Method for detecting content of impurities in titanium sponge

A technology of impurity content and detection method, which is used in chemical analysis, thermal excitation analysis, material excitation analysis and other directions using titration method, can solve the problems of low sensitivity, low analysis speed, complicated and tedious operation of detection methods, etc. Simple steps and simple detection principle

Pending Publication Date: 2018-06-29
SHENWU TECH GRP CO LTD
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Problems solved by technology

However, the existing sponge titanium impurity detection technology for the product obtained by the integrated method of magne

Method used

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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] The method of the invention is used for determining the sponge titanium prepared by the integrated method of magnesia thermal reduction-vacuum distillation. The principle of magnesia thermal reduction-vacuum distillation integrated titaniummaking process is as follows: metal magnesium and TiCl 4 As raw material, TiCl under vacuum 4 Heating to 750-850°C to vaporize TiCl 4 The steam is passed into the molten metal magnesium, and the temperature in the reaction chamber is increased through the combustion system; the titanium tetrachloride heating tank is started, and the titanium tetrachloride gas is sent into th...

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Abstract

The invention provides a method for detecting the content of impurities in titanium sponge. The method comprises the following steps: 1) weighing titanium sponge, and recording the initial mass of thetitanium sponge; 2) wiping the titanium sponge for removing TiCl4, weighing the wiped titanium sponge, and recording the mass; 3) adding ethanol and a catalyst, performing heating to the preset temperature, and measuring the quantity of the generated gas; 4) adding an acid indicator, and performing titration with acid till the end point of titration; 5) performing filtration for removing insoluble substances, and equally dividing the solution into three parts; 6) adding a metal indicator to the first part of the solution, and performing titration with EDTA (Ethylene Diamine Tetraacetic Acid)till the end point of titration; 7) adding mercury nitrate to the second part of the solution, and performing titration; 8) measuring the content of all Ti elements in the third part of the solution;and 9) calculating the content of all impurities according to the consumption of related substances. The method provided by the invention has the advantages that the needed detection equipment is simple, detection steps are simple, and the content of all substances can be obtained by measuring the content of Mg, Cl and Ti.

Description

technical field [0001] The invention relates to a method for measuring impurity content in sponge titanium, which is applied to the detection of products obtained by magnesia thermal reduction of titanium tetrachloride in a small atmosphere furnace. Background technique [0002] At present, the industrial method of titanium metal production is the Kroll method. In the production process, titanium-containing minerals (rutile, high-titanium slag, etc.) are chlorinated (shaft furnace chlorination, molten salt chlorination, boiling chlorination, etc.) to produce TiCl 4 , and then use the magnestic reduction method to reduce the TiCl 4 It is converted into a single substance form, and then the reduced product is processed by vacuum distillation to remove volatile impurities to obtain a titanium sponge product. The process of preparing titanium sponge by this method belongs to batch production, which fails to realize the continuous production, and the production takes a long tim...

Claims

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Application Information

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IPC IPC(8): G01N31/16G01N21/73
CPCG01N31/16G01N21/73
Inventor 李康王晶晨郭科宏安宾王东方吴道洪
Owner SHENWU TECH GRP CO LTD
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