Patent · US Active

Iron-containing aluminosilicate zeolites and methods of making and using same

US8512659B2 · kind B2 · utility

3Cited by

3References

16Claims

0Family size

Assignee

PQ Corporation · US

Inventors

Hong-Xin Li · Allentown, US
William E. Cormier · Lansdale, US
Bjorn Moden · West Chester, US

Key dates

Filing date	Feb 16, 2010
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Feb 16, 2030

Classification

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

Abstract

There is disclosed iron-containing aluminosilicate zeolites having both framework iron and iron cations on the ion-exchange sites. There is also disclosed a direct synthesis method of making an iron-containing aluminosilicate zeolite, which does not require the use of an intermediate step, such as ion-exchange or impregnation. In addition, there is disclosed a method of using the iron-containing aluminosilicate zeolite disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia, to reduce or remove nitric oxides from exhaust emissions.

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