Ion flotation and solvent extraction of ferric thiocyanate complexes
Journal Article
·
· Sep. Sci. Technol.; (United States)
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), Journal Name: Sep. Sci. Technol.; (United States) Vol. 22:12; ISSN SSTED
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETATES
ANIONS
ANTITHYROID DRUGS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHARGED PARTICLES
COMPLEXES
DATA
DRUGS
EXPERIMENTAL DATA
EXTRACTION
FLOTATION
HORMONE ANTAGONISTS
INFORMATION
IONS
IRON COMPLEXES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTITY RATIO
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
THIOCYANATES
TRANSITION ELEMENT COMPLEXES
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACETATES
ANIONS
ANTITHYROID DRUGS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHARGED PARTICLES
COMPLEXES
DATA
DRUGS
EXPERIMENTAL DATA
EXTRACTION
FLOTATION
HORMONE ANTAGONISTS
INFORMATION
IONS
IRON COMPLEXES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTITY RATIO
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
THIOCYANATES
TRANSITION ELEMENT COMPLEXES