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Method for detecting content of silicon and phosphorus in ferromanganese alloy

A detection method and technology of ferromanganese alloy, applied in material excitation analysis, thermal excitation analysis, etc., can solve the problems of matrix effect, low silicon element, silicon tetrafluoride escape, etc., and achieve the effect of solving matrix effect

Inactive Publication Date: 2017-07-25
SD STEEL RIZHAO CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a detection method for measuring the content of silicon and phosphorus in ferromanganese alloys, avoiding the escape of silicon tetrafluoride generated when silicon is dissolved at high temperature, resulting in low silicon content, and solving the problem of only using standard solutions to draw calibration curves matrix effect

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  • Method for detecting content of silicon and phosphorus in ferromanganese alloy
  • Method for detecting content of silicon and phosphorus in ferromanganese alloy
  • Method for detecting content of silicon and phosphorus in ferromanganese alloy

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Embodiment Construction

[0012] The following are specific examples of the present invention, further describing the technical solutions of the present invention, but the protection scope of the present invention is not limited to these examples. All changes or equivalent substitutions that do not depart from the concept of the present invention are included in the protection scope of the present invention.

[0013] 1 Test part

[0014] 1.1 Main instruments and reagents

[0015] Inductively coupled plasma atomic emission spectrometer (American thermoelectric, model: iCAP6300)

[0016] Argon gas: 99.999%, high-purity water, nitric acid (ρ1.42g / mL 1+1), and hydrofluoric acid are all superior grades, phosphorus standard stock solution (National Iron and Steel Materials Testing Center): 1000ug / mL, silicon standard stock solution ( National Iron and Steel Material Testing Center): 1000ug / mL;

[0017] Calibration series solutions: Weigh two copies of 0.2000g GSB03-1316-2010, GSB03-1361-2001 and BH0304-7 ...

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Abstract

The invention relates to a method for detecting the content of silicon and phosphorus in ferromanganese alloy. The ferromanganese alloy is dissolved in nitric acid and hydrofluoric acid at a low temperature in the dissolving preparation process of a ferromanganese sample, so the disadvantage of low silicon element content caused by silicon tetrafluoride escaping during the high temperature dissolving of silicon is avoided; and a ferromanganese standard sample is adopted as a substrate, a proper amount of a series standard solution is added as a calibration solution, and a drawn calibrating work curve overcomes the disadvantage of too narrow of the content range of elements to be detected existing in the use of the ferromanganese standard sample, and effectively solves the matrix effect problem brought by a calibrating curve drawn by only using a standard solution.

Description

technical field [0001] The invention belongs to the field of inorganic detection, and in particular relates to a detection method for determining the content of silicon and phosphorus in ferromanganese alloy. Background technique [0002] In steelmaking, ferromanganese is used as a deoxidizer and alloy additive, and is one of the important raw materials for steelmaking. Traditionally, there are gravimetric and photometric methods for the analysis of silicon and phosphorus in ferromanganese, but the operation is cumbersome and the analysis period is long. [0003] There are many research reports on the analysis of silicon and phosphorus in ferromanganese by inductively coupled plasma emission spectroscopy (ICP-AES), and the analysis of silicon and phosphorus in ferromanganese by fusion sample preparation-X-ray fluorescence spectrometry has also been reported , but the platinum crucible used for fusion sample preparation is expensive. The simultaneous analysis of silicon and...

Claims

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Application Information

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IPC IPC(8): G01N21/73
CPCG01N21/73
Inventor 邵常丽曹西忠王者堂刘洪涛郭慧张英才杜宪伟
Owner SD STEEL RIZHAO CO LTD
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