Method for testing niobium content in niobium-iron alloy

A technology of ferroniobium alloy and content, applied in the preparation of test samples, thermal excitation analysis, material excitation analysis, etc., can solve the problems of cumbersome operation steps, not enough environmental protection, inaccurate calculation, etc., and achieve the effect of simple operation

Inactive Publication Date: 2013-05-22
INNER MONGOLIA BAOTOU STEEL UNION
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these methods are: only the content of all titanium and tantalum in ferroniobium alloy can be determined, and when measuring the niobium content in ferroniobium alloy, the titanium and tantalum in the obtained niobium pentoxide precipitation are only a part of ferroniobium alloy, so using The results measured by the above method cannot represent the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for testing niobium content in niobium-iron alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Determination method of niobium content in ferroniobium alloy: After dissolving ferroniobium alloy, first add precipitant to precipitate niobium in ferroniobium alloy as niobium pentoxide, but at the same time, a part of titanium and tantalum will co-precipitate in niobium pentoxide precipitation , so as long as the content of titanium and tantalum in the precipitation of niobium pentoxide is accurately measured, the content of niobium in ferroniobium alloy can be calculated.

[0021] The general idea of ​​measuring the content of titanium and tantalum in niobium pentoxide precipitation is as follows: melt the niobium pentoxide precipitation sample in a muffle furnace with potassium pyrosulfate, extract it with tartaric acid, set the volume to a certain volume, and introduce the atomized solution into the inductor Coupled with a plasma atomic emission spectrometer, the spectral line intensity of the element to be measured is measured; according to the spectral line inten...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for testing niobium content in a niobium-iron alloy. The method comprises the steps of dissolving a niobium-iron alloy sample, depositing the niobium in the niobium-iron alloy in a niobium pentaoxide sediment mode, and weighing the mass of the niobium pentaoxide; preparing a niobium pentaoxide sediment solution, and preparing a standard solution, wherein the standard solution comprises a titanium standard solution and a tantalum standard solution; introducing the solution into which the niobium pentaoxide sediment is dissolved into an inductively coupled plasma atom emission spectrometer so as to test the spectral line intensity of the titanium and the tantalum, and obtaining the content of the titanium and the tantalum in the niobium pentaoxide sediment according to the spectral line intensity which is tested from the standard solution with known concentration; and subtracting the content of the titanium and the tantalum from the content of the niobium pentaoxide so as to obtain the content of the niobium in the niobium-iron alloy. By utilizing the technical scheme of the invention, the content of the titanium and the tantalum which are deposited together with the niobium in the niobium-iron alloy can be rapidly and accurately tested, thereby accomplishing the precise calculation on the niobium in the niobium-iron alloy.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgical analysis, in particular to a method for measuring niobium content in ferroniobium alloys. Background technique [0002] Ferro-niobium alloy is mainly added to the steelmaking process as an alloying raw material in iron and steel smelting, and it is expensive. Therefore, accurate analysis of niobium content is of great significance for raw material settlement, addition amount and cost control. [0003] At present, the analysis methods of niobium, titanium and tantalum in ferroniobium alloys are: GB / T3654.8-1983 Ferroniobium chemical analysis method-chromotropic acid photometric method for determination of titanium content; GB / T3654.1-1983 Ferroniobium chemical analysis method: on paper Chromatographic gravimetric determination of niobium and tantalum content and CSM 04 10 73 01-2001 Determination of ferroniobium-tantalum content-crystal violet benzene extraction photometry. Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/71G01N1/44
Inventor 刘钢耀赵布和刘建华王宴秋乔宇战丽君戴文杰周欣田甜
Owner INNER MONGOLIA BAOTOU STEEL UNION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap