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Cerium-zirconium Mixed Oxide

 

Molecular formula:(CexZryR1-x-y)O2, R can be one or more of La,Y, Pr or Nd,        

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

30-40

47-65

Zr(Hf)O2

50-60

15-40

doped elements %

Nd2O3

0-7

0-7

Pr6O11

0-7

0-7

La2O3

0-5

0-5

Y2O3

0-6

0-6

impurity content %

 

Na2O

<0.03

<0.03

SiO2

<0.05

<0.05

Fe2O3

<0.03

<0.03

CaO

<0.03

<0.03

Cl-

<0.01

<0.01

SO42-

<0.03

<0.03

physical properties

SA(Fresh) /g

70-100

70-100

SA(aged,1000/10hr) /g

>40

>40

SA(aged,1100/10hr) /g

>20

>20

SA(aged,1200/10hr) /g

>5

>5

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