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Method of processing sample and determining element content

A technology of element content and content, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of difficult preparation of standard samples

Active Publication Date: 2020-11-24
SGIS SONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Based on the above-mentioned deficiencies, the application provides a method for processing samples and determining element content, to partially or completely improve or even solve the problem of difficult preparation of standard samples in the prior art, and use the processing method on this basis After the sample is determined for elements, it can effectively measure calcium oxide, magnesium oxide, silicon dioxide, sulfur, iron oxide, phosphorus pentoxide, manganese oxide, titanium oxide, potassium oxide and sodium oxide in the sample

Method used

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  • Method of processing sample and determining element content
  • Method of processing sample and determining element content
  • Method of processing sample and determining element content

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] 2. Preparation of samples to be tested

[0049] Step 1. (for the first time) weigh 0.40 g (accurate to 0.0001 g) of metallurgical lime to be tested, and put it into a crucible whose bottom has been paved with anhydrous lithium tetraborate. Then (for the second time) weigh 1.00 g (accurate to 0.0001 g) of anhydrous lithium tetraborate. Stir with a stirring wire to ensure that the raw material is evenly mixed with the lithium tetraborate weighed for the second time.

[0050] Step 2, adding anhydrous lithium tetraborate to cover the surface of the uniform mixture of anhydrous lithium tetraborate and metallurgical lime to be tested. The amount of anhydrous lithium tetraborate used to cover the surface is 2.00 to 3.00 grams (to the nearest 0.0001 gram).

[0051] The addition of covered lithium tetraborate is based on such considerations: in order to overcome the violent reaction of the metallurgical lime to be measured with a large amount of burning loss in the heating pro...

Embodiment

[0096] (1) Main equipment

[0097] 1.1. Main instruments and equipment

[0098] Axios type X-ray fluorescence spectrometer (end window rhodium target X-ray tube 4kW), Panalytical Instruments Company of the Netherlands; RYL-05 automatic melting furnace Luoyang Pruikangda Heat Resistance Test Equipment Co., Ltd.

[0099] (2) Reagents

[0100] Unless otherwise specified, use only approved reagents of analytical grade; use distilled water or water of equivalent purity, which should comply with the provisions of GB / T6682.

[0101] 2.1. Anhydrous lithium tetraborate, solid.

[0102] 2.2. Lithium bromide solution (1000g / L)

[0103] Slowly add 100g of lithium bromide into a 250mL beaker filled with about 40mL of distilled water, stir while adding the reagent, stir with a glass rod for 2-3min, then dilute the reagent solution to about 90mL, continue stirring until the reagent is completely dissolved, cool to room temperature, release To 100mL, stored in the reagent bottle for later...

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Abstract

The invention discloses a method of processing a sample and determining element content, and belongs to the field of metallurgical chemical analysis. The method for processing a sample comprises steps: providing an inert container; transferring a uniform mixture of the sample and anhydrous lithium tetraborate into the container; laying anhydrous lithium tetraborate on the surface of the mixture; injecting a lithium bromide solution into the container; after the container is closed, placing the container in a heating environment, and subjecting substances in the container to a melting reaction.Various defects of an existing X-ray fluorescence detection method can be effectively overcome by treating the sample in the mode, a detection method suitable for both quick lime and high-magnesium metallurgical quick lime is established, and acceleration of the detection speed becomes a problem urgently needed to be solved in the technical field of lime detection.

Description

technical field [0001] The application relates to the field of metallurgical chemical analysis, in particular, to a method for processing samples and determining element content. Background technique [0002] Metallurgical quicklime is generally divided into ordinary metallurgical quicklime and magnesia metallurgical quicklime (see 1 for each component). As a basic raw material for the iron and steel industry, it is very important to quickly and accurately detect lime components. [0003] Table 1 [0004] [0005] At present, the chemical composition in metallurgical quicklime is usually detected by wet chemical analysis. Among them, the determination of calcium oxide and magnesium oxide content often adopts EDTA volumetric method; the determination of sulfur content adopts combustion iodometric method or infrared absorption spectrometry; silicon dioxide adopts silicon molybdenum blue colorimetric method or perchloric acid dehydration gravimetric method; Chromium azure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223G01N23/2202
CPCG01N23/223G01N23/2202Y02P10/20
Inventor 邢文青肖命冬吴超超曾赞喜黄波王岩余雷黄合生尚聪亚陈颖刘红娣宁安宁张幸英曾霞
Owner SGIS SONGSHAN CO LTD
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