Method for quickly measuring content of phosphorus, lead and zinc in industrial ferrous dust

A technology for rapid determination of zinc content, applied in the field of chemical analysis, can solve the problems of cumbersome sample decomposition operation, unfavorable environmental protection and occupational health, and inability to meet the accuracy requirements of smelting analysis.

Active Publication Date: 2012-07-11
ANGANG STEEL CO LTD
View PDF2 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the determination of lead and zinc in slag and ore generally adopts flame atomic absorption spectrometry, and the determination of phosphorus adopts extraction and separation spectrophotometry, phosphorus molybdenum heteropoly acid photometry, etc. These methods can only measure one element method sample at a time The decomposition operation is cumbersome and the inspection cycle is long. It takes at least three days for analysts to complete the analysis of P, Pb, and Zn in a sample of iron-containing dust and mud. The linear range of the test is narrow, and the above wet chemical analysis process uses a large amount of organic reagents and other chemical reagents, which are not c

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 quickly measuring content of phosphorus, lead and zinc in industrial ferrous dust
  • Method for quickly measuring content of phosphorus, lead and zinc in industrial ferrous dust
  • Method for quickly measuring content of phosphorus, lead and zinc in industrial ferrous dust

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] The present invention further illustrates the content of the invention through examples, but is not limited by the examples.

[0028] Equipment used: IRIS Advantage ER / S full-spectrum direct-reading plasma emission spectrometer (TJA company in the United States); AURULAR-600 pressure automatic control closed microwave sample dissolution system, power 1200W;

[0029] Reagents used: high-purity water; chemical reagents are pure superior grade. Hydrochloric acid, nitric acid (ρ1.42g / mL), perchloric acid (ρ1.67g / mL), hydrofluoric acid.

[0030] Phosphorus, lead, zinc standard stock solution: use the National Standards Center to develop a national standard reagent, 1mg / mL.

[0031] Determination of the content of phosphorus, lead and zinc in gas ash, blast furnace ash, dust removal ash and converter mud:

[0032] Each sample was dried and cooled at 105°C, weighed 0.100g (accurate to 0.1mg) in a magnetic dish covered with a layer of quantitative filter paper. As for the high-temperatu...

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 quickly measuring the content of phosphorus, lead and zinc in industrial ferrous dust. The method comprises the steps of sample decomposition, setting the instrument analysis parameters of an ICP (Inductively Coupled Plasma) spectrometer, interference correction, making a working curve, and analyzing the content of to-be-measured elements in a measured sample by using an ICP spectral method, wherein the sample decomposition comprises sample pre-decarburizing treatment and sample pressure-microwave digestion. The invention provides a new method for improving the speed and the accuracy in a chemical test of hazardous elements in metallurgical dust.

Description

technical field [0001] The invention belongs to the field of chemical analysis, in particular to a method for quickly measuring the content of harmful elements phosphorus, lead and zinc in iron-containing dust and sludge in the iron and steel industry by using an ICP-AES method. Background technique [0002] Iron and steel enterprises will inevitably produce some iron-containing waste in the production process, such as blast furnace dust, converter dust, sintering dust, blast furnace gas ash, etc., and efficiently recycle the effective elements in iron and steel metallurgical dust to realize all The recycling of iron-containing dust and mud resources is undoubtedly an important part of the development of circular economy in the iron and steel industry. In recycling, metallurgical waste such as iron-containing dust and sludge can be made into iron-containing sludge pellets to replace part of the sintering and pelletizing raw materials for ironmaking, but the phosphorus and le...

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): G01N21/31G01N1/44G01N1/34
Inventor 于媛君杨丽荣王铁顾继红亢德华邓军华
Owner ANGANG STEEL CO LTD
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