Method for detecting contents of main metal elements in silicate materials

A technology of metal element content and detection method, which is applied in the direction of analyzing the material by chemical reaction and material analysis by observing the influence on the chemical indicator, can solve the problems of high cost and cumbersome detection method, and achieve operability Strong, fast and easy detection, the effect of less detection equipment

Active Publication Date: 2014-09-03
NANJING TRANSCENDENT NEW MATERIALS TECH CO LTD
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Problems solved by technology

[0002] Silicate materials are currently used in a wide range, involving building materials, glass, ceramics and other industries. The content of various trace elements in raw materials will directly affect the application of silicate materials in various industries, and the current conventional detection methods are cumbersome. Rely on high-end detection instruments such as chromatography or mass spectrometer for detection, which is expensive

Method used

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  • Method for detecting contents of main metal elements in silicate materials
  • Method for detecting contents of main metal elements in silicate materials
  • Method for detecting contents of main metal elements in silicate materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Preparation of samples to be tested:

[0018] 1.1 The first-class fly ash sample of the power plant is carefully ground into a powder (100 mesh) in a grinding bowl, then accurately weigh 4.9976 grams of the sample powder, and put it into a 400ml beaker.

[0019] 1.2 Add 100ml of 2mol / L hydrochloric acid solution dropwise into the beaker and stir for 10 minutes.

[0020] 1.3 When the bubbles from the solution have diminished, heat carefully to a boil.

[0021] 1.4 After 10 minutes, carefully add 50ml of 2mol / L hydrochloric acid solution, and carefully heat for 5 minutes below the boiling point.

[0022] 1.5 Filter the solution immediately in a suction filter flask and wash the precipitate 3 times with boiled deionized water.

[0023] 1.6 Transfer the filtered solution to a 500ml volumetric flask.

[0024] 1.7 Transfer the filtered precipitate to a beaker, then add 100ml of sodium carbonate solution (50gNa 2 CO 3 / 1000ml) stirring, heated to 50 degrees for 15 mi...

Embodiment 2

[0078] Using the same method as in Example 1, the blast furnace slag obtained from Maanshan Iron and Steel Co., Ltd. is subjected to titration treatment, and the contents of each metal are obtained as follows:

[0079] Fe 2 o 3 Content 0.69%

[0080] al 2 0 3 Content 17.44%

[0081] CaO content 38.71%

[0082] MgO content 8.07%,

[0083] Calibration was performed using ICP-MS (Inductively Coupled Plasma Mass Spectrometry) analysis. In the sample blast furnace slag, the detection results by IPC-MS are as follows:

[0084] Fe 2 o 3 Content 0.72%

[0085] al 2 0 3 Content 17.24%

[0086] CaO content 37.04%

[0087] MgO content 7.83%

[0088] Compared with the detection result obtained by the titration method of the present invention, the error is between -5% and +5%.

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Abstract

The invention discloses a method for detecting trace elements in silicate materials, which is simple and is strong in operability. The detection method comprises the steps of: (1) preparing a sample to be detected; (2) determining EDTA influence factors; and (3) determining the contents of metal elements such as iron, magnesium, calcium or aluminium. The detection method provided by the invention comprises the step of detecting an iron element, a magnesium element, calcium element and an aluminium element. The detection method disclosed by the invention has the advantages that fast and simple detection for trace metal elements such as iron, magnesium, calcium and aluminium in primary coal ash, blast-furnace slag, volcanic ash and the like, less detection devices are used and the cost is low.

Description

technical field [0001] The invention relates to a method for detecting the content of main metal elements in silicate materials. Background technique [0002] Silicate materials are currently used in a wide range, involving building materials, glass, ceramics and other industries. The content of various trace elements in raw materials will directly affect the application of silicate materials in various industries, and the current conventional detection methods are cumbersome. Relying on high-end detection instruments such as chromatographs or mass spectrometers for detection is expensive. Contents of the invention [0003] The invention provides a simple and highly operable detection method for trace elements in silicate materials, including detection of iron, magnesium, calcium, aluminum and the like. [0004] The detection method of main metal element content in a kind of silicate material of the present invention comprises the following steps: [0005] (1) Preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 郭涛黄智锋徐海棠刘芳芳
Owner NANJING TRANSCENDENT NEW MATERIALS TECH CO LTD
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