxite ore. Red mud is generally pumped to disposal in an artificial pond which is accompanied by great land occupation and environmental issues. Many researches in different fields have been carried out to evaluate the red mud. Of these, researches on recovering valuable metals from red mud are the most successful. In this study, recovery of iron, which is the most abundant metal in red mud, was investigated. A red mud sample with 34% Fe2O3 was used. Solid state carbothermic reduction followed by wet magnetic separation was performed to recover iron. Reduction was carried out at temperatures 1000-1200 degrees C. Reduced samples were ground and subjected to wet magnetic separation. The effect of reduction temperature and grinding time were investigated on the metallization of iron and the iron content of the final concentrate.Article Citation Count: 16Calcination characteristics of laterite ores from the central region of Anatolia(Southern African inst Mining Metallurgy, 2012) Keskinkılıç, Ender; Pournaderi, S.; Geveci, A.; Topkaya, Y. A.; Metallurgical and Materials EngineeringDrying, calcination, prereduction, and smelting are the main steps in conventional crude ferronickel production. Industrially, these steps are conducted using the rotary kiln-electric arc furnace (RKEF) process. In this paper, calcination characteristics of Sivrihisar laterite ores from the Central Anatolia region are investigated. The extent of elimination of chemically bound water and other volatiles was studied by experiments conducted at various temperatures in the 250-800 degrees C range. Phase changes were examined using X-ray diffractometry. For the particle size used in the study, 300 degrees C was determined to be almost sufficient for complete transformation of goethite to haematite, and 700 degrees C was required for effective elimination of all volatiles in the ore.Conference Object Citation Count: 0A Statistical Analysis of Process Abnormalities in Slab Casting(Springer international Publishing Ag, 2018) Keskinkılıç, Ender; Metallurgical and Materials EngineeringContinuous casting of slabs is conducted with two successive steel flows: first from ladle to tundish, then from tundish to mold. There are certain process abnormalities related to ladle, tundish and mold. For example, change of submerged entry nozzle (SEN) is the one encountered during steel flow from tundish to mold. Tundish exchange is the abnormality taking place due to replacement of processed tundish with the new one at rest. Another example is the flow of steel from ladle to tundish without a ladle shroud. In this study, a statistical analysis was conducted related to the process abnormalities in slab casters of a steel plant. Slab surface defects observed in slab yard was incorporated in this analysis.Conference Object Citation Count: 2Solid-State Reduction Studies for Recovery of Iron from Red Mud(Springer international Publishing Ag, 2020) Keskinkılıç, Ender; Pournaderi, Saeid; Geveci, Ahmet; Topkaya, Yavuz A.; Metallurgical and Materials EngineeringRed mud or bauxite residue can be regarded as a by-product of aluminum extraction process since it contains a significant amount of iron and some valuable elements. Therefore, the treatment of red mud has been a hot topic for some decades. Last year, the authors started a laboratory-scale project dealing with stepwise recovery of valuable elements from red mud of Seydisehir Aluminum Plant, Turkey. The first step is related to the recovery of iron and pyrometallurgical methods (solid-state reduction and smelting) are currently being performed. Nonferrous metals will then be selectively leached in the second step. In TMS 2019, the authors outlined the literature related to the smelting studies for iron recovery from bauxite residue. In the extent of the present work, a literature review relevant to the solid-state reduction studies for recovery of iron from red mud was presented.Conference Object Citation Count: 0A statistical analysis of process abnormalities in slab casting(Springer International Publishing, 2018) Keskinkılıç, Ender; Metallurgical and Materials EngineeringContinuous casting of slabs is conducted with two successive steel flows: first from ladle to tundish, then from tundish to mold. There are certain process abnormalities related to ladle, tundish and mold. For example, change of submerged entry nozzle (SEN) is the one encountered during steel flow from tundish to mold. Tundish exchange is the abnormality taking place due to replacement of processed tundish with the new one at rest. Another example is the flow of steel from ladle to tundish without a ladle shroud. In this study, a statistical analysis was conducted related to the process abnormalities in slab casters of a steel plant. Slab surface defects observed in slab yard was incorporated in this analysis. © 2018, The Minerals, Metals & Materials Society.Article Citation Count: 11Reducibility of nickeliferous limonitic laterite ore from Central Anatolia(Taylor & Francis Ltd, 2014) Keskinkılıç, Ender; Keskinkilic, E.; Geveci, A.; Topkaya, Y. A.; Metallurgical and Materials EngineeringLimonitic nickel laterite from Sivrihisar reserve in Turkey was reduced at 700-1100 degrees C by the addition of 5.74, 8.61 and 11.48 wt-% coal under an argon atmosphere. The run-of-mine ore and the reduced samples were studied using X-ray diffraction. The metallisation of Fe was found to be limited up to 900 degrees C, but increased rapidly at higher temperatures. The metallisation of Ni and Co increased when the temperature was increased from 700 to 800 degrees C, almost levelled off up to 900 degrees C and then increased up to 1100 degrees C. The results also showed that increased coal additions did not affect Fe metallisation up to 900 degrees C. At 1000 degrees C the metallisation of Fe became slightly better, but its effect was more pronounced at 1100 degrees C. The increased coal addition affected the nickel reduction equally at all temperatures, while it had no effect on the metallisation of Co.Article Citation Count: 2Recovery of Iron from Turkish and Iranian Red Muds(Springer, 2022) Keskinkılıç, Ender; Keskinkilic, Ender; Topkaya, Yavuz A.; Geveci, Ahmet; Metallurgical and Materials EngineeringTurkish and Iranian red mud samples of different composition and mineralogy were processed by solid-state reduction followed by wet magnetic separation and smelting, two commonly used pyrometallurgical methods for iron recovery. The application of these two methods on the same samples allowed them to be compared thoroughly and to be examined for versatility. The results showed that it was possible to recover more than 90% of iron using both methods. However, the concentrate obtained by the first method contained a significant amount of undesirable oxides. Thus, large proportions (similar to 30%) of valuable elements that are planned to be recovered by hydrometallurgical methods were removed together with the iron. The smelting method, on the other hand, made it possible to recover the iron with high efficiency and as a marketable purity Fe-C alloy. The metal obtained by smelting contained 96% iron, 2% carbon, and a small amount of impurities like Si, Ti, and Na.Article Citation Count: 14Calcination characteristics of laterite ores from the central region of Anatolia(2012) Keskinkılıç, Ender; Pournaderi,S.; Geveci,A.; Topkaya,Y.A.; Metallurgical and Materials EngineeringDrying, calcination, prereduction, and smelting are the main steps in conventional crude ferronickel production. Industrially, these steps are conducted using the rotary kiln-electric arc furnace (RKEF) process. In this paper, calcination characteristics of Sivrihisar laterite ores from the Central Anatolia region are investigated. The extent of elimination of chemically bound water and other volatiles was studied by experiments conducted at various temperatures in the 250-800°C range. Phase changes were examined using X-ray diffractometry. For the particle size used in the study, 300°C was determined to be almost sufficient for complete transformation of goethite to haematite, and 700°C was required for effective elimination of all volatiles in the ore. © The Southern African Institute of Mining and Metallurgy, 2012.
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