Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Recovery of Chemicals from Waste Iron Sulfate: A Laboratory Test of the Production of Iron Chloride and/or Electrolytic Iron.
Author Blanchard, J. M. ; Murat, M. ;
CORP Author Institut National des Sciences Appliquees de Lyon, Villeurbanne (France).;Environmental Protection Agency, Washington, DC.
Publisher c1981
Year Published 1981
Stock Number PB95-251229
Additional Subjects Waste recovery ; Iron sulfates ; Recycling ; Electrolytic iron ; Iron chloride ; Titanium dioxide ;
Library Call Number Additional Info Location Last
NTIS  PB95-251229 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/25/1995
Collation 7p
Waste iron sulfate is produced in titanium dioxide manufacture and in steel pickling with sulfuric acid. Many processes have been proposed to use this waste as a source of chemicals or raw materials. The process developed here is based on the reaction with pure or waste calcium chloride (Solvay brine) to obtain iron(II) chloride and gypsum as a by-product. The iron chloride solution can either be directly oxidized to iron(III) chloride by reaction with chlorine or electrolyzed to produce electrolytic iron and gaseous chlorine. The more interesting procedure is to electrolyze one-third of the iron(II) in solution and to oxidize the remainder with the chlorine obtained from the electrolysis.