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Method for measuring titanium content of iron ore

A determination method and technology of iron ore, which are applied in the measurement of color/spectral properties, material analysis by observing the effect on chemical indicators, and analysis by chemical reaction of materials, etc., to achieve the effect of improving work efficiency

Inactive Publication Date: 2016-06-01
FUSHUN HANKING DRI CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for measuring titanium content in iron ore, which is an improved diantipyridine methane spectrophotometric method aimed at the rapid requirement of test data for continuous production of blast furnace ingredients. Sodium oxide alkali fusion sample, acidified with hydrochloric acid, meets the needs of rapid analysis work, and solves the problem of rapid detection of titanium content in iron ore

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  • Method for measuring titanium content of iron ore
  • Method for measuring titanium content of iron ore
  • Method for measuring titanium content of iron ore

Examples

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Embodiment 1

[0028] 1. Reagents and instruments:

[0029] (1) concentrated hydrochloric acid (ρ=1.19g / mL);

[0030] (2) Hydrochloric acid (concentrated hydrochloric acid and water are mixed and prepared at a volume ratio of 1:1);

[0031] (3) Sodium peroxide, solid;

[0032] (4) Ascorbic acid (50g / L), ready-to-use and ready-to-use;

[0033] (5) Diantipyridine methane solution (30g / L): Weigh 30g of diantipyridine methane, dissolve with hydrochloric acid (2mol / L), and dilute to 1000ml, filter and store in a brown bottle.

[0034] (6) Electronic balance with a maximum load of 220g and a sensitivity of 0.1mg;

[0035] (7) Model 721 spectrophotometer;

[0036] (8) Muffle furnace;

[0037] (9) Iron crucible;

[0038] (10) Iron ore standard samples.

[0039] 2. Samples to be tested

[0040] The particle size of the sample to be tested is required to be less than 150 mesh;

[0041] 3. Test process

[0042] 3.1 Preparation of mother liquor

[0043] Weigh 0.2000g of the sample to be teste...

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Abstract

The invention discloses a method for measuring titanium content of iron ore, and belongs to the technical field of measurement of the titanium content of the iron ore. The method comprises the following steps: firstly, melting and decomposing an iron ore sample to be measured by using sodium peroxide flux, and acidifying the sample by adding concentrated hydrochloric acid; then, adding diantipyryl methane solution into the acidified sample to serve as a color development reagent, wherein the color development reagent and titanium generate a yellow complex; finally, testing absorbance at the wavelength of 385 nm and further obtaining the titanium content of the iron ore sample, wherein the measurement range of the method is 0.006 percent to 0.300 percent. According to the method, the sample is decomposed by using sodium peroxide instead of five reagents, namely, hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid and potassium pyrosulfate; the test cost is reduced by replacing a platinum crucible with an iron crucible; the analysis period is 40 minutes; the work efficiency is improved. The method is suitable for analyzing the titanium content of fine iron powder, iron sintering ore and acid pellets.

Description

technical field [0001] The invention relates to the technical field of determination of titanium content in iron ore, in particular to a method for determination of titanium content in iron ore. 0.006% to 0.300%. Background technique [0002] High-quality high-purity pig iron has the characteristics of low phosphorus, low titanium, and low sulfur. The titanium content in pig iron is directly related to the titanium content in raw iron ore. Therefore, controlling the titanium content in iron ore has become a key to blast furnace smelting To select iron ore suppliers with low titanium content, it is imperative to establish an assay method for titanium content in iron ore. In the national standard, five reagents including hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, and potassium pyrosulfate are used to decompose samples. In the operating procedures, platinum crucibles are used for ashing, which takes a long time to decompose samples and poses safety hazar...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01N21/33
CPCG01N21/78G01N21/33
Inventor 赵明何晓旭
Owner FUSHUN HANKING DRI CO LTD
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