Sample pretreatment method for detecting chlorine content in magnesium oxide

By adopting a combined dissolution process of magnetic stirring and ultrasonic wave during the acid dissolution process of magnesium oxide samples, the problems of volatile, agglomeration and precipitation of silicic acid in the detection of chlorine content in magnesium oxide are solved, and rapid and accurate dissolution and detection results are achieved.

CN120213576APending Publication Date: 2025-06-27武汉钢铁有限公司
0 Cites 0 Cited by

Patent Information

Application Number
CN202510382704.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-06-27

AI Technical Summary

Technical Problem

When the prior art detects the chlorine content in magnesium oxide, chloride ions volatilization, agglomeration and precipitation of silicate acid during the acid dissolution process, making it difficult to guarantee the accuracy of the detection results.

Method used

The combined dissolution process of magnetic stirring and ultrasonic wave is adopted to prevent agglomeration or deposition during the acid dissolution process, and the sample is quickly and completely dissolved through ultrasonic wave to avoid precipitation of silica acid.

Benefits of technology

This method can quickly complete the dissolution of magnesium oxide samples, prevent chloride ion volatilization and precipitation of silicates, ensure the accuracy of subsequent test results, significantly shorten the dissolution time and improve the dissolution efficiency.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention belongs to the technical field of analysis and detection, and discloses a sample pretreatment method for detecting the chlorine content in magnesium oxide, which comprises the following steps: 1) accurately weighing a magnesium oxide sample with the particle size of less than or equal to 5 mu m, and putting the magnesium oxide sample into a container until the weighing accuracy is 0.0001 g; 2) adding ultrapure water along the inner wall of the container, and infiltrating the sample with the ultrapure water for 5-8 seconds; (3) 1 + 1 nitric acid is added, magnetic stirring is immediately carried out, the stirring speed is 300-400 r / min, and the stirring time is 10-30 s; and (4) then carrying out ultrasonic dissolution at the dissolution temperature of 15-35 DEG C for 60-120 seconds to finish pretreatment of the magnesium oxide sample so as to obtain a to-be-detected solution for detecting the chlorine content in magnesium oxide. According to the method, a magnetic stirring and ultrasonic combined dissolving process is adopted in the acid dissolving process, magnesium oxide samples can be rapidly dissolved, the problems of chloride ion volatilization, caking and silicic acid precipitation in the dissolving process are avoided, the accuracy of subsequent detection results is guaranteed, and the method has important practical value.
Need to check novelty before this filing date? Find Prior Art