Patent · US Expired

Process for preparing catalytically active coatings for the synthesis of hydrogen cyanide

US6048512A · kind A · utility

4Cited by

5References

3Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Lukas von Hippel · Alzenau, DE
Christian Bussek · Alzenau, DE
Jorg Sauer · Rodenbach, DE
Manfred Sauer · Wilhelmshaven, DE
Dietrich Arntz · Oberursel, DE

Key dates

Filing date	Mar 30, 1999
Grant date	Apr 11, 2000
Priority date	—
Expiry date	Mar 30, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01C3/0233
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for preparing catalytically active coatings for the synthesis of hydrogen cyanide on moulded items substantially consisting of aluminum oxide. The catalytically active coatings contain, as active components, at least one platinum group metal and a nitride waich are applied to the moulded item by means of a coating dispersion which contains the active components as finely divided solids. This means that the hitherto conventional production of aluminum nitride during the forming process is not required. The coatings therefore achieve their final activity level, which is well above that of conventional coatings, very rapidly. In addition, these catalysts can be started up under high load and have a lower operating temperature.

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