Recycling titanium and other reactive metal scraps by utilizing chloride wastes

Toru H. Okabe, Ryosuke Matsuoka, Osamu Takeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A new recycling process for titanium and other reactive metal scraps, utilizing the chloride wastes generated from the Kroll process was investigated. Iron chlorides (e.g., FeCl2, FeCl3) and metallic titanium (Ti) were allowed to react at temperatures between 700 and 1300 K, and chlorine in the iron chlorides was extracted as TiCl4 gas. It was found that iron chloride wastes can be utilized as a chlorine source for TiCl4 production, and this process can also be applied to titanium scrap treatment. The investigation of the recycling process of chloride wastes may be useful because it has the potential for improving the chlorine cycle in the Kroll process. The technique for chlorine recovery from chloride wastes is important especially when treating low-grade titanium ore, which will become an essential resource for the titanium industry in the future. This recycling process which utilizes chloride scrap can also be extended to other reactive metals such as rare earth metals and tantalum.

Original languageEnglish
Title of host publicationREWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology - Proceedings
EditorsI. Gaballah, B. Mishra, R. Solozabal, M. Tanaka
Pages893-902
Number of pages10
Publication statusPublished - 2005 Dec 1
Externally publishedYes
EventREWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology - Madrid, Spain
Duration: 2004 Sep 262004 Sep 29

Other

OtherREWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology
CountrySpain
CityMadrid
Period04/9/2604/9/29

Keywords

  • Chlorides
  • Chlorination
  • Iron chloride
  • Recycling
  • Titanium
  • Waste Minimization

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Recycling titanium and other reactive metal scraps by utilizing chloride wastes'. Together they form a unique fingerprint.

Cite this