Abstract
The partitioning behavior of boron in pulverized coal combustion is investigated to estimate boron concentration in waste water from power station. The specific gravity separation test for 4 coals and leaching test for 10 coals were performed to investigate boron distribution and chemical form in coal. Boron concentration in coal had an affinity to vitrinite in coal, because boron concentration had positive correlation with vitrinite content. On the other hand, boron concentration had negative correlation with inerinite and mineral content in coal. Boron concentration of specific gravity fraction including high reginite content showed extremely low value. Boron concentration in coal decreases with increase of reginite content Boron exists in coal as water-soluble and water-insolible chemical compounds.
