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Coal solubilisation is often a necessary step for the alternative utilisation of the cheap and abundant brown coal resources in the State of Victoria, Australia, such as producing high quality fuel or chemicals. A series of ionic liquids (ILs), ammonium carbamates, formed by the association of carbon dioxide (CO2) with low molecular weight secondary amines, were investigated as solvents for the solubilisation...
Ionic liquids formed by association of carbon dioxide (CO2) with low molecular weight secondary amines to form carbamate salts (e.g. N,N-dimethylammonium N′,N′-dimethylcarbamates, or DIMCARB) as solvents have been identified as ‘distillable’ as they reform their volatile precursor components upon heating at relatively low temperature and, thus, can be recovered by condensation. DIMCARB was selected...
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