Patent · US Active

Method for the heterogeneously catalyzed partial direct oxidation of n-propane to acrylic acid

US7795470B2 · kind B2 · utility

0Cited by

9References

7Claims

0Family size

Assignee

BASF SE

Inventors

Martin Dieterle · Ludwigshafen, DE
Joerg Heilek · Bammental, DE
Klaus Joachim Mueller-Engel · Blankenloch, DE

Key dates

Filing date	Jun 19, 2008
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Jul 31, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/215
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for the heterogeneously catalyzed partial direct oxidation of propane to acrylic acid in the gas phase, in which the reaction gas inlet mixture comprises cyclopropane as an impurity and the acrylic acid, after it has been converted from the product gas mixture into the liquid phase, is operated from the other constituents of the liquid phase with the aid of a separation by crystallization.

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