Abstract
X-ray absorption spectroscopy is used to investigate the speciation of sorbed copper in heated fly ash. CuO and Cu(OH)2 are determined to be the principal copper species in the Cu-sorbing fly ash heated at 500 °C for 2 h. Heating the Cu-sorbing fly ash to 900 °C or 1100 °C can result in the formation of CuSO4, representing 41% and 32% of the total copper, respectively. Ash sintering and/or co-melting at 900 and 1100 °C occur, thereby triggering chemical reaction between CuO/Cu(OH)2 and sulfur compounds.
Original language | English |
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Pages (from-to) | 1916-1920 |
Number of pages | 5 |
Journal | Radiation Physics and Chemistry |
Volume | 75 |
Issue number | 11 SPEC. ISS. |
DOIs | |
Publication status | Published - 2006 Nov |
All Science Journal Classification (ASJC) codes
- Radiation