APG 0.00% 0.2¢ austpac resources nl

value of zinc process, page-38

  1. 853 Posts.
    Hmm Lekki I think you outdid any techno talk I have done in the past by pasting that last article. For those who can perservere through the technical talk this Patent applic shows a porcess a bit closer to John Winter's fluid bed forte and avoid the organic extraction. The APG process would be in their EARS process rather than directly on the dust.

    Process for recovering iron and zinc from steel making dusts Document Type and Number:United States Patent 4396423 Link to this page:http://www.freepatentsonline.com/4396423.html Abstract:The object of the invention is to provide a process for the recovery of iron and zinc from steel making flue dust. The process comprises subjecting the flue dust to a carbiding step in a fluid bed in the presence of a reducing agent and a carbon supplying agent to break down the zinc ferrite structure and convert the iron to iron carbide, followed by heating the residue or product of the carbiding step to recover zinc by evaporization. The iron carbide produced may be introduced into a steel making furnace for the production of steel. An alternative procedure is the recovery of iron carbide and zinc by magnetic separation from the gangue after the carbiding step and before separation of zinc from iron carbide.
 
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