Chemical oxidation of anthracite with hydrogen peroxide via the Fenton reaction
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Abstract
Solutions of 30% H2O2 ranging from pH = 0 to pH = 11.5 have been used to oxidize anthracite at room temperature. The inorganic impurities, primarily pyrite, catalysed the oxidation and reduction of H2O2 (the Fenton reaction) to form the hydroxyl radical; the oxidation of the organic matter was minimal and was observed only in strong acidic solutions (pH < 1.5). After acid demineralization, samples of the same anthracite underwent a significant enhancement of oxidation in both acid and alkaline solutions (pH = 0.4–11.5). As all the iron had been removed from the surface and the reactions were completed in a much shorter time, the oxidation mechanism must have been of a different nature than that for the untreated anthracite. A qualitative model based on the catalytic decomposition of H2O2 by activated carbon sites in the coal surface is used to explain the oxidation of the demineralized anthracite.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Chemical oxidation of anthracite with hydrogen peroxide via the Fenton reaction |
| Series title | Fuel |
| DOI | 10.1016/0016-2361(84)90041-3 |
| Volume | 63 |
| Issue | 2 |
| Year Published | 1984 |
| Language | English |
| Publisher | Elsevier |
| Description | 6 p. |
| First page | 221 |
| Last page | 226 |