THE SEPARATION OF INDIUM FROM ZINC AND ACCOMPANYING ELEMENTS BY EXTRACTION WITH ALKYLPHOSPHORIC ACIDS

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4840818

Levin, I S; Zabolotskii, T V

It was shown that a 20% 2-ethylhexylphosphoric acid solution in kerosene extracts indium completely from sulfuric, perchloric, nitric, hydrofluoric, oxalic and formic acid solutions over a wide interval of concentrations. Indium can be back-extracted with 6 to 9 N HCl. With an initial concentration of In of 4.2 g/l, a concentrate of 120 to 130 g/l of In in HCl can be obtained by using this process. Zn, Cd, Cu, Co, Ni and Fe/sup 2+/ have distribution coefficients of 10/sup -2/ to 10/sup -3/ on extracting In from 10 M H/sub 2/SO/sub 4/ i solution. Elements which form strong anion fluoride complexes are not extracted from HF solutions. In can be separated from Fe/sup 3+/, Al, Ga, U, Zr, Sc and Ti. Large amounts of Fe/sup 3+/ (>10 g/l) interfere with the extraction of In. (TTT)

• Research Organization: Chemical-Metallurgy Inst.; and Inst. of Inorganic Chemistry, Siberian Branch, Academy of Sciences, USSR
• NSA Number: NSA-15-029293
• OSTI ID: 4840818
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 139
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALKYL RADICALS
ALUMINUM
CADMIUM
CHEMISTRY
COBALT
COMPLEXES
COPPER
DISTRIBUTION
FLUORIDES
FORMIC ACID
GALLIUM
HYDROCARBONS
HYDROCHLORIC ACID
HYDROFLUORIC ACID
INDIUM
IRON
NICKEL
NITRIC ACID
OXALIC ACID
PERCHLORIC ACID
PHOSPHORIC ACID
SCANDIUM
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SULFURIC ACID
TITANIUM
URANIUM
ZINC
ZIRCONIUM