Advertisement

Metallurgical Transactions

, Volume 3, Issue 10, pp 2579–2583 | Cite as

Dechlorination of ferric chloride with oxygen

  • A. W. Henderson
  • T. T. Campbell
  • F. E. Block
Process Metallurgy

Abstract

Because of increasing ecological concern, the Bureau of Mines is investigating the use of chlorination technology in extractive metallurgy. A key problem is the fact that ferric chloride is commonly generated during processing of a wide variety of ores and minerals. This paper describes small laboratory-scale studies designed to effect dechlorination of ferric chloride by oxygen in a fluidized bed reactor to produce a viable, nonpolluting iron oxide product and chlorine gas, which could be recycled in a chlorination process. These studies demonstrated that close to 100 pct conversions of ferric chloride to ferric oxide and chlorine can be effected by reaction with oxygen at temperatures ranging from 500° to 650°C. The off-gas from the single-stage reactor contained up to 95 pct chlorine. The study also demonstrated that the presence of a small amount of NaCl in the reactor catalyzed the reaction between ferric chloride and oxygen and permitted high conversions at temperatures as low as 500°C.

Keywords

Feed Rate Ilmenite Ferric Chloride Oxygen Flow Rate Titanium Tetrachloride 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. J. Henn and J. A. Barclay:U.S. Bur. Mines Inf. Circ, 8450, 1970.Google Scholar
  2. 2.
    W. E. Dunn, Jr.,et al: U. S. Patent 3,376,112, 1965.Google Scholar
  3. 3.
    E. W. Nelson, etal: U. S. Patent 3,092,456, 1959.Google Scholar
  4. 4.
    R. H. Sawyer: U. S. Patent 2,642,339, 1948.Google Scholar
  5. 5.
    W. H. Hughes and K. Arkless: British Patent 992,317, 1965.Google Scholar
  6. 6.
    Z. I. Latin and A. A. Furman:Zh. Prikl. Khim., 1970, vol. 43, no. 4, pp. 830–34.Google Scholar
  7. 7.
    C. E. Wicks and F. E. Block:U. S. Bur. Mines Bull. 605, 1963.Google Scholar
  8. 8.
    H. F. Johnstone, H. C. Weinganther, and W. E. Winsche:J. Amer. Chem. Soc., 1942, vol. 64, pp. 241–44.CrossRefGoogle Scholar

Copyright information

© The Metallurgical of Society of AIME 1972

Authors and Affiliations

  • A. W. Henderson
    • 1
  • T. T. Campbell
    • 1
  • F. E. Block
    • 2
  1. 1.Albany Metallurgy Research Center, Bureau of MinesU. S. Department of the InteriorAlbany
  2. 2.U. S. Department of InteriorReno Metallurgy Research Center, Bureau of MinesReno

Personalised recommendations