Grinding methods to enhance the reactivity of olivine

Structural changes in olivine (Mg, Fe)2SiO4 mechanically activated in high-energy mills

“…Some large particles still exist but an overall reduction in size appears to have occurred as a result of high-energy milling. The attritor milled samples (b) show the most significant reduction in size which is in agreement with the results of olivine milling published in paper (Summers et al, 2005). In some cases (c, d) the evidence of well-bonded aggregates can be seen.…”

Investigation of milling energy input on structural variations of processed olivine powders for CO2 sequestration

“…Milling energy is known as one of the most effective parameters to control structural properties of materials [18,19,27]. In order to investigate the effect of milling energy input on the microstructural parameters of mechanically processed olivine powders, four different milling energy levels were applied during ball milling and the microstructural characteristics of as processed powders were examined.…”

“…The data points for a magneto ball mill in this work are presented as the average values with corresponding standard deviations. The median data point for the Fritsch Pulverisette 6 is from [29], for Hicom 15 nutating batch mill from [12] and for attritor from [27]. ▲ Attritor [27] □ Hicom 15 nutating 1 [12] ▼Laboratory mill [12] ■ Fritsch Pulverisette 6 (2) [30] ∆ Molinex PE 075 nutating [30] Specific surface area (SSA) Fig.…”

“…The data points for a magneto ball mill in this work are presented as the average values with corresponding standard deviations. The data for the Fritsch Pulverisette 6 (1) is from [29], for Hicom 15 nutating is from [12], for Fritsch Pulverisette 6 (2) is from [30], for Molinex PE 075 nutating mill is from [30], for attritor mill from [27] and for laboratory mill from [12]. 1 2) were considered in calculations and crystallite size was measured by the analysis of XRD profiles based on the peak broadening as a full width at a half-maximum (FWHM) factor.…”

“…Crystallite size for as received and mechanically processed samples was calculated from XRD peaks through two separate methods ▼ Fritsch Pulverisette 6 [29] ▲ Attritor [27] ■ Hicom 15 nutating [12] Median D50 or average particle size (µm)…”