Patent · US Expired

Catalyst and catalytic oxidative dehydrogenation of alkylaromatics and paraffins

US5902918A · kind A · utility

2Cited by

8References

11Claims

0Family size

Assignee

BASF SE

Inventors

Alfred Hagemeyer · Sunnyvale, US
Gunter Lauth · Lübeck, DE
Thomas Lautensack · Altleiningen, DE
Axel Deimling · Neustadt, DE

Key dates

Filing date	Mar 13, 1997
Grant date	May 11, 1999
Priority date	—
Expiry date	Mar 13, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/584
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Alkenylaromatics are produced by catalytic oxidative dehydrogenation of alkylaromatics employing a redox catalyst which is bismuth oxide, in combination with an additive compound of an alkali metal and/or an alkaline earth metal, on a titanium diooxide carrier. In a first reaction step, an alkylaromatic starting material is oxidatively dehydrogenated with the redox catalyst in the absence of molecular oxygen with attending reduction of the redox catalyst. In a second reaction step, the reduced redox catalyst is reoxidized with an oxygen-containing gas.

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