Keskinkılıç, Ender
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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
Main Affiliation
Metallurgical and Materials Engineering
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ORCID ID
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Turkish CoHE Profile ID
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WoS Researcher ID
Sustainable Development Goals
1NO POVERTY
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2ZERO HUNGER
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3GOOD HEALTH AND WELL-BEING
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
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7AFFORDABLE AND CLEAN ENERGY
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8DECENT WORK AND ECONOMIC GROWTH
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
2
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10REDUCED INEQUALITIES
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11SUSTAINABLE CITIES AND COMMUNITIES
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
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13CLIMATE ACTION
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14LIFE BELOW WATER
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15LIFE ON LAND
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
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17PARTNERSHIPS FOR THE GOALS
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Documents
31
Citations
158
h-index
5
Documents
24
Citations
127
Scholarly Output
30
Articles
13
Views / Downloads
99/0
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
120
Scopus Citation Count
152
Patents
0
Projects
0
WoS Citations per Publication
4.00
Scopus Citations per Publication
5.07
Open Access Source
6
Supervised Theses
0
| Journal | Count |
|---|---|
| Journal of the Southern African Institute of Mining and Metallurgy | 4 |
| Journal of Mining and Metallurgy, Section B: Metallurgy | 3 |
| 11th International Symposium on High-Temperature Metallurgical Processing -- FEB 23-27, 2020 -- San Diego, CA | 2 |
| Minerals, Metals and Materials Series | 2 |
| 4th International Symposium on High-Temperature Metallurgical Processing held during the 142nd TMS Annual Meeting and Exhibition -- MAR 03-07, 2013 -- San Antonio, TX | 1 |
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Now showing 1 - 10 of 12
Article Citation - WoS: 4Citation - Scopus: 5Reduction Behavior of Iron in the Red Mud(Technical Faculty, Bor-serbia, 2021) Eray, S.; Keskinkilic, E.; Topkaya, Y. A.; Geveci, A.Red mud or bauxite residue contains significant quantities of industrial metals such as Fe, Al, and Ti, as well as rare earth elements such as Sc, Ce, and La. The authors performed a laboratory-scale project dealing with stepwise recovery of valuable elements from two bauxite residues, namely Iranian red mud (IRM) and Turkish red mud (TRM). The first stage involved the recovery of iron which was present in large quantities in red mud. Two different methods were investigated for this purpose: 1) solid state reduction followed by wet magnetic separation and 2) smelting. In the scope of this paper, some results of pyrometallurgical part of this project are presented. According to solid-state reduction experiments, it was found that more excess coal was needed for IRM (35%) than for TRM (15%) to maximize iron reduction. Temperature had significant effect on the reduction process and metallization increased from about 70% to about 95% when the temperature was raised from 1000 to 1200 degrees C. Metallization degree was reported to be slightly higher for IRM (96.2%) than for TRM (94.1%). The results demonstrated that a high degree of iron metallization can be achieved regardless of the chemical and mineralogical composition of the bauxite residue sample.Article Citation - WoS: 17Citation - Scopus: 17Calcination Characteristics of Laterite Ores From the Central Region of Anatolia(Southern African inst Mining Metallurgy, 2012) Keskinkilic, E.; 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.Article Citation - WoS: 2Citation - Scopus: 2Use of Colemanite in Ferronickel Smelting(Technical Faculty, Bor-serbia, 2019) Keskinkilic, E.; Pournaderi, S.; Geveci, A.; Topkaya, Y. A.Use of colemanite in metal-slag systems aims primarily to decrease the viscosity of slag and, therefore, achieve better metal-slag separation. Enhanced metal-slag separation is helpful to decrease the number of suspended metal/alloy droplets in slag, i.e. the physical losses. In the literature, successful use of colemanite was reported both in steelmaking and copper matte smelting processes. Ferronickel smelting slags contain nickel in the range of 0.1-0.2% and correspondingly, metal-slag distribution ratio values of nickel are reported even above 200. On the contrary, nickel recoveries are hard to exceed 95%. This can be mostly attributed to the physical losses of nickel due to very high slag volume in ferronickel smelters; for 1 ton of ferronickel, 10-15 tonnes of slag are generated regardless of the type of the laterite, which contains significant quantity of ,gangue components. The authors thought that use of colemanite could be a solution to decrease physical losses. Therefore, the use of colemanite in ferronickel smelting was investigated in the present work. Laboratory-scale smelting experiments were conducted using calcined and prereduced laterites in a vertical tube furnace under different gas atmospheres. The amount of colemanite added was in the range of 0 - 2.5% of the total charge. The experiments were also performed using ferronickel and slag samples obtained from a ferronickel smelter.Article Variations in Chemical Composition of Some Steels During Continuous Casting(Springer, 2012) Keskinkilic, E.In this study, chemical composition variations of some steels during continuous casting were investigated in Eregli Iron and Steel Works Co. (ERDEMIR), Turkey. Final chemical analysis of a heat is determined in the continuous casting stage. Three steel specimens are regularly taken from the mould at certain meters of slab strand for each heat. The aim of this work was to evaluate the extent of changes in chemical analysis along the slab strand. Consequently, the leading aim of this study was to determine whether the number of specimens taken for each heat could be decreased without compromising quality control of the continuous casting. This was accomplished for some low-carbon, ultra-low carbon, and structural steels, which constitute the majority part of the ERDEMIR product range. The results revealed that the number of specimens could only be decreased for a limited number of steels and under certain circumstances.Article Citation - WoS: 9Citation - Scopus: 11Reducibility of Nickeliferous Limonitic Laterite Ore From Central Anatolia(Taylor & Francis Ltd, 2014) Pournaderi, S.; Keskinkilic, E.; Geveci, A.; Topkaya, Y. A.Limonitic 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 - WoS: 6Citation - Scopus: 7Recovery of Iron From Turkish and Iranian Red Muds(Springer, 2022) Eray, Said; Keskinkilic, Ender; Topkaya, Yavuz A.; Geveci, AhmetTurkish 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 Liquid Processing of Silicon Steels Using the Converter-Ladle Furnace-Circulation Degasser Route(Southern African inst Mining Metallurgy, 2019) Keskinkilic, E.Electrical steels are used in motors, power generators, and transformers for electrical applications owing to their superior magnetic properties. These properties are attributed to the presence of a significant amount of silicon in the steel composition. Silicon steels are mainly grouped into two categories: grain-oriented (GO) and non-grain-oriented (NGO). The Si content of silicon steels is generally between about 0.50% and 6.5%. Therefore, silicon steels are further classified as low-, medium-, and high-Si steels. In this paper, liquid steel processing practices for certain silicon steel grades are outlined by considering a steelmaking company that integrates a basic oxygen furnace (BOF), a ladle furnace (LF), and an RH-type degassing unit (RH). Possible problems are identified, suggestions are discussed, and conclusions are drawn on the basis of real plant data.Article TÜRKİYE’DE METALURJİ VE MALZEME MÜHENDİSLİĞİ EĞİTİMİNE BAKIŞ, 2015(Bilim ve Teknoloji, 2015) Keskinkılıç, EnderTürkiye’de üniversitelerde ilk Metalurji Mühendisliği eğitimi, İstanbul Teknik Üniversitesi’nde başlamıştır. İstanbul Teknik Üniversitesi Maden Fakültesi’nde 1957 yılında Üretim Metalurjisi ve Fiziksel Metalurji kürsülerinin kurulmasıyla başlayan Metalurji eğitimi, 1961-62 akademik yılında Metalurji Bölümü’nün açılmasıyla mühendislik eğitimi yapan bir bölüm olarak kurumsallaşmıştır [1]. Orta Doğu Teknik Üniversitesi Makina Mühendisliği’nden 1966 yılında ayrılarak kurulan Metalurji Mühendisliği Bölümü, Türkiye’de Metalurji Mühendisliği eğitiminde bir diğer kilometre taşı olarak karşımıza çıkmaktadır [2]. Takip eden yıllarda, çeşitli üniversitelerde de açılan Metalurji Mühendisliği Bölümleri ile doksanlı yılların ortalarına kadar metalurji eğitimi devam ettirilegelmiş, metal dışı malzemelerin sektörde önem kazanmasına paralel olarak Metalurji Mühendisliği branşının adı Metalurji ve Malzeme Mühendisliği’ne evrilmiştir. Doksanlı yıllarda karşımıza çıkan bu isim değişikliğinin sonrasında Türkiye’de pek çok üniversite “Metalurji ve Malzeme Mühendisliği” ismiyle programlar açmaya başlamıştır. 50 yılı aşkın süredir devam eden Metalurji ve Malzeme Mühendisliği eğitimine katkı sunan üniversite sayısı, 2015 yılı itibarıyla 49’u bulmuştur [3]. Söz konusu rakam, Türkiye’deki toplam üniversite sayısının 193 olduğu düşünüldüğünde oldukça önemlidir.Article Citation - WoS: 4Citation - Scopus: 5NEW TRENDS IN BASIC OXYGEN FURNACE DEPHOSPHORIZATION(Technical Faculty, Bor-serbia, 2020) Keskinkilic, E.Except for special grades of steel where it is used as an alloying element, phosphorus is regarded as an impurity that must be removed. Considering the conventional integrated iron and steelmaking, there are primarily two processes for phosphorus removal. The first is a hot metal dephosphorization (DeP) process that is applied to a blast furnace for hot metal before the steelmaking process. The second is the basic oxygen furnace steelmaking (BOS), a unique method primarily used for steelmaking, with the exception of stainless steels. Hot metal phosphorus content has a direct impact on BOS. An increase of phosphorus in hot metal is mainly related to the use of high P2O5 containing iron ores. In the current literature review, new trends of phosphorus removal in converter steelmaking are outlined. The double-slag practice was reported to be successful when hot metal P content was larger than 0.100%. It was indicated that the tapping temperature was critical for the production of low-phosphorus grades for which maximum allowable P content was 0.007% and that high tapping temperatures should be avoided. The tap-to-tap time for the double-slag process was slightly longer than the conventional converter steelmaking. It was further reported that the double-slag practice would be more economical than an establishment of a separate hot metal dephosphorization unit, if low-phosphorus grades did not have a significant share in the product mix of a steelmaking company. Endpoint phosphorus prediction was one of the important recent trends of converter steelmaking. A mixed injection of CO2-O-2 to a basic oxygen furnace was applied to enhance dephosphorization, and promising results were reported. Unfortunately, a successful process for recycling of BOS dephosphorization slag has not been reported yet.Article DÜNYA ve TÜRKİYE ÇELİK ÜRETİMİNE GENEL BİR BAKIŞ(Herkese Bilim Teknoloji, 2017) Keskinkılıç, Ender2011 yılında Dünya çelik üretimi sıralamasında 10. konumda olan Türkiye, 2012 yılında gerçekleştirdiği 36 milyon tona yakın üretimle Ukrayna ve Brezilya’yı geride bırakarak 8.’liğe yükselmiş, sonraki yıllarda yaşanan kademeli düşüşlerin ardından 2015 yılındaki ciddi düşüşle birlikte 31,5 milyon tona gerilemiştir. 2016 yılındaki hatırı sayılır artışla 33,2 milyon tona yükselen ve Dünya sıralamasında 8.’liğini koruyan Türkiye çelik üretiminin, yeniden ivmelenen yassı çelik üretimiyle birlikte 2017 yılında da artışına devam edeceği öngörülmektedir.
