Ion flotation and solvent extraction of ferric thiocyanate complexes

Journal Article · Tue Dec 01 00:00:00 EST 1987 · Sep. Sci. Technol.; (United States)

DOI:https://doi.org/10.1080/01496398708057193· OSTI ID:7247798

Jurkiewicz, K

The influence of thiocyanate and accompanying mineral acids concentration on the effectiveness of Fe(III) ion flotation, Fe(III) precipitation in cetyltrimethylammonium ferric-thiocyanate form (as sublate), and Fe(III) extraction using ethyl acetate was studied. The effectiveness of these processes improves with the extent of Fe(III) complexation by thiocyanates. In the presence of acids, flotation and precipitation are increased as follows: HClO/sub 4/ < HCl < HNO/sub 3/ < H/sub 2/SO/sub 4/. The position of H/sub 3/PO/sub 4/ in this series changes with changing thiocyanate concentration. Extraction effectiveness is increased in the series: H/sub 3/PO/sub 4/ < H/sub 2/SO/sub 4/ < HNO/sub 3/, HClO/sub 4/, HCl. The following points are discussed: (a) the influence of acid anions competing with thiocyanate anions in Fe(III) complexation; (b) the influence of the competition between acid anions and complex ferric-thiocyanate anions in sublate formation; (c) the influence of hydrogen ion concentration increase in thiocyanate medium on the results of Fe(III) flotation, precipitation, and extraction; and (d) the influence of anion affinity for a collector on the solution surface properties and on Fe(III) flotation.

• Research Organization: M. Curie-Sklodowska Univ., Lublin (Poland)
• OSTI ID: 7247798
• Journal Information: Sep. Sci. Technol.; (United States), Vol. 22:12
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
ACETATES
SOLVENT PROPERTIES
IRON COMPLEXES
FLOTATION
SOLVENT EXTRACTION
THIOCYANATES
ANIONS
EXPERIMENTAL DATA
QUANTITY RATIO
ANTITHYROID DRUGS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHARGED PARTICLES
COMPLEXES
DATA
DRUGS
EXTRACTION
HORMONE ANTAGONISTS
INFORMATION
IONS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
SEPARATION PROCESSES
TRANSITION ELEMENT COMPLEXES
400105* - Separation Procedures
520200 - Environment
Aquatic- Chemicals Monitoring &amp; Transport- (-1989)