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Method for determining contents of potassium, sodium, lead, zinc and copper elements in iron ore, slag, blast furnace fly ash and iron-containing tail mud

A blast furnace dust removal technology, element content technology, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve the problem that the content of sodium and copper elements cannot be measured at the same time, and achieve wide measurement range, simple and fast operation, good accuracy and precision degree of effect

Pending Publication Date: 2022-04-15
BAOTOU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention patent "Method for Determination of Potassium, Lead and Zinc in Iron Ore, Slag, and Iron-Containing Dust Sludge" is an inductively coupled plasma emission spectrometry method, which uses sodium carbonate-sodium tetraborate to melt and decompose samples, so the content of sodium and copper elements cannot be simultaneously determined

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  • Method for determining contents of potassium, sodium, lead, zinc and copper elements in iron ore, slag, blast furnace fly ash and iron-containing tail mud
  • Method for determining contents of potassium, sodium, lead, zinc and copper elements in iron ore, slag, blast furnace fly ash and iron-containing tail mud
  • Method for determining contents of potassium, sodium, lead, zinc and copper elements in iron ore, slag, blast furnace fly ash and iron-containing tail mud

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Embodiment Construction

[0018] A method for determining the contents of potassium, sodium, lead, zinc, and copper elements in iron ore, slag, blast furnace dust, and iron-containing tailings, the specific introduction is as follows:

[0019] 1 method summary

[0020] Hydrochloric acid is added to the sample, hydrofluoric acid is decomposed in a polytetrafluoroethylene beaker, perchloric acid smokes, nitric acid dissolves salts, and the content of potassium, sodium, lead, zinc, and copper is determined by ICP-AES method.

[0021] 2 Main instruments and working parameters

[0022] 2.1 OPTIMA5300DV Inductively Coupled Plasma Spectrometer (manufactured by American PE Company). Instrument working parameters: see Table 1.

[0023] Table 1 Working parameters

[0024]

[0025] 3 Reagents and standard solutions

[0026] Unless otherwise specified, only superior-grade reagents and pure water that meets the requirements of GB / T6682 or its purity level are used in the analysis.

[0027] 3.1 Hydrochloric ...

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Abstract

The invention discloses a method for measuring the content of potassium, sodium, lead, zinc and copper elements in iron ore, slag, blast furnace dust and iron-containing tail mud, elements with higher content can be directly measured without diluting a test solution, the detection time and the vigor of personnel can be greatly saved, more work can be done, the detection efficiency is improved, the electricity and gas costs are saved, and the method is suitable for large-scale popularization and application. The detection cost is reduced, and meanwhile, the blank of no method for determining the elements in the blast furnace fly ash and the iron-containing tail mud is filled up.

Description

technical field [0001] The invention relates to the technical field of metallurgical chemical analysis, in particular to a method for determining the contents of potassium, sodium, lead, zinc and copper elements in iron ore, slag, blast furnace dust and iron-containing tailings. Background technique [0002] At present, our method for determining the content of potassium, sodium, lead, zinc, and copper in iron ore and slag is the enterprise standard Q / BGJH-04-214-2008 atomic absorption spectrophotometry, and the measurement range: Na2O: 0.010%~ 5.00%; K2O: 0.010% to 10.00%; Pb: 0.010% to 1.00%; Zn: 0.001% to 1.00%; Cu: 0.001% to 1.00%. There are no standard analytical methods for the determination of potassium, sodium, lead, zinc, and copper in blast furnace dust and iron-bearing tailings. The content of potassium, sodium, lead and zinc in blast furnace dust and iron-containing tailings is relatively high, and the linear range of the enterprise standard atomic absorption sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
Inventor 薛玉兰刘钢耀战丽君
Owner BAOTOU IRON & STEEL GRP