Removal of copper from carbon-saturated steel with an aluminum sulfide/iron sulfide slag

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Description

Scrap iron and steel has long been considered a resource in the steel-making industry, and its value is largely determined by its impurity content. As the mini-mills, the major consumers of scrap iron and steel, expand into producing flat-rolled sheet, the demand for high-quality scrap will increase. Of the impurities present in scrap, copper is particularly troublesome because of its role in causing hot shortness. Therefore, the copper content of scrap should be kept below {approx} 0.1 wt%. A method for removing copper from steel could be used to improve the quality of scrap and make it more available for ... continued below

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21 p.

Creation Information

Cohen, A. & Blander, M. December 1, 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 25 times , with 11 in the last month . More information about this report can be viewed below.

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Description

Scrap iron and steel has long been considered a resource in the steel-making industry, and its value is largely determined by its impurity content. As the mini-mills, the major consumers of scrap iron and steel, expand into producing flat-rolled sheet, the demand for high-quality scrap will increase. Of the impurities present in scrap, copper is particularly troublesome because of its role in causing hot shortness. Therefore, the copper content of scrap should be kept below {approx} 0.1 wt%. A method for removing copper from steel could be used to improve the quality of scrap and make it more available for use by mini-mills. To determine the effectiveness of a binary slag consisting of aluminum sulfide and iron sulfide on the removal of copper from steel and iron, the distribution coefficient of copper between the slag and a carbon-saturated iron melt was investigated at 1,365 C. The composition of the slag was varied from nearly pure aluminum sulfide to pure iron sulfide. A maximum distribution coefficient of 30 was found, and the copper level in the iron melt was reduced to as low as 0.07 wt.% with a 4:1 ratio of iron to slag.

Physical Description

21 p.

Notes

OSTI as DE97008118

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  • Other Information: PBD: Dec 1995

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  • Other: DE97008118
  • Report No.: ANL/ET/PP--88729
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/510297 | External Link
  • Office of Scientific & Technical Information Report Number: 510297
  • Archival Resource Key: ark:/67531/metadc690561

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Creation Date

  • December 1, 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 16, 2015, 5:17 p.m.

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Cohen, A. & Blander, M. Removal of copper from carbon-saturated steel with an aluminum sulfide/iron sulfide slag, report, December 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc690561/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.