发明公开
EP2588438A1 VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE DURCH UMSETZUNG VON KOHLENDIOXID MIT WASSERSTOFF 有权
VERFAHREN ZUR HERSTELLUNG VONAMEISENSÄUREDURCH UMSETZUNG VON KOHLENDIOXID MIT WASSERSTOFF

VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE DURCH UMSETZUNG VON KOHLENDIOXID MIT WASSERSTOFF
摘要:
A process is proposed for preparing formic acid by reaction of carbon dioxide (1) with hydrogen (2) in a hydrogenation reactor (I) in the presence of a catalyst containing an element from group 8, 9 or 10 of the Periodic Table, of a tertiary amine containing at least 12 carbon atoms per molecule, and of a polar solvent comprising one or more monoalcohols selected from methanol, ethanol, propanols and butanols, and water, to form formic acid/amine adducts as intermediates, which are subsequently cleaved thermally, with workup of the outputs (3) from the hydrogenation reactor (I) in several process steps, a stream (13) comprising tertiary amine from the workup being used as a selective solvent for the catalyst.
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