Method for Determination of Carbon and Sulfur Content in Ferroalloy by Different Standard Calibration Infrared Absorption Method
A technology of infrared absorption and infrared carbon and sulfur analysis, which is applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problem that the iron alloy standard sample cannot meet the analysis standards, and achieve the effect of accurate analysis results
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[0017] In the embodiment of the present invention, the principle of using an infrared carbon-sulfur analyzer to determine a ferroalloy sample is: the ferroalloy sample is heated by a high-frequency furnace in an oxygen stream, and carbon and sulfur respectively generate CO 2 And SO 2 , Part of CO is generated, and after filtering and dehumidifying with oxygen as carrier gas, it enters SO 2 Infrared absorption cell, determination of sulfur content; determination of SO 2 After the gas, through the catalytic furnace, the CO is converted into CO 2 , Then desulfurization, enter CO 2 The infrared cell measures the carbon content.
[0018] In the embodiment of the present invention, the reagents and instruments used are preferably:
[0019] Pure iron flux: C: <0.0005%, S: <0.0005%;
[0020] Pure tin flux: C: <0.0005%, S: <0.0005%;
[0021] Tungsten flux: C: <0.0005%, S: <0.0005%;
[0022] Vanadium pentoxide: analytically pure, C: <0.0005%, S: <0.0005%;
[0023] Crucible: special crucible for in...
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