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Method for detecting silicon and device thereof

A measurement method and a technology of a measurement device, applied in the direction of analyzing materials, instruments, etc., to achieve high accuracy, expand the measurement range, and improve the accuracy

Active Publication Date: 2012-05-09
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, this method has certain disadvantages

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  • Method for detecting silicon and device thereof
  • Method for detecting silicon and device thereof
  • Method for detecting silicon and device thereof

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Embodiment Construction

[0028] A method for the determination of elemental silicon, which uses the property of hydrogen gas generated under the heating conditions of elemental silicon and dilute alkali solution, and calculates the content of elemental silicon according to the volume of hydrogen generated; the conditions that need to be met are: the initial temperature of the reaction, pressure and reaction The temperature and pressure of the final state are the same.

[0029] See Figure 1-Figure 4 , elemental silicon determination device, including a constant temperature device 1, a spherical condenser tube 2, a condenser jacket 3, a gas measuring tube 4, a reference tube 7, a level bottle 8, a gas storage bottle 9, a water bath 10, an Erlenmeyer flask 11, a level 12, The condensation jacket 3 and the gas measuring tube 4 are installed and fixed by the fixing clip 5, and the gas measuring tube 4 can be disassembled through the pistons arranged at the upper and lower ends, and the gas measuring tubes...

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Abstract

The invention relates to a method for detecting silicon and a device thereof; the method comprises the following step of: calculating the content of silicon through the volume of hydrogen gas generated according to the characteristic that silicon and diluted alkaline solution generate hydrogen gas under the condition of heating; and the satisfactory conditions are as follows: the initial temperature and pressure of action are the same as the final temperature and pressure after reaction. The device comprises a ball condenser pipe, a eudiometer, a reference pipe, a leveling bottle, a gas cylinder, a water bath, a conical beaker and a thermostatic apparatus; a condenser jacket is arranged outside the eudiometer; the thermostatic apparatus, the ball condenser pipe, the condenser jacket and the water bath are communicated with each other through connecting pipes in sequence to form a circulating condenser system. The method and the device can efficiently improve the determination precision of silicon, and can be used for detecting the silicon with different contents, thereby enlarging the determination range.

Description

technical field [0001] The invention relates to a method and a device for measuring elemental silicon. Background technique [0002] Industrial silica fume is often used as an additive in many composite refractory materials, but the existing national standard method for detecting industrial silica fume is only suitable for block products with elemental silicon content higher than 99.6%, while the commonly used grade of refractory materials is 95%. %, sometimes industrial silicon is also mixed with other materials, especially when industrial silicon is mixed with other siliceous materials (such as: quartz sand), if the existing national standard analysis method is used, it will lead to serious errors in the inspection results, which are fundamental It is impossible to accurately detect the exact content of elemental silicon in the sample. If the properties of hydrogen gas generated under the heating condition of elemental silicon and dilute alkali solution are used, the cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N7/18
Inventor 翟晓东杨义刘凤振
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC