Effectiveness of the dense medium and the froth flotation methods in cleaning some Turkish lignites
Küçük Resim Yok
Tarih
2004
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The feasibility of cleaning three Turkish lignites (Beypazari, Golbasi and Kangal lignites) by the dense medium separation or the froth flotation method has been investigated. Solutions of zinc chloride (ZnCl2) with specific gravities ranging from 1.1 to 1.75 have been used as the dense medium. In the case of froth flotation, methyl isobutyl carbinol (MIBC), diethyl isohexanol (DEH) and sodium dodesyl sulphonate (SIDS) were used as the frother and kerosene was used as the collector. In both methods, each lignite sample was separated into two sub-fractions: the lignite rich part and the mineral matter rich part. The results indicate that the effectiveness of the methods in ash and sulphur removal is appreciably different for the different lignites. An effective pyritic sulphur removal (over 90%) was obtained for Beypazari or Golbasi lignites by the dense medium separation. The effectiveness of the froth flotation was relatively different depending on both the lignite and frother type. The recovery is generally low and changes considerably depending on the frother type and particle size. (C) 2003 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
lignite, cleaning, dense medium, froth flotation
Kaynak
Energy Conversion and Management
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
45
Sayı
9-10
