| 摘要 |
<p>The present invention relates to the use of new methylcarbonate-based ionic liquids (Lis) or carboxylates, derived from aliphatic or aromatic carboxylic acids, In the extraction of nitrogen organic or nitrogenous compounds: aliphatic and aromatic, pollutants as hydrocarbon mixture (HCs); through the process of liquid-liquid selective extraction (LI-HCs), at room temperature and atmospheric pressure, where the Lls are immiscible with the HCs, due to the increased affinity for the organic nitrogenous compounds In the middle of LI with regard to the means of HCs In which they are present. This process is performed through a extraction with two phases stirring, followed by a stage of separation, or in a continuous flow system where the nitrogenous compounds are transferred to the phase formed by the LI and as a result the total nitrogen content is substantially reduced In the HCS phase. The new Lls used in the present invention, for the denitrogenation of HCs mixtures, have the general fo rmula C+ A-, where: C+ is a heterocyclic organic cation, or quaternary ammonium-based; and A- is a methylcarbonate- or carboxylates-based anion derived from aliphatic or aromatic carboxylic acids. The main competitive advantages of the novel technology for extraction of the present invention ere: A high efficiency in the elimination of nitrogen compounds mixture of HCs pollutants, Operation conditions of the process, which are substantially soft and environmentally friendly, and substantially reduced costs.</p> |
