A method for quantitative analysis of minerals in coal char
A quantitative analysis and mineral technology, applied in the field of quantitative analysis of minerals in coal char, can solve the problems of few types of minerals, complex chemical methods, long period of quantitative analysis, etc., to achieve the effect of improving accuracy
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Embodiment 1
[0093] 1) Select Nantong coal (NT), grind it to a particle size of less than 74 μm, and conduct XRD analysis to obtain the XRD pattern of the coal sample as follows Figure 2a shown. The Nantong coal sample was analyzed by transmission electron microscope, and the spatial structure of Nantong coal was obtained. The XRD pattern of Nantong coal is analyzed nonlinearly, and the function model of XRD pattern is obtained. After analyzing the data in the XRD spectrum, the types of minerals in Nantong coal are shown in Table 1.
[0094] Table 1 Mineral types in Nantong coal
[0095]
[0096] 2) Look up the spatial structure and diffraction patterns of the minerals obtained in Table 1 in the inorganic crystal structure database and the standard PDF card of XRD, perform function analysis on the spectra of a single mineral, and establish a corresponding function model of a single mineral ; Analyze the crystal orientation and various spatial properties of a single mineral.
[0097...
Embodiment 2
[0105] 1) Select the coke sample (NTC) smelted from Nantong Coal Institute, grind it to a particle size of less than 74 μm, and perform XRD analysis to obtain the XRD pattern of the coke sample as follows: Figure 2b shown. The coke smelted from Nantong Coal Institute was analyzed by transmission electron microscope, and the spatial structure of the coke was obtained. The XRD pattern of coke was analyzed nonlinearly, and the function model of the XRD pattern was obtained. The data in the XRD spectrum were analyzed, and the types of minerals in the coke were obtained as shown in Table 3.
[0106] Table 3 Mineral species in coke produced by Nantong Coal Institute
[0107]
[0108] 2) Look up the spatial structure and diffraction spectrum of the minerals obtained in Table 3 in the inorganic crystal structure database and the standard PDF card of XRD, perform functional analysis on the spectrum of a single mineral, and establish a corresponding functional model; analyze a singl...
Embodiment 3
[0117] 1) Select the permanent blend coal (YH), grind it to a particle size of less than 74 μm, and perform XRD analysis to obtain the XRD pattern of the permanent blend coal as follows Figure 2c shown. The transmission electron microscope analysis was carried out on the perpetually mixed coal samples, and the spatial structure of the perpetually mixed coal was obtained. The function model of the XRD spectrum is obtained by nonlinear analysis of the XRD spectrum of the perpetually blended coal. The data in the XRD spectrum were analyzed, and the types of minerals in the permanent mixed coal were obtained, as shown in Table 5.
[0118] Table 5 Mineral types in permanent blended coal
[0119]
[0120] 2) Look up the spatial structure and diffraction spectrum of the minerals obtained in Table 5 in the inorganic crystal structure database and the standard PDF card of XRD, perform functional analysis on the spectrum of a single mineral, and establish a corresponding functio...
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