Patent · US Active

Chromium catalyst, its preparation and use

US11389786B2 · kind B2 · utility

0Cited by

8References

8Claims

0Family size

Assignee

BASF SE

Inventors

Weiqing Joe Zou · Twinsburg, US
David James Brockway · Mentor, US
Peter Pfab · Schwarzheide, DE
Matthias Schwab · Amorbach, DE

Key dates

Filing date	May 22, 2017
Grant date	Jul 19, 2022
Priority date	—
Expiry date	Sep 22, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2235/15
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chromium (III) oxide and chromium (VI) oxide at an amount of about 10,000 ppm or less based on total chromium oxide contents in the chromium oxide catalyst composition.

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