Patent · US Active

Process for preparing formic acid by reaction of carbon dioxide with hydrogen

US8946462B2 · kind B2 · utility

1Cited by

1References

16Claims

0Family size

Assignee

BASF SE

Inventors

Thomas Schaub · Ludwigshafen, DE
Marek Pazicky · Ludwigshafen am Rhein, DE
Donata Maria Fries · Mannheim, DE
Rocco Paciello · Bad Dürkheim, DE
Anton Meier · Birkenheide, DE

Key dates

Filing date	Nov 8, 2012
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Mar 29, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/98
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for preparing formic acid by reaction of carbon dioxide with hydrogen in a hydrogenation reactor in the presence of a transition metal complex as a catalyst comprising at least one element from group 8, 9 or 10 of the Periodic Table and at least one phosphine ligand with at least one organic radical having at least 13 carbon atoms, of a tertiary amine and of a polar solvent to form a formic acid-amine, adduct, which is subsequently dissociated thermally to formic acid and the corresponding tertiary amine. on unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.