Patent · US Expired

Process for producing catalysts comprising nanosize metal particles on a porous support, in particular for the gas-phase oxidation of ethylene and acetic acid to give vinyl acetate

US6987200B2 · kind B2 · utility

17Cited by

1References

15Claims

0Family size

Assignee

CELANESE CHEMICALS EUROPE GMBH · DE

Inventors

Alfred Hagemeyer · Sunnyvale, US
Uwe Dingerdissen · Seeheim-Jugenheim, DE
Klaus Kuhlein · Kelkheim, DE
Andreas Manz · Basel, CH
Roland Fischer · Bochum, DE

Key dates

Filing date	Mar 24, 2003
Grant date	Jan 17, 2006
Priority date	—
Expiry date	Nov 15, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2235/30
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for producing a catalyst containing one or several metals from the group of metals comprising the sub-groups Ib and VIIIb of the periodic table on porous support particles, characterized by a first step in which one or several precursors from the group of compounds of metals from sub-groups Ib and VIIIb of the periodic table is or are applied to a porous support, and a second step in which the porous, preferably nanoporous support to which at least one precursor has been applied is treated with at least one reduction agent, to obtain the metal nanoparticles produced in situ in the pores of said support.

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