Method for measuring content of titanium dioxide in titanium concentrate

A technology of titanium dioxide and titanium concentrate, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. It can solve the problems of easy splashing, corroded corundum crucible, and difficult temperature control. question

Active Publication Date: 2013-01-09
武定国钛金属有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

However, in actual operation, it is found that the temperature is not easy to control when melting the sample, and it is easy to splash
And since sodium peroxide Na 2 o 2 The strong alkaline and strong oxidizing corundum crucible is easily corroded, and it is very easy to break when it is used for the second or third time, and the sample leaks out, resulting in the failure of the experiment
In actual production, due to the large amount of analytical samples, this method has certain problems

Method used

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  • Method for measuring content of titanium dioxide in titanium concentrate

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Embodiment Construction

[0018] The present invention is implemented according to the following technical solutions

[0019] 1) Weighing: first place 1g of zinc powder in a 9ml corundum crucible, weigh 0.3000g (m) of the sample (do a blank test with the sample, the amount of ammonium ferric sulfate standard solution consumed by the blank test is V0) and place it on the zinc powder , Add sodium hydroxide (about 1g) according to 3 times the sample amount, completely cover the sodium hydroxide with 2g of zinc powder, and then evenly cover the surface with 0.1~0.2g of sodium chloride.

[0020] 2) Melting sample: put the crucible in 1) in a muffle furnace at 400°C and heat it up to 820°C for 10 minutes, then take it out and cool it.

[0021] 3) Sample dissolution: Put the sample in 2) together with the crucible into a triangular flask (500ml) filled with 100ml of hydrochloric acid solution (volume ratio to water: 1:1). After the reaction is over, add 40ml of sulfuric acid solution ( The volume ratio of wa...

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Abstract

The invention provides a method for measuring content of titanium dioxide in titanium concentrate. The method comprises the following steps of: melting a sample through zinc powder-sodium hydroxide, wherein most of the Ti4+ is reduced into Ti3+ through the zinc powder during melting; reducing the rest Ti4+ into Ti3+ through little Al powder by isolating the air under the medium of hydrochloric acid and sulfuric acid; and titrating through the ammonium sulfate standard solution with the ammonium thiocyanate served as an indicator. Compared with a traditional Panzhihua steel method, the method provided by the invention improves repeated using time of a corundum crucible to 2 to 3 times, and reduces quantity of a reducing agent of 1g; and the method is precise in result, and can meet a requirement on production.

Description

technical field [0001] The invention relates to a method for measuring TiO in titanium concentrate 2 The content method belongs to the field of analysis and testing in titanium slag smelting. Background technique [0002] The main component of titanium ore is ilmenite FeTiO 3 , Titanium magnetite [Fe(FeTi)O 4 】Wait. Mainly based on local ore sources in Yunnan, it turns out that TiO in titanium concentrate 2 What the determination of content adopts is the enterprise standard of domestic titanium industry company (sodium peroxide Na 2 o 2 melting method). However, in actual operation, it is found that the temperature is not easy to control when melting the sample, and it is very easy to splash. And since sodium peroxide Na 2 o 2 The strong alkaline and strong oxidizing corundum crucible is easily corroded, and it is very easy to break when it is used for the second or third time, and the sample leaks out, resulting in the failure of the experiment. In actual producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 邹捷杨小毅张健徐福昌郑立红
Owner 武定国钛金属有限公司
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