Process for preparing a high-density and middle-porosity...

Details Process for preparing a high-density and middle-porosity... Process for preparing a high-density and middle-porosity...

B - Operations, Transporting

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252/70, 252/72

B01J 23/94 (2006.01) B01J 23/84 (2006.01) B01J 23/847 (2006.01) B01J 35/10 (2006.01) C01B 17/79 (2006.01)

Patent

CA 1333171

A process for preparing a high-density and middle-po- rosity catalyst, supported on a siliceous matrix, based on vanadium, oxygen and alkali metals, wherein the V2O5 content ranges from 6 to 9% by weight, the K2O content ranges from 8.5 to 12% by weight and the particle density ranges from 0.90 to 1.40 g/cm3 and wherein furthermore: - the volume of the pores is from 0.30 to 0.70 cm3/g and the surface area is from 0.30 to 3 m2/g, the average radius of the pores being from 650 to 2200 nanometers; - the SiO2 content is equal to or lower than 75% by weight and the Fe2O3 content is equal to or higher than 0.90% by weight.

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