Rare Earth −Zr Complex Carrier Coating

[Applied Field]

• Catalyst for cleaning exhaust gases of automotives and motorcycles


• Cleaning of industrial organic exhaust gases and indoor air


• Catalyst for nature gases combustion


• Catalytic decomposition in fluidized-bed in oil refining industry

[Product Properties]

• Using different forms of rare earth, Zr and Al compounds as raw materials, the coatings after baking will have the best oxygen storage and release capability and specific surface area stability.


• Through fully rubbing and precise classification, the coarse particles in the powder can be wiped off. Therefore, it will achieve uniform distribution of the rare-earth and alumina particles, which can avoid sedimentation while using and the coating thickness can be controlled more easily.


• Doped with nano Al₂O₃ and CeO₂, the bonding stress of coatings will increase, which can avoid chapping and peeling while using and give the carrier strong resistance to the wet hot current erosion.

[Technology Parameters]

Model	RC−25AS	RC−35AS
Appearance	yellowish	yellowish
Main Composition	(La0.05Y0.05 Ce0.6Zr0.3)O2, γ-Al2O3	(La0.05Y0.05 Ce0.3Zr0.6)O2 ,γ-Al2O3
Solid content	40 ± 2 %	40 ± 2 %
D50	1.0-1.5 μm	1.0-1.5 μm
Fresh Specific Surface Area	150 -250 m2 /g	150 -250 m2 /g
Aging Specific Surface Area (1000ºC 4hr m2/g)	40 − 60 m2 /g	50 − 70 m2 /g

[Instruction]

• Swill out the product and mix, estimate the concentration according to the coating dosage and adjust to PH=2~3 with nitric acid


• Reinforce water according the absorption of the carrier during coating and mix to assure stable solid content


• The content of the transition elements such as Mn²⁺,Co³⁺ and the solid can be adjusted according to the request of users.

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