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Sulphur removal from Spanish low rank coals by acid-catalyzed depolymerization

โœ Scribed by B. Rubio; A.M. Mastral


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
393 KB
Volume
21
Category
Article
ISSN
0378-3820

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Removal of calcium from low rank coals b
โœ Jun-ichiro Hayashi; Kaori Takeuchi; Katsuki Kusakabe; Shigeharu Morooka ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 668 KB

Calcium and magnesium were removed from a brown coal and two subbituminous coals by treating with CO, dissolved in water under a pressure of 600kPa. The results were compared with treatment in a hydrochloric acid solution. Removal of calcium was significantly dependent on the chemical form of calciu