Method of the System for Securely Processing a Transaction

Abstract

A process for preparing formic acid by reaction of carbon dioxide (1) with hydrogen (2) in a hydrogenation reactor (I) in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine comprising at least 12 carbond atoms per molecule and r - a polar solvent comprising one or more monoalcohols selected from among methoanol, ethanol, propanols and butanols and also water, to form formic acid / amine adducts as intermediates which are subsequently thermally dissociated, with work-up of the output ¢3) from the hydrogenation reactor (I) jn a plurality of process steps, where a tertiary amine-comprising stream (13) from the work-up is used as selective solvent for the catalyst, is proposed.