GRAIN SIZE ANALYSIS OF KARABURHAN BANDED CHROMITE ORE PRIOR TO COMMINUTION
Year 2007,
Issue: 014, 87 - 96, 17.12.2007
Adem Taşdemir
,
Rifat Bozkurt
Abstract
In this study, it is aimed to evaluate grain size distribution prior to comminution by image analysis. The samples
belonging to Eskişehir Karaburhan chromite ore were examinated by Leco 2001 image analyzer. Mean Feret
diameters of chromite grains which show lognormal distribution was measured and various derived mean diameters
and their grain size distributions were determined. Number geometric mean (lnxN) geometric standard deviation
(lnxσ) were found as 3.729 ln μm and 0.993 ln μm respectively. Number-length (xNL) mean diameter and its d80 size
were determined as 68.2 μm and 157 μm respectively by using relationship between number mean sizes. Numbervolume
(mass) mean diameter (xNV) and its d80 size were calculated as 183 μm and 421 μm respectively.
References
- [1] Allen, T. Particle size measurement, Powder Technology Series (Third edition), Chapman and Hall Ltd.,London, (1981).
- [2] Allen, T., Particle size measurement, Volume 1, Powder sampling and particle size measurement, Powder Technology Series, Chapman and Hall, (1997).
- [3] Bayazıt, T. ve Oğuz, D., Mühendisler İçin İstatistik, İstanbul Teknik Üniversitesi, İnşaat Fakültesi, İstanbul, (1985).
- [4] Crampton, C., The Industrial Value of High Sensitivity Particle Image Analysis, Powder Metallurgy, Volume 48, No.4, pp. 306-308,(2005).
- [5] Engin, T., Türkiye’de Krom Madenciliği Sorunları, TMMOB Jeoloji Müh. Odası Yayınları, Ankara, (1981).
- [6] Jones, M. P., Applied Mineralogy, A Quantitative Approach, Mineral Resources Engineering Department, Imperial Collage, London, (1987).
- [7] Kulaksız, S., Sivrihisar Kuzey-Batı Yöresinin Jeolojisi, Yerbilimleri Enstitüsü, Hacettepe Üniversitesi, Ankara, (1981).
- [8] Leco 2001 Image Analysis System Operator’s Manual, (1992).
- [9] Petruk, W., Automatic Image Analysis for Mineral Benefication, Journal of Metals, 40, 4, 29-31, (1988a).
- [10] Petruk, W., The Capabilities of The Microprope Kontron Image Analysis System: Application to Mineral Benefication, Scanning Microscopy, 2, 3, 1247-1256, (1988b).
- [11] Petruk, W., Ore Characteristics That Affect Breakage and Mineral Liberation During Grinding, Process Mineralogy, Edited by D.J.T. Carson and A.H. Vassiliou, The Minerals, Metals & Materials Society, (1988c).
- [12] Petruk, W., Short Course on Image Analysis Applied to Mineral and Earth Sciences, Mineralogical Association of Canada, Ottowa, pp. 86-89, (1989).
- [13] Svarovsky, L., Solid-Liquid Separation, Second Edition, Butterworths Monographs in Chemistry and Chemical Engineering, (1981).
- [14] Taşdemir, A., Görüntü Analizi İle Zenginleştirme Öncesi Tane Boyut Analizi, Osmangazi Üniversitesi Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, (1996).
KARABURHAN BANTLI KROMİT CEVHERİNİN UFALAMA ÖNCESİ TANE BOYUT ANALİZİ
Year 2007,
Issue: 014, 87 - 96, 17.12.2007
Adem Taşdemir
,
Rifat Bozkurt
Abstract
Bu çalışmada, görüntü analiziyle ufalama öncesi tane boyutu ve dağılımının belirlenmesi amaçlanmıştır. Eskişehir
Karaburhan bantlı kromit cevherine ait parlak kesitler, Leco 2001 görüntü analizörüyle incelenmiştir. Lognormal
dağılım gösteren kromit tanelerinin ortalama Feret çapları ölçülmüş ve ufalanmamış cevherde kromit tanelerinin
çeşitli ortalama çapları ve dağılımları tespit edilmiştir. Kromit tanelerinin sayı dağılımının geometrik ortalaması
(lnxgN) 3.729 ln μm ve geometrik standart sapması (lnxσg) 0.993 ln μm bulunmuştur. Sayı ortalama boyutları
arasındaki ilişkilerden faydalanılarak, tanelerin sayı-uzunluk ortalama çapı (xNL) ve d80 boyutu sırasıyla 68.2 μm ve
157 μm bulunmuştur. Sayı-hacim (kütle) ortalama çapı (xNV) ve d80 boyutları ise sırasıyla 183 μm ve 421 μm
hesaplanmıştır.
References
- [1] Allen, T. Particle size measurement, Powder Technology Series (Third edition), Chapman and Hall Ltd.,London, (1981).
- [2] Allen, T., Particle size measurement, Volume 1, Powder sampling and particle size measurement, Powder Technology Series, Chapman and Hall, (1997).
- [3] Bayazıt, T. ve Oğuz, D., Mühendisler İçin İstatistik, İstanbul Teknik Üniversitesi, İnşaat Fakültesi, İstanbul, (1985).
- [4] Crampton, C., The Industrial Value of High Sensitivity Particle Image Analysis, Powder Metallurgy, Volume 48, No.4, pp. 306-308,(2005).
- [5] Engin, T., Türkiye’de Krom Madenciliği Sorunları, TMMOB Jeoloji Müh. Odası Yayınları, Ankara, (1981).
- [6] Jones, M. P., Applied Mineralogy, A Quantitative Approach, Mineral Resources Engineering Department, Imperial Collage, London, (1987).
- [7] Kulaksız, S., Sivrihisar Kuzey-Batı Yöresinin Jeolojisi, Yerbilimleri Enstitüsü, Hacettepe Üniversitesi, Ankara, (1981).
- [8] Leco 2001 Image Analysis System Operator’s Manual, (1992).
- [9] Petruk, W., Automatic Image Analysis for Mineral Benefication, Journal of Metals, 40, 4, 29-31, (1988a).
- [10] Petruk, W., The Capabilities of The Microprope Kontron Image Analysis System: Application to Mineral Benefication, Scanning Microscopy, 2, 3, 1247-1256, (1988b).
- [11] Petruk, W., Ore Characteristics That Affect Breakage and Mineral Liberation During Grinding, Process Mineralogy, Edited by D.J.T. Carson and A.H. Vassiliou, The Minerals, Metals & Materials Society, (1988c).
- [12] Petruk, W., Short Course on Image Analysis Applied to Mineral and Earth Sciences, Mineralogical Association of Canada, Ottowa, pp. 86-89, (1989).
- [13] Svarovsky, L., Solid-Liquid Separation, Second Edition, Butterworths Monographs in Chemistry and Chemical Engineering, (1981).
- [14] Taşdemir, A., Görüntü Analizi İle Zenginleştirme Öncesi Tane Boyut Analizi, Osmangazi Üniversitesi Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, (1996).