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Rare earth zirconium mixed oxides supported by alu

                     

 

Appearance: Powder with color varies from yellowish to brown depending on the difference doped elements or different amount of doped elements

 

 

Use: Catalyst for cleaning exhaust gases of automotives and motorcycles

 

Items

specification

High Zr series

High Ce series

main elements %

CeO2

15-20

23.5-37.5

Zr(Hf)O2

25-30

7.5-20

Al2O3

50±1

50±1

doped elements %

Nd2O3

0-3.5

0-3.5

Pr6O11

0-3.5

0-3.5

La2O3

0-2.5

0-2.5

Y2O3

0-3

0-3

impurity content %

 

Na2O

<0.05

<0.05

SiO2

<0.15

<0.15

Fe2O3

<0.05

<0.05

CaO

<0.05

<0.05

Cl-

<0.05

<0.05

SO42-

<0.1

<0.1

physical properties

SA(Fresh) /g

150-200

150-200

SA(aged,1000/10hr) /g

>60

>50

L.O.I. %

<3

<3

D50 um

Small size 2-5

normal 8-15

Small size 2-5

normal 8-15

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Cerium Zirconium Catalysts

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Cerium Zirconium Mixed Oxide