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Quantitative measuring and calculating method for clay mineral with coincident characteristic peak
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A technique for clay minerals, mineral components, used in materials analysis using radiation diffraction, etc.
Active Publication Date: 2013-07-10
中国高岭土有限公司
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[0004] The purpose of the present invention is to provide a method for quantitative calculation of clay mineral components aimed at the overlap of characteristic peaks, and its purpose is to solve the problem that the traditional instrument identification method can only semi-quantitatively determine the content of minerals in clay minerals
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Embodiment 1
[0145] Example 1: A quantitative calculation method for clay mineral components aimed at the overlapping of characteristic peaks
[0146] Take a clay mineral sample called ball soil. First detect the content of oxides in the ball soil and the content of some mineral components in the ball soil, and then calculate the content of each mineral component in the ball soil according to the composition characteristics of the clay minerals;
[0147] The specific content consists of the following three parts:
[0148] The first part, detection of oxide content in clay mineral samples
[0149] According to Chinese national standard GB / T 14563-2008 kaolin and its test method, detect SiO in ball clay 2 、Al 2 o 3 、K 2 O, Na 2 O content, get SiO in ball soil 2 The mass percentage is a%=50.69%, Al 2 o 3 The mass percentage of c%=34.66%, K 2 The mass percentage of O is d%=2.45%, Na 2 The mass percentage of O is e%=0, Fe 2 o 3 The mass percentage is b%=0.18; the chemical composit...
Embodiment 2
[0245] Example 2: A quantitative calculation method for clay mineral components with overlapping characteristic peaks
[0246] Take a clay mineral sample named YD15. First detect the content of oxides in YD15 and the content of some mineral components in YD15, and then calculate the content of each mineral component in YD15 according to the composition characteristics of clay minerals;
[0247] The specific content consists of the following three parts:
[0248] The first part, detection of oxide content in clay mineral samples
[0249] According to Chinese national standard GB / T 14563-2008 kaolin and its test method, detect SiO in YD15 2 、Al 2 o 3 、K 2 O, Na 2 O content, get SiO in YD15 2 The mass percentage is a%=48.43%, Al 2 o 3 The mass percentage of c%=36.36%, K 2 The mass percentage of O is d%=1.45%, Na 2 The mass percentage of O is e%=0.02%, Fe 2 o 3 The mass percentage of is b%=0.8%; the chemical composition content of YD15 is shown in Table 6.
[0250] ...
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Abstract
The invention relates to a quantitative measuring and calculating method for clay minerals with coincident characteristic peaks, which is characterized in that: firstly, according to China National Standard GB / T14563-2008 kaolin and a test method thereof, the oxide content in a clay mineral sample is detected, the contents of a part of mineral components in the clay mineral sample are analyzed based on the X-raydiffraction, and contents of the mineral components in the clay mineral are obtained by calculation according to the composition characteristics of the clay mineral. The measuring and calculating method provided by the invention is relatively simple, rapid, accurate, cost-saving, and can quantitatively measure the contents of the clay mineral components especially in case of overlapping characteristic peaks.
Description
[0001] technical field [0002] The invention relates to a method for measuring components and contents in clay minerals, in particular to a method for quantitatively calculating clay mineral components aimed at overlapping characteristic peaks. Background technique [0003] Clay minerals are the main minerals that make up clay rocks and soils. They are some hydrous silicate minerals mainly containing aluminum and magnesium. Natural clay is usually not a single mineral, but a mixture of various minerals, among which the most frequently occurring minerals are kaolinite, feldspar and mica, in addition to free quartz and impurities. The traditional methods for identifying clay minerals mainly include X-raydiffraction (XRD for short), scanning electron microscope analysis, transmission electronmicroscope analysis, infrared absorption spectrum analysis and thermal analysis. Among them, XRD can preliminarily determine the composition and content of minerals in clay minerals sem...
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