Mineral and Chemical Characterization of Magnetic and Non - Magnetic Products Obtained from Dry Magnetic Enrichment of Lignite Coals
Yazarlar (2)
Prof. Dr. Meryem SEFERİNOĞLU Sinop Üniversitesi, Türkiye
Derya Düzenli
Maden Tetkik ve Arama Genel Mudurlugu, Türkiye
Makale Türü Açık Erişim Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Gazi University Journal of Science
Dergi ISSN 2147-1762 Dergi Bilgileri (2022)
Dergi Tarandığı Indeksler ESCI
Makale Dili İngilizce Basım Tarihi 01-2022
Kabul Tarihi 04-01-2022 Yayınlanma Tarihi 01-12-2022
Cilt / Sayı / Sayfa 35 / 4 / 1280–1295 DOI 10.35378/gujs.939443
Makale Linki http://dx.doi.org/10.35378/gujs.939443
UAK Araştırma Alanları
Dedektör Teknolojisi
Özet
The mineral and chemical composition of magnetic (tailing fraction) and non – magnetic (clean coal fraction) products from the dry magnetic separation of coal samples with high ash and sulfur contents obtained from Çanakkale Çan lignite (S1) and Manisa Kula Pabuçlu lignite (S2) were investigated in this study. The feasibility of the dry magnetic separation technique for the separation of the minerals from the coal matrix was identified as the function of coal types and particle sizes. The separation technique depends on coal fragments being weakly diamagnetic, while most of the minerals present in the coal are weakly to moderately paramagnetic. Three particle sizes (coarse-, medium-, and fine-sized) of feed lignite and their magnetic and non-magnetic fractions were separated and characterized. The influence of coal type on the magnetic separation efficiency was determined by the recovery of tailing fractions obtained from S1 and S2 lignites. The particle sizes of S1 lignite were quite lower than S2 lignite. When the fine-sized lignite samples from S1 and S2 were used, the recovery of tailing fractions was the highest compared to other sizes. The mineral compositions of S2 lignite include typically mica, smectite (clay mineral), gypsum, kaolinite (clay mineral), pyrite, quartz, and plagioclase. The results showed that the Permroll High-Intensity Magnetic Separation method for high calorific value and low ash content at the medium-sized particle was more efficient for the S2 lignite sample than the S1 lignite sample.
Anahtar Kelimeler
Chemical composition of coal | Magnetic properties | Magnetic separation | Mineral in coal | Non-magnetic properties