High-Purity Silicas for Zeolite Catalyst Applications
For more than five decades, Qemetica HI-SIL® silicas have been specified by zeolite catalyst manufacturers and refinery operators worldwide to facilitate the most difficult reactions and separations in the industry.
That tradition continues today with Hi-Sil 250, a high-purity, sulfate-deficient engineered silica that is ideally suited for the manufacture of high-silica zeolites specified in fluid catalytic cracking (FCC), hydrocracking, custom and specialty catalyst applications.

Our ability to precisely select and control particle size, surface area and pore structure of both Hi-Sil 250 and 915 silicas provide the desired catalyst support structure required for polymer synthesis applications.
Available for global delivery, Hi-Sil silicas provide chemists with a trusted solution to meet the stringent requirements of today’s catalyst market.
Typical Product Properties for Zeolite Catalyst Applications
Product |
Particle |
N2 BET |
pH |
Residual Salt Type |
Bulk Density |
---|---|---|---|---|---|
Hi-Sil 250 |
18 |
135 |
6.9 |
NaCl |
9 |
Hi-Sil 915 |
10 |
195 |
6.9 |
Na2SO4 |
5 |
*Median particle size by laser diffraction
Hi-Sil is a trademark of Qemetica Industries Ohio, Inc.
Do you have a zeolite catalyst application that could benefit from Hi-Sil silicas? If so, contact us to request samples or more information.

Rubber
Qemetica's precipitated silica products have been integral to the rubber industry since the 1930s and have earned the trust of manufacturers and compounders around the world for their reliable performance, consistent quality and dependable supply.

Coatings, Adhesives and Sealants
Our precipitated silica products are used as high-performance flatting agents, thickening agents and anti-corrosion pigments to improve the performance, workability and sustainability of coatings, paints, inks, adhesives, and sealants.

Microporous
Qemetica's precipitated silica products are a key component of battery separators and TESLIN® synthetic paper, providing microporosity that is the basis for a wide range of related performance benefits.