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Infrared spectrum analysis process for measuring hydroxy radical content in natural quartz

A technology of infrared spectrum analysis and natural quartz, which is applied in the field of detection of natural quartz industrial performance, and can solve the problems of lack of identification methods for the hydroxyl content of quartz sand, etc.

Active Publication Date: 2007-10-03
JIANGSU PACIFIC QUARTZ
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  • Summary
  • Abstract
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Problems solved by technology

Under the current situation, the development and production of high-purity quartz sand urgently needed in my country is basically still blank, and there is a lack of identification methods for the hydroxyl content in quartz sand.

Method used

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  • Infrared spectrum analysis process for measuring hydroxy radical content in natural quartz
  • Infrared spectrum analysis process for measuring hydroxy radical content in natural quartz
  • Infrared spectrum analysis process for measuring hydroxy radical content in natural quartz

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Embodiment Construction

[0021] An infrared spectroscopic analysis method for hydroxyl content in natural quartz,

[0022] 1. Sample preparation:

[0023] Put the raw quartz ores of different qualities into the calcination furnace for heating and calcination. The calcination temperature: 600-900 degrees. Water quenching, after water quenching, the ore is air-dried, and after air-drying, the ore is crushed to make 60-150 mesh quartz sand;

[0024] According to the quality of the crushed quartz sand, it can be determined whether the sample needs to be processed. If the purity of the crushed quartz sand is low, the sample needs to be flotation / acid leaching to remove the impurities of the sample. If the purity of the crushed quartz sand is high, the sample preparation is complete.

[0025] Second, the test equipment:

[0026] Fourier infrared spectrophotometer,

[0027] 3. Establishment of standard samples and standard spectra of quartz sand with different hydroxyl content

[0028] 1) Select quartz...

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Abstract

The infrared spectrum analysis process for measuring hydroxyl radical content in natural quartz includes: selecting quartz glass tubes with different hydroxyl radical contents and measuring their transmitted spectrums with an infrared spectrophotometer; measuring the transmitted spectrums of prepared quartz sand samples and comparing with those of quartz glass tubes to obtain standard quartz sand samples and establish standard atlas; showing the transmission curves of the tested quartz sand and the standard quartz sand sample in the same scale and comparing to obtain the radical content in tested quartz sand. The present invention may be used in quartz sand producing process.

Description

technical field [0001] The invention relates to a method for detecting the industrial performance of natural quartz, in particular to an infrared spectrum analysis method for hydroxyl content in natural quartz. Background technique [0002] Quartz is a hard, wear-resistant, chemically stable natural mineral whose main chemical composition is SiO 2 , the color of quartz is milky white or colorless translucent, hardness 7, brittle without cleavage, shell-like fracture, grease luster, relative density is 2.65, its chemical, thermal and mechanical properties have obvious anisotropy, insoluble in Acid, slightly soluble in KOH solution, melting point 1750°C. As the core raw material of quartz glass materials, quartz sand plays an irreplaceable and important basic role in its production and supply. Quartz glass has high requirements on the purity of quartz sand. The impurities in the high-purity quartz sand include not only the elemental impurities, but als...

Claims

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Application Information

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IPC IPC(8): G01N21/27
Inventor 陈士斌
Owner JIANGSU PACIFIC QUARTZ
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