Acid leaching of ash and coal Time dependence and trace element occurrences
Yazarlar (5)
Mehtap Paul Tenmak (Turkish Energy, Nuclear And Mineral Research Agency), Türkiye
Prof. Dr. Meryem SEFERİNOĞLU Sinop Üniversitesi, Türkiye
Gül Asiye Aycık Tenmak (Turkish Energy, Nuclear And Mineral Research Agency), Türkiye
Åke Sandström Luleå University Of Technology, İsveç
Jan Paul Luleå University Of Technology, İsveç
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı International Journal of Mineral Processing (Q2)
Dergi ISSN 0301-7516 Dergi Bilgileri (2006)
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 04-2006
Kabul Tarihi – Yayınlanma Tarihi 01-04-2006
Cilt / Sayı / Sayfa 79 / 1 / 27–41 DOI 10.1016/j.minpro.2005.11.008
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0301751605001808
UAK Araştırma Alanları
Dedektör Teknolojisi
Özet
The leaching of coal and coal/asphaltite/wood-ashes in sulfuric acid (pH 1.0, 25 °C, S/L, 1:10) was studied as a function of time; acid consumption and extracted metal concentrations are presented. Whole coals consumed acid rapidly during the first few minutes, followed by slow acid consumption. Wood-, lignite-, and asphaltite-ashes consumed acid in two stages, the rapid phase extending <30 min and the slow phase extended up to 10 days. The rapid phase was dominated by the dissolution of Ca, K and Mg ions for wood-ash, by Ca, Al and Mg ions for lignite-ash and Ca and Mg ions for asphaltite-ash. The sulfur concentration in solution and the concentrations of Ca, Fe, K, Mg, Na, P, Al and Mn in the aqueous phase verified the neutralizing capacity of the untreated ashes as well as the formation of insoluble sulfates in the residues. The slow phase kinetics differed for different fuels and exhibited leaching of …
Anahtar Kelimeler
Acid leaching | Ash leaching | Asphaltite | Coal leaching | Leaching kinetics | Lignite | Metal occurrence
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Scopus 40
Acid leaching of ash and coal Time dependence and trace element occurrences

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