TY - GEN
T1 - Compressive Properties of Micro-spherical SiO2 Particles
AU - Hellstén, Niko
AU - Karttunen, Antti J.
AU - Engblom, Charlotta
AU - Reznichenko, Alexander
AU - Rantala, Erika
PY - 2020
Y1 - 2020
N2 - Micron-sized, spherical SiO2 particles are important in various industrial applications, such as in heterogeneous catalyst preparation. In particular, many of industrially relevant olefin polymerization catalysts are currently prepared using micro-spherical silica as catalyst support. In large-scale catalytic polyolefin production, the quality of the final product, as well as the process efficiency is crucially dependent on overall consistency, quality, and physico-chemical properties of the catalyst. As the catalyst particle experiences various stresses during the polymer particle growth, mechanical properties of catalyst play a key role in its performance in the polymerization process. However, there is currently a lack of experimental mechanical property measurements of micron-sized, spherical SiO2 particles relevant for the polyolefin catalyst production. In this work, compressive properties of commercial porous micro-spherical silicas were studied using a quasi-static micro-compression method. The method includes compressing single, micron-sized particles in controlled loading conditions. From the measurements, the compressive elastic–plastic properties of these particles can be determined.
AB - Micron-sized, spherical SiO2 particles are important in various industrial applications, such as in heterogeneous catalyst preparation. In particular, many of industrially relevant olefin polymerization catalysts are currently prepared using micro-spherical silica as catalyst support. In large-scale catalytic polyolefin production, the quality of the final product, as well as the process efficiency is crucially dependent on overall consistency, quality, and physico-chemical properties of the catalyst. As the catalyst particle experiences various stresses during the polymer particle growth, mechanical properties of catalyst play a key role in its performance in the polymerization process. However, there is currently a lack of experimental mechanical property measurements of micron-sized, spherical SiO2 particles relevant for the polyolefin catalyst production. In this work, compressive properties of commercial porous micro-spherical silicas were studied using a quasi-static micro-compression method. The method includes compressing single, micron-sized particles in controlled loading conditions. From the measurements, the compressive elastic–plastic properties of these particles can be determined.
KW - Catalysts
KW - Micro-compression
KW - Micro-spherical silica
UR - http://www.scopus.com/inward/record.url?scp=85079238637&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-36552-3_6
DO - 10.1007/978-3-030-36552-3_6
M3 - Conference article in proceedings
AN - SCOPUS:85079238637
SN - 978-3-030-36551-6
T3 - Minerals, Metals and Materials Series
SP - 57
EP - 66
BT - Advances in Powder and Ceramic Materials Science, TMS 2020
A2 - Li, Bowen
A2 - Baker, Shefford P.
A2 - Zhai, Huazhang
A2 - Monteiro, Sergio Neves
A2 - Soman, Rajiv
A2 - Dong, Faqin
A2 - Li, Jinhong
A2 - Wang, Ruigang
PB - Springer
T2 - Symposium on Advances in Powder and Ceramic Material Science held at the 149th Annual Meeting and Exhibition, TMS 2020
Y2 - 23 February 2020 through 27 February 2020
ER -