A novel oxidative method for the absorption of Hg0 from flue gas of coal fired power plants using task specific ionic liquid scrubber

Ionic liquids with trichloride anions for oxidative dissolution of metals and alloys

“…ILs can store halogens by forming trihalide or polyhalide anions, to be used as reagents for halogenation of organic compounds, such as aromatics, alkenes and alkynes. 10,11 [12][13][14][15][16][17][18] but to the best of our knowledge, no room temperature trichloride ILs have been reported yet, with the exception of a few trichloride solid salts. 19,20 Nevertheless, trichloride ILs (with the [Cl 3 ] À anion) are very promising, because in most cases they are much more reactive towards metals than tribromide and triiodide ILs.…”

Dissolution behavior of precious metals and selective palladium leaching from spent automotive catalysts by trihalide ionic liquids

“…1 H NMR spectra were recorded on a Bruker Avance 300 NMR spectrometer operating at 300 MHz. 31 P NMR spectra were recorded on a Bruker Ascend 400 NMR spectrometer operating at 162 MHz. Samples for 1 H NMR were diluted in deuterochloroform and internally referenced to tetramethylsilane.…”

“…29,30 Trihalide ionic liquids were reported to be excellent oxidizing agents for metals. 26,[31][32][33][34][35] In this paper, we investigate the reactivity of trihalide ionic liquids towards the oxidation of the precious metals platinum, palladium, rhodium and gold. The selective leaching of those metals (apart from gold) from spent exhaust catalyst is also investigated.…”

Hg0 removal from flue gas by ionic liquid/H2O2

“…The ionic liquid was prepared via the reaction of 1-methylimidazole with 1-chloroalkane at high temperature as previously reported [36][37][38].…”

“…Ionic liquids are widely used in the fields of organic synthesis, electrochemistry, catalysis, physical chemistry, chemical engineering and environmental chemistry [32][33][34][35]. Unfortunately, so far, only a few ionic liquids have been used as absorbents for Hg 0 removal from flue gas [36,37].…”