Method for rapidly determining content of titanium in ferrotitanium

A technology for rapid determination of titanium content, applied in chemical analysis by titration, etc., can solve problems such as unsuitable for rapid analysis, difficult to master operation, and complicated methods, and achieves meeting the needs of on-site production, using less reagents, and analyzing time. short effect

Inactive Publication Date: 2021-04-30
BAOTOU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the determination method of titanium content in ferrotitanium is mainly the ferric ammonium sulfate titration method adopted in the national standard GB / T4701.1-2009. , Sulfuric acid smokes, hydrochloric acid acidifies the sample, and at the same time needs to use sodium hydroxide precipitation solution to treat interfering elements. The situation that interferes with the determination results, so this national standard method is not suitable for the needs of rapid analysis of the process

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  • Method for rapidly determining content of titanium in ferrotitanium
  • Method for rapidly determining content of titanium in ferrotitanium
  • Method for rapidly determining content of titanium in ferrotitanium

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Embodiment 1

[0050] Embodiment 1: A kind of method of fast determination titanium content in ferro-titanium

[0051] Weigh 0.5000g of ferrotitanium standard sample (YSBC18604-08) into a 500mL Erlenmeyer flask, add (1+5) sulfuric acid 140mL, dissolve the sample at low temperature, add (1+1) hydrochloric acid 60mL, after the sample is dissolved, add Add about 0.5g of sodium bicarbonate to 1g of aluminum flake, immediately cover the mouth of the Erlenmeyer flask with a porcelain crucible lid, and heat to dissolve on a low-temperature electric furnace. After dissolving, boil for 5-6 minutes, remove and cool, remove the lid of the porcelain crucible, immediately add 20mL saturated ammonium sulfate solution, immediately titrate with ferric ammonium sulfate standard titration solution until the purple color disappears, add 50g / L ammonium thiocyanate Continue to titrate 5mL of the solution to red, and keep the red color for 2 minutes after fully shaking as the end point. The measurement result is...

Embodiment 2

[0053] Embodiment 2: a kind of method of fast determination titanium content in ferro-titanium

[0054] Weigh 0.5000g ferro-titanium standard sample (YSBC19605-04) into a 500mL Erlenmeyer flask, add (1+5) sulfuric acid 140mL, dissolve the sample at low temperature, add (1+1) hydrochloric acid 60mL, after the sample dissolves, add Add about 0.5g of sodium bicarbonate to 1g of aluminum flake, cover the porcelain crucible immediately, and heat to dissolve on a low-temperature electric furnace. After dissolving, boil for 5-6 minutes, remove and cool, remove the lid of the porcelain crucible, immediately add 20mL saturated ammonium sulfate solution, immediately titrate with ferric ammonium sulfate standard titration solution until the purple color disappears, add 50g / L ammonium thiocyanate Continue to titrate 5mL of the solution to red, and keep the red color for 2 minutes after fully shaking as the end point. The measurement result is 38.60%, the standard value is 38.81%, and the...

Embodiment 3

[0056] Embodiment 3: a kind of method of fast determination titanium content in ferro-titanium

[0057] Weigh 0.5000g ferro-titanium sample and place it in a 500mL Erlenmeyer flask, add (1+5) sulfuric acid 140mL, dissolve the sample at low temperature, add (1+1) hydrochloric acid 60mL, add 1g aluminum flakes after the sample is dissolved, add About 0.5g sodium bicarbonate, cover the porcelain crucible immediately, and dissolve it by heating on a low-temperature electric furnace. After dissolving, boil for 5-6 minutes, remove and cool, remove the lid of the porcelain crucible, immediately add 20mL saturated ammonium sulfate solution, immediately titrate with ferric ammonium sulfate standard titration solution until the purple color disappears, add 50g / L ammonium thiocyanate Continue to titrate 5mL of the solution to red, and keep the red color for 2 minutes after fully shaking as the end point. The measurement results of the two parallel samples were 22.50% and 22.46%, respect...

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Abstract

The invention discloses a method for rapidly determining the content of titanium in ferrotitanium, which comprises the following steps: adding dilute sulfuric acid, hydrochloric acid and a low-temperature decomposition sample into a conical flask containing the sample, reducing with metal aluminum under the condition of air isolation, adding a titration indicator, titrating with an ammonium ferric sulfate standard solution until the color is stable red, and calculating the content of titanium in the sample according to the consumption of the ammonium ferric sulfate standard titration solution. According to the method, analysis equipment is simple, operation is easy to master, the analysis efficiency is high, meanwhile, the accuracy of the detection result can be guaranteed, and the requirement for on-site fast-paced production can be met.

Description

technical field [0001] The invention belongs to the technical field of alloy analysis, and in particular relates to a method for quickly measuring titanium content in ferrotitanium. Background technique [0002] Ferro-titanium is generally used as a deoxidizer and degasser in the steelmaking process. The deoxidation ability of titanium is higher than that of silicon and manganese, and can reduce the composition segregation of steel ingots and improve the quality of steel ingots. At the same time, ferrotitanium can also be used as an alloying agent in the steelmaking process to enhance the strength, corrosion resistance and stability of steel; for casting process , can improve the wear resistance, stability and processability of cast iron. Therefore, the production process of the process needs to provide the content of titanium in ferro-titanium accurately and quickly. [0003] At present, the determination method of titanium content in ferrotitanium is mainly the ferric am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16
CPCG01N31/16
Inventor 周景涛战丽君梁艳芳成永杰
Owner BAOTOU IRON & STEEL GRP
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