Amine Extraction of Iron from Aluminum Chloride Leach Liquors.
Eisele-JA; Schultze-LE; Berinati-DJ; Bauer-DJ
NTIS: PB 261 417 :10 pages
The federal Bureau of Mines is engaged in a continuous program on the recovery of alumina from domestic source materials. Of the six processes being studied, current efforts focus on hcl leach of clays. A key step in the hcl process is the removal of iron from the aluminum chloride leach liquor. This was accomplished by solvent extracting the iron with a Tertiary amine in kerosine to which decanol was added as a phase modifier. In a mixer-settler operation, iron in the raffinate was reduced to <10 ppm in two extraction stages from a feed containing 1.4 G/l fe. Iron was stripped from the organic phase in three stages with dilute hcl.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 261 417