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With the symbols already explained, in particular ‘Vol’ is the crucible volume. In the following figure is reported the shape, with dimensions, to which the crucible has been assimilated:

Figure 7 With the symbols already explained, in particular ‘Vol’ is the crucible volume. In the following figure is reported the shape, with dimensions, to which the crucible has been assimilated:

Related Figures (10)

FIGURE 1 - Loss in weight of the initial mixture during the synthesis run. Sodalite was studied by Infra Red Spectrometry (IR) using a spectrometer Varian 1000 Scimitar served by a separator of KBr. The source of IR radiation was a SiC (Globar) filament. Samples were treated following the
FIGURE 1 - Loss in weight of the initial mixture during the synthesis run. Sodalite was studied by Infra Red Spectrometry (IR) using a spectrometer Varian 1000 Scimitar served by a separator of KBr. The source of IR radiation was a SiC (Globar) filament. Samples were treated following the
FIGURE 2 - XRD sequence of the synthetic run. Legend: sod (sodalite), nef (nepheline), carneg (carnegieite), hal (halite). surfaces orthogonal to x axis and a radial symmetry are supposed. Thus the following 1D simplified initial-boundary problem yields: In order to apply an analytical approach, we assumed the following simplified statements:
FIGURE 2 - XRD sequence of the synthetic run. Legend: sod (sodalite), nef (nepheline), carneg (carnegieite), hal (halite). surfaces orthogonal to x axis and a radial symmetry are supposed. Thus the following 1D simplified initial-boundary problem yields: In order to apply an analytical approach, we assumed the following simplified statements:
TABLE 1 - Chemical analysis of the precursor material. LOI is loss on ignition at 950 ° C after 2 hours of calcination in oxidant envi- ronment; tr means traces. Mineralogical, crystallographical, chemical and textural char- acterisation of sodalite
TABLE 1 - Chemical analysis of the precursor material. LOI is loss on ignition at 950 ° C after 2 hours of calcination in oxidant envi- ronment; tr means traces. Mineralogical, crystallographical, chemical and textural char- acterisation of sodalite
FIGURE 3 - SEM image of sodalite crystals synthesized. pearance is proved at about 171 hours. The beginning of the progressive transformation of sodalite into nepheline is evidenced at about 171 hours.
FIGURE 3 - SEM image of sodalite crystals synthesized. pearance is proved at about 171 hours. The beginning of the progressive transformation of sodalite into nepheline is evidenced at about 171 hours.
TABLE 2 - Refined cell parameters of the synthesized minerals. (*): Sodalite by Hassan et al. [15] (**): Halite by Finger and King [16]; (***) Carnegieite by Borchert and Keidel [17].
TABLE 2 - Refined cell parameters of the synthesized minerals. (*): Sodalite by Hassan et al. [15] (**): Halite by Finger and King [16]; (***) Carnegieite by Borchert and Keidel [17].
TABLE 3 - Chemical analysis of the synthesized sodalite.
TABLE 3 - Chemical analysis of the synthesized sodalite.
FIGURE 4 - Rietveld refinement of sodalite XRD pattern at 70h. Crosses represent experimental XRD data; the full line indicates the calculated XRD path; the difference between the experimental and the calculated XRD pattern is reported on the lower part of the figure
FIGURE 4 - Rietveld refinement of sodalite XRD pattern at 70h. Crosses represent experimental XRD data; the full line indicates the calculated XRD path; the difference between the experimental and the calculated XRD pattern is reported on the lower part of the figure
TABLE 4 - Symmetric and asymmetric stretch, double rings and T-O bond for sample at 70h. (*) HS by Flaningen et al., 1971; M: medium; S: strong; MW: medium weak; VS: very strong
TABLE 4 - Symmetric and asymmetric stretch, double rings and T-O bond for sample at 70h. (*) HS by Flaningen et al., 1971; M: medium; S: strong; MW: medium weak; VS: very strong
FIGURE 6 - Mathematical modeling of the chlorine loss.
FIGURE 6 - Mathematical modeling of the chlorine loss.
Related topics:
Synthesis of nanoparticlesSilicate mineralogySynthesis of Zeolites
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