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A kind of icp-aes for rapid determination of mno in metal manganese powder 2 Methods

An ICP-AES, metal manganese powder technology, applied in the preparation of test samples, material excitation analysis, thermal excitation analysis, etc., can solve the problem of not detecting manganese dioxide, hindering metal manganese powder, affecting the purity and activity of the final product and other problems, to achieve the effect of high practical value, high precision, and low detection limit

Active Publication Date: 2022-01-11
SINOSTEEL NANJING NEW MATERIALS RES INST CO LTD +1
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Problems solved by technology

Because a small amount of manganese dioxide exists in the metal manganese powder, it will have an adverse effect on the synthesis of manganese tetraoxide: it will hinder the complete conversion of the metal manganese powder into manganese tetraoxide, which will seriously affect the purity and activity of the final product.
[0003] At present, there is no relevant bibliographical report on the method for detecting manganese dioxide in metal manganese powder. Before that, the iodometric method was used to measure manganese dioxide in manganese ore, such as Peng Hong et al. Metallurgy, Vol.31No.4) introduced its determination method in detail

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  • A kind of icp-aes for rapid determination of mno in metal manganese powder <sub>2</sub> Methods
  • A kind of icp-aes for rapid determination of mno in metal manganese powder <sub>2</sub> Methods
  • A kind of icp-aes for rapid determination of mno in metal manganese powder <sub>2</sub> Methods

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with embodiment. The described examples and their results are only for illustrating the invention, but should not and will not limit the invention as detailed in the claims.

[0018] Instruments used in the experiment: Inductively Coupled Plasma Emission Spectrometer: avio200 from PerkinElmer, USA; Electronic Universal Furnace: Tianjin Test Instrument Co., Ltd.

[0019] Reagents used in the experiment: manganese element standard solution: concentration 1000 μg / mL, purchased from Iron and Steel Materials Testing Center Iron and Steel Research Institute; hydrochloric acid: high-grade pure; argon: purity ≧ 99.99%; experimental water is ultrapure water.

[0020] The method for rapidly detecting manganese dioxide in manganese powder with CP-AES, described method comprises the steps:

[0021] (1) Preparation of sample solution: Weigh 0.5000g of metal manganese powder, accurate to 0.1mg, put it in a 100mL be...

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Abstract

The invention belongs to the field of quantitative analysis in analytical chemistry, in particular to an inductively coupled plasma emission spectrometer (ICP-AES) to quickly detect MnO in metal manganese powder 2 The method uses the characteristics that manganese dioxide is insoluble in dilute sulfuric acid, and other oxides of metal manganese and manganese are easily soluble in dilute sulfuric acid. Manganese dioxide is separated from metal manganese powder, and after filtration, hydrogen peroxide is added to dissolve the solid, and then use Inductively coupled plasma spectrometer for rapid determination of manganese dioxide content in metal manganese powder.

Description

technical field [0001] The invention belongs to the field of quantitative analysis in analytical chemistry, in particular to a method for quickly detecting MnO in metal manganese powder by using an inductively coupled plasma emission spectrometer (ICP-AES) 2 Methods. Background technique [0002] In order to meet the requirements of the rapid development of the electronics industry and ensure the quality of soft ferrite, it is necessary to reduce the impurity content of manganese tetraoxide, improve the purity, and increase the specific surface area. In actual production, in order to achieve the requirements of simple operation, large production capacity, low energy consumption, and no environmental pollution, the selection of raw materials is more stringent. What is widely used at present is to synthesize trimanganese tetraoxide with metal manganese powder as raw material. Because a small amount of manganese dioxide exists in the metal manganese powder, it will have an ad...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/73G01N1/28
CPCG01N21/73G01N1/28
Inventor 张倩倩裴晓东骆艳华佘世杰刘晨
Owner SINOSTEEL NANJING NEW MATERIALS RES INST CO LTD
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