Title:
PRODUCING ACETALDEHYDE AND/OR ACETIC ACID FROM BIOETHANOL
Document Type and Number:
WIPO Patent Application WO/2011/067363
Kind Code:
A3
Abstract:
The invention discloses a method for producing acetaldehyde and/or acetic acid, according to which method a gaseous flow, containing molecular oxygen, ethanol and at least one impurity selected from sulphur compounds, is brought into contact at a high temperature with a sulphur-resistant oxidation catalyst. The ethanol is preferably obtained from a biomass. Said sulphur-resistant oxidation catalyst comprises, for example, vanadium oxide and at least one oxide of zirconium, titanium and aluminium. In one embodiment, the gaseous flow is converted, on the sulphur-resistant oxidation catalyst, into a first oxidation mixture, acetaldehyde being the predominant oxidation product, and said first oxidation mixture is converted, on another oxidation catalyst, into a second oxidation mixture, acetic acid being the predominant oxidation product. Said other oxidation catalyst comprises, for example, a multi-metal oxide containing at least molybdenum and vanadium.
Inventors:
HUBER SABINE (DE)
GITTER MARKUS (BE)
CREMER ULRICH (DE)
GITTER MARKUS (BE)
CREMER ULRICH (DE)
Application Number:
PCT/EP2010/068793
Publication Date:
October 13, 2011
Filing Date:
December 03, 2010
Export Citation:
Assignee:
BASF SE (DE)
HUBER SABINE (DE)
GITTER MARKUS (BE)
CREMER ULRICH (DE)
HUBER SABINE (DE)
GITTER MARKUS (BE)
CREMER ULRICH (DE)
International Classes:
C07C51/235; C07C45/00; C07C47/06; C07C53/08
Foreign References:
| US5840971A | 1998-11-24 | |||
| US4048112A | 1977-09-13 |
Attorney, Agent or Firm:
REITSTÖTTER KINZEBACH (München, DE)
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