Product introduction:Junda offers a broad portfolio of boehmite materials in its PB series.
The materials in the PB series are differentiated first by dispersibility.Junda offers products ranging from the very highly dispersible, binding grade, PB950, to the less dispersible, extrusion grade, PB250A and PB150.And has the characteristics of high purity, narrow particle size distribution, good dispersion, good batch stability, etc., can be widely used in flame retardant, new energy battery diaphragm coating, lithium battery electrode sheet coating, copper coated plate, polishing abrasive and other fields. 
Each class of material is available in a wide range of key customizable, defining properties such as crystal size, pore volume distribution, and particle size.In addition,PB series boehmites are available with industry standard purity specifications and can be further tailored to meet your particular application.
Product performance: This series of products have small particle size, high pore volume, large specific surface area, good gel solubility, high crystal purity, low impurity content. It has the characteristics of thixotropic gel.
Field of Application:
1, used as the petrochemical and refining catalyst industry binder and molecular sieve synthesis of aluminum source
Pseudo-boehmite is mainly used as a binder for catalytic cracking catalyst. Pseudo-boehmite as binder can not only improve the strength of catalyst, but also adjust the pore size distribution of catalyst, improve the thermal and hydrothermal stability of catalyst, adjust the density of acid active center of catalyst, and improve the catalytic activity.
2. Used as catalyst support
Boehmite is widely used as catalyst support for chemical, oil refining and petrochemical reactions. Typical examples include hydrorefining catalyst support, reforming catalyst support, methanation catalyst support, etc. Pseudo-boehmite can also be used as a catalyst to become γ-alumina after dehydration.
Junda PB Series Boehmite
Al2O3 (wt%) 78-82 78-81
Na2O   (wt%) < 0.05 < 0.05
Loose bulk   density (g/cc) 0.6-1.0 0.6-1.0
Particle size   D50 (µm)^* 20-50 25-55
Surface area   (m2/g)* 200-250 160-200
Pore volume   (cc/g)* 0.35-0.55 0.4-0.6
Crystallite   size (nm) 4-8 9-11
DI (%) > 95 > 95
Al2O3 (wt%) 70-78 73-78
Na2O   (wt%) < 0.05 < 0.05
Loose bulk   density (g/cc) 0.3-0.5 0.6-1.0
Particle size   D50 (µm)* 10-25 10-25
Surface area   (m2/g)* 230-300 200-250
Pore volume   (cc/g)* 0.3-0.5 0.3-0.5
Crystallite   size (nm) 3-5 3-5
DI (%) > 95 > 95

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