Pseudo boehmite is widely used as a catalyst support and precursor in refining and petrochemical processes due to its high surface area and thermal stability. It is especially effective in hydrocracking and hydrotreating applications where it helps disperse active metal components like nickel, molybdenum, or cobalt. Its tunable pore structure and ability to form stable gels make it ideal for shaping into extrudates or beads for fixed-bed reactors.

In emission control, pseudo boehmite is used in the formulation of washcoats for automotive catalytic converters, where it enhances the adhesion and dispersion of precious metals. It also serves as a binder in advanced ceramics and refractory materials, improving mechanical strength and heat resistance.

Additionally, it finds use in adsorbents for removing impurities from gases and liquids, and in the production of high-purity alumina for specialty applications such as electronics and medical devices. Its reactivity in acidic and basic environments allows for easy modification in composite materials for targeted industrial uses.