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1. (WO2015121476) METHOD FOR HYDROGENATING CARBON DIOXIDE INTO FORMATE

Pub. No.:    WO/2015/121476    International Application No.:    PCT/EP2015/053237
Publication Date: Aug 20, 2015 International Filing Date: Feb 16, 2015
IPC: C07C 51/41
C07C 53/06
Applicants: BAYER TECHNOLOGY SERVICES GMBH
Inventors: LEITNER, Walter
FRANCIO, Giancarlo
BLAS MOLINOS, Beatriz
Title: METHOD FOR HYDROGENATING CARBON DIOXIDE INTO FORMATE
Abstract:
The invention relates to a method for hydrogenating carbon dioxide into a formate, comprising the following steps: providing an organic phase, comprising an organic solvent and a ruthenium-containing catalyst dissolved or suspended in the organic solvent, and an aqueous phase in a reactor, wherein the organic phase and the aqueous phase form two phases that cannot be mixed with each other; adding at least one amine, carbon dioxide, and hydrogen to said reactor; hydrogenating the carbon dioxide with the hydrogen into formate, wherein the formed formate merges into the aqueous phase; and separating the aqueous phase from the organic phase.