Correlation between particle size and surface area for chlorite and K-feldspar
2010 (English)In: Water-Rock Interaction - Proceedings of the 13th International Conference on Water-Rock Interaction, WRI-13 / [ed] P. Birkle, I.S. Torres-Alvorado, 2010, 717-720 p.Conference paper (Refereed)
The specific surface area as determined by BET analysis is often used for scaling mineral surface reaction capacities and rates between particles of different sizes as found in nature. Generally, an inverse proportionality between BET area and particle size is assumed, based on geometry. However, macroscopic laboratory studies of mineral surface reactions generally employ crushed material that may have been mechanically disturbed, potentially leading to an artificial increase in the specific surface area, and a change in the apparent surface reactivity. In this study, we determine the BET area for natural K-feldspar and chlorite samples from Sweden as function of particle size in a first step towards relating the surface reactivity for these minerals to grain size.
Place, publisher, year, edition, pages
2010. 717-720 p.
BET analysis, Crushed materials, Different sizes, Grain size, K-feldspar, Laboratory studies, Particle size and surfaces, Surface reactivity
IdentifiersURN: urn:nbn:se:kth:diva-41536ScopusID: 2-s2.0-84860204698ISBN: 978-041560426-0OAI: oai:DiVA.org:kth-41536DiVA: diva2:444476
13th International Conference on Water-Rock Interaction, WRI-13; Guanajuato; Mexico; 16 August 2010 through 20 August 2010
QC 201109292011-09-292011-09-292014-09-03Bibliographically approved