Pseudoboehmite is an aluminium compound with the chemical composition AlO(OH). This product is a large-pore, medium-density pseudo-boehmite product with high purity, large pore volume, uniform pore size distribution, good fluidity, and easy acid dissolution. This product has the characteristics of good molding performance, high strength, good wear resistance, etc. It is widely used in hydrocracking, residual oil hydrogenation, hydrofining and other catalyst industries, and it can also be used as an important component of fine abrasives and high temperature adhesives. Physical and chemical indicators: Item Pole Volume Specfic Surface DryBasis SiO2 Dispersionindex Na2O Fe2O3 M1/g M2/g % % % % % HYN_001 0.70-0.90 240-320 70 ± 1 <0.06 <0.08 <0.02 0.90-1.10 280-340 70 ± 1 <0.06 <0.08 <0.02 HYN_002 0.70-1.10 240-380 70 ± 1 0.5-2.0 <0.08 <0.02 0.70-1.10 280-400 70 ± 1 2-4 <0.08 <0.02 0.80-1.20 220-400 70 ± 1 >4 <0.08 <0.02 HYN_003 0.70-1.20 200-300 70 ± 1 <0.02 <0.01 <0.01 HYN_004 0.37-0.45 240-280 >60 <0.06 >96 <0.10 <0.02 0.37-0.45 240-280 >60 <0.06 >96 <0.05 <0.02