The pore volume of our macroporous pseudoboehmite is 0.9-1.2ml/g. There are high silicon macroporous pseudoboehmite and low silicon macroporous pseudoboehmite.

Macro pore volume pseudoboehmite is also called aluminum hydroxide dry glue or macroporous pseudoboehmite, a hydrate alumina, false monohydrate soft diaspore. It can used in different application according to the different production process .We use high purity aluminium hydroxide and ionic membrane alkali as raw materials, after the carbonation to produce series of macroporous pseudo boehmite( macroporous pseduboehmite) with different process.

Test report
SiO2	Fe2O3	Na2O	Pore volume	Surface area	AL2O3.3H2O	Dry basis
2-3%	≤0.01%	≤0.05%	≥1.0ml/g	≥350m2/g	≤3%	≥70%

Application:Catalyst carrier, catalyst and adsorbent

It can be used as a binder for semi-synthetic rare earth Y zeolite cracking catalysts, binders for aluminum silicate refractory fibers, ethylene dehydration catalysts and ethylene oxide catalysts, etc. It can also be used as catalyst carrier, activated alumina and others. Aluminum salt raw materials.

The product γ-Al2O3 calcined at 400-700°C is widely used as a catalyst carrier, catalyst and adsorbent, etc.; it is calcined between 1100 and 1200°C to obtain nanometer α-Al2O3, widely used as coating additive, high-grade ceramic, High-efficiency catalysts for petrochemical industry, submicron/nano abrasive materials and polishing materials, cosmetic fillers and inorganic film materials are a class of new materials with broad development prospects.

In addition, it is the preferred aluminum source for the synthesis of aluminophosphate molecular sieves and heteroatom phosphorus aluminosilicates. For the synthesis of aluminophosphate molecular sieves and heteroatoms of phosphorus-aluminum series molecular sieves, it is preferable to add a phosphorus source and an aluminum source together with the addition of an oxygen source. In general, aluminum atoms do not have oxygen atoms attached to the aluminum atoms. If aluminum atoms are used as the aluminum source, it is difficult or sufficient to obtain an oxygen source. Therefore, aluminum salts are generally not used. Considering the requirement of uniform dispersion of the reaction mixture, the added aluminum source is preferably soluble in a weak acid or moderately strong acid solution, while aluminum oxide or aluminum hydroxide is only soluble in a strong acid or strong alkali solution, which is unfavorable to the reaction mixture. The dispersion is not suitable for aluminum sources. The pseudo-boehmite can meet the requirements of uniform mixing of oxygen source and reaction, and is the preferred aluminum source for experiments.

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Low-silicon Macroporous Pseudo-boehmite