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Effect of Milling Methods on Particulate Properties and Structure of Clinoptilolite
Author(s) -
Nguyen Vinh Dinh,
Bui Quy Minh,
Kynicky Jindrich,
Vsiansky Dalibor
Publication year - 2020
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201900180
Subject(s) - crystallinity , clinoptilolite , ball mill , materials science , scanning electron microscope , wet milling , particle size , particle size distribution , diffraction , particulates , desorption , chemical engineering , specific surface area , adsorption , mineralogy , analytical chemistry (journal) , composite material , metallurgy , chemistry , chromatography , optics , zeolite , organic chemistry , physics , engineering , catalysis
The effects of ultrasonic milling, dry and wet ball milling, and vibro‐milling on the particulate properties, crystalline characteristics, morphology, and surface area of clinoptilolite (Cpt) have been investigated. Laser beam scattering technique, X‐ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorption/desorption at 77 K are used to characterize the initial and ground Cpt powders. Results show that Cpt particle size is significantly reduced by all carried out milling methods in which vibro‐milling could produce particles with diameter less than 100 nm. The size distribution of Cpt is remarkably narrowed by using vibro‐ and wet ball milling. The crystallinity of Cpt noticeably decreases for the samples obtained by ball milling while vibro‐ and ultrasonic millings show a negligible effect on crystallinity. The specific surface area of Cpt is enhanced by all four milling methods.