抽象的な

The identification of iron in a Spanish coal using low temperature Mossbauer spectroscopy (4.2°-40K)

M.A.Ahmed, M.J.Blesa, R.Moliner


The method of using low temperature Mossbauer spectroscopy to identify the iron species in coal is illustrated for sub bituminous (AA5) and semi-anthracite (BZ) coals. The 4K spectrum of the AA5 sample exhibits besides pyrite and rozenite a magnetically split ferric component compatible with jarosite (H=485 kOe). Whilst, set of low temperature spectra of the BZ sample, taken respectively at 9K, 20K, 30K and 40K indicate besides pyrite and szomolnokite other two relaxation sextets belong to siderite and ankerite. Furthermore, analysis of iron by the method of atomic absorption spectroscopy and according to ASTM methods for coal showed the presence of organically bound iron (0.133 % Fe.) in the BZ sample. The existent of an organic iron in a coal sample is of a great importance, which will be inevitably discussed in this work.


インデックス付き

  • キャス
  • Google スカラー
  • Jゲートを開く
  • 中国国家知識基盤 (CNKI)
  • サイテファクター
  • コスモスIF
  • 電子ジャーナルライブラリ
  • 研究ジャーナル索引作成ディレクトリ (DRJI)
  • 秘密検索エンジン研究所
  • ICMJE

もっと見る

ジャーナルISSN

ジャーナル h-インデックス

Flyer

オープンアクセスジャーナル