If you are willing to wholesale quality,Website: , advanced and durable special pseudo boehmite from one of the famous China low sodium pseudo boehmite，low density pseudo boehmite manufacturers, CHALCO is always at your service. P-DF-10  P-DF-10 is a middle density, large pore size pseudo-boehmite product, with the character of high purity, large pore volume, uniform pore size distribution and good acid-soluble. For the large pore volume, specific surface area, good thermal stability, P-DF-10 has good formability, high strength and good wear resistance characteristics, which is widely used in hydrocracking, hydrotreating, hydrogenation refining catalyst     （%） Chemical composition Fe2O3 ≤0.04 Na2O ≤0.1 SO42- ≤1.0 LOI （%） ≤30 Physical character （%,XRD） ≤3                         pore volum（ml/g,BET） 0.9-1.1  BET（m2/g,BET） ≥280     Phase transformation      350-450℃                 P-DF-10    → γ-Al2O3      800-900℃                 γ-Al2O3    → θ-Al2O3      1100-1600℃               θ-Al2O3        → α-Al2O3 P-DF-10 X P-DF-10 SEM H-B-90 H-B-90 Is a β-Al (OH) 3 powder produced by high liquidity special process. It’s insoluble in acid. As catalyst components, H-B-90 has the  unique properties of lower the acid active center density. After the molding process, it can be made into many shapes such as bar, ball and Special-shaped. H-B-90  is widely used in high acid activity center catalyst field.  （%）Chemical composition Fe2O3 ＜0.06 Na2O ＜0.30 SiO2 ＜0.15 LOI（%） 33-38 Physical character D50（μm） 20-30 BET（m2/g）BET ＞350                     bulk density（g/cm3）Apparent density   ≥0.56 β-Al(OH)3  （%,XRD） ＞90 α-Al2O3•3H2O  （%,XRD） ≤5 Phase transformation 320℃   H-B-90       → η-Al2O3 900℃   η-Al2O3      → θ-Al2O3 1150℃  θ-Al2O3      → α-Al2O3 H-B-90 X H-B-90 SEM B-D-2 Boehmite is an important precursor for the preparation of γ-Al2O3 and α–Al2O3, Mainly used in catalyst and its carrier materials, coating material, porous membranes and soft abrasive, high temperature ceramics etc. （%）chemical composition Fe2O3 ≤0.04 Na2O ≤0.2 moisture ≤0.5 physical character LOI （%） ≤17 D50（μm） 2.0±0.5                        BET（m2/g）BET ≥70  bulk density（g/cm3）Apparent density   0.3-0.5                  B-D-2 X  B-D-2 SEM A-AS-HC-GSA A-AS-HC-GSA is a white powder on appearance, which is soluble in acid and alkali solution. It has the advantage of good forming performance, strong adhesion, bulk density of small, low sulfide containing. A-AS-HC-GSA is the material of Petroleum refining catalyst, with high activity for hydrogenation cracking catalyst, can also be used for hydrotreating catalyst. （%）Chemical composition Ca                                ＜0.15 Fe2O3                              ＜0.1 Na2O                               ＜0.30 Silicon aluminum ratio                   custom-made Physical character BET（m2/g）  BET                      250-400 bulk density（g/cm3）Apparent density         ≥0.56 L.O.I （%）                          30