| 摘要 |
An amorphous refractory composition comprises a solid combination of a rare earth oxide, aluminum oxide and aluminum phosphate having, after calcination, a surface area of 50 m2/g to 500 m2/g, a pore volume of 0.3 cc/g to 1.5 cc/g, and Equilibrium Sorption capacities greater than about 10 wt.% for water vapor, greater than 6 wt.% for cyclohexane vapor and greater than 5 wt.% for n-hexane vapor, said rare earth oxide, aluminum oxide and aluminum phosphate being present in the refractory composition, in the weight ratios of 10:20:70 to 90:5:5. |
