Method for measuring chlorine content in sponge zirconium

Abstract

The invention provides a method for measuring the chlorine content in sponge zirconium. The method comprises the following steps: firstly, preparing a sponge zirconium sample solution X, preparing a sponge zirconium sample diluted solution Y, activating an H column, preparing a sample on-machine test solution Z and the like. A sample is prepared into the solution capable of being measured on an ion chromatograph, so zirconium in the sponge zirconium solution to prevent the chromatographic column from being polluted; the prepared series of working curve standard solutions containing different chlorine contents can cover the analysis of the conventional content of chlorine in the zirconium sponge; and the working curve standard solution and the sample on-machine test solution are respectively tested under the determined working condition of the ion chromatograph, so that fluorine ions and chloride ions are perfectly separated. A working curve is established according to the peak areas and the concentrations of the Cl<-> standard solutions, and the percentage content of chlorine in the zirconium sponge can be accurately obtained according to the measured chromatographic peak area of chlorine ions in the test solution of the zirconium sponge sample on the machine, so that the measurement time is saved, and scientific research and production requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of analysis and testing, and in particular relates to a method for determining chlorine content in sponge zirconium. Background technique [0002] Titanium alloys are widely used in the fields of ships, aviation, aerospace, weaponry and other fields due to their excellent properties such as high strength and good corrosion resistance. The composition and production process of titanium alloy affect its performance. Chlorine is an impurity, which also affects the performance of titanium alloy. For example, chlorine pollutes the vacuum system during ingot casting and affects the service life of equipment. The presence of chlorine in zirconium sponge, the raw material for titanium alloy production, is one of the factors that introduce chlorine into titanium alloy. In addition to being used as a raw material for titanium alloys, zirconium sponge is also used to make bulletproof alloy steel, cladding alloys for u...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing determination method of chlorine content in zirconium sponge cannot measure the chlorine content greater than 0.03% in zirconium sponge and cannot meet the production requirements, the present invention provides a method for the determination of chlorine content in zirconium sponge. The purpose of the present invention is to It is to establish a rapid ion chromatography method for the determination of chlorine in sponge zirconium by solving major technical problems such as serious pollution of the chromatographic column caused by zirconium heavy metals, causing the failure of the expensive chromatographic column, and the measurement of fluorine interference. Wide, can analyze the chlorine content of 0.009 ~ 3.00%, the analysis speed is fast, the result is accurate and reliable, and can meet the needs of production and scientific research