Preparation of lanthanum- p-alumina with high surface area by a homogeneous precipitation method for use as catalyst support
نویسندگان
چکیده
Samples containing mixtures of 5 mol % La203 and 95 mol % Al203 were prepared by homogeneous precipitation method with or without the presence of various anions, and calcined at different temperatures in the range of 873-1473 K. Sample prepared by urea hydrolysis in the absence of anions, and calcined at about 1273 K results in the formation of pure lanthanum-,8-alumina (LBA) with high surface area. However, in the presence of additive anions, the formation of LBA is retarded.
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