Patent · US Active

Titania-doped zirconia as platinum group metal support in catalysts for treatment of combustion engine exhausts streams

US10883402B2 · kind B2 · utility

2Cited by

24References

5Claims

0Family size

Assignee

BASF SE

Inventors

Xiaoming Wang · Sunnyvale, US
Michel Deeba · East Brunswick Township, US
Xiaolai Zheng · Princeton Junction, US
Sven Titlbach · Heidelberg, DE
Andreas Sundermann · Bensheim, DE
Stephan Schunk · Heidelberg, DE

Key dates

Filing date	Feb 18, 2019
Grant date	Jan 5, 2021
Priority date	—
Expiry date	Feb 18, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Composites of mixed metal oxides for an exhaust gas purifying catalyst comprise the following co-precipitated materials by weight of the composite: zirconia in an amount in the range of 55-99%; titania in an amount in the range of 1-25%; a promoter and/or a stabilizer in an amount in the range of 0-20%. These composites are effective as supports for platinum group metals (PGMs), in particular rhodium.

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