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has been cited by the following article:

• TITLE: Leaching of Minerals in Degari Coal

  AUTHORS: Mohammad Shakirullah, Imtiaz Ahmad, Mohammad Arsala Khan, Mohammad Ishaq, Habib ur Rehman, Uzma Khan

  KEYWORDS: Coal; Minerals; Leaching; Particle Morphology

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.5 No.2, October 20, 2006

  ABSTRACT: This paper reports the demineralization of coal with EDTA, citric acid, HCl, HNO3, acid mixture and CH3COONH4. The residual coal from each treatment was analyzed using Scanning Electron Microscopy. All the micrographs are bright field and reveal several features correspond to the mineral grains comprised of lithophiles like aluminum, potassium, and sodium; sidrophiles like iron and chalcophiles like copper and germanium. The absence of some morphological features correspond to inorganic elements in residual samples confirms demineralization. It is evident from the results that amongst the leachants used; acid mixture and EDTA have caused significant removal of mineral phases.