Removal of nitric oxides by copper-containing zeolites

Details Removal of nitric oxides by copper-containing zeolites Removal of nitric oxides by copper-containing zeolites

1988-10-07

1991-03-12

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

B01J 800, C01B 2100

Patent

active

049991736

ABSTRACT:
Copper-containing zeolites are prepared by subjecting a zeolite having the lattice spacings (d value) indicated in Table 1 as estimated by powder X-ray diffraction to ion exchange with copper ions in an aqueous solution containing a water soluble copper salt and ammonia. Nitrogen oxides can be decomposed with the copper-containing zeolite catalyst.

REFERENCES:
patent: 3689212 (1972-09-01), Pettit et al.
patent: 4104361 (1978-08-01), Nishikawa et al.
patent: 4297328 (1981-10-01), Ritscher et al.

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