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Silver Recovery from Dilute Aqueous Solutions Using Semi‐Batch RF‐Pertraction
Author(s) -
Dimitrov K.,
Boyadzhiev L.,
Saboni A.,
Alexandrova S.
Publication year - 2002
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(200206)25:6<663::aid-ceat663>3.0.co;2-h
Subject(s) - chemistry , stripping (fiber) , aqueous solution , hydrometallurgy , ammonia , copper , membrane , kerosene , inorganic chemistry , chromatography , biochemistry , organic chemistry , electrical engineering , engineering
Silver recovery from dilute nitrate solution was studied by using a rotating film‐pertraction technique in a semi‐continuous mode. Tri‐isobutylphosphine sulphide (TIBPS) dissolved in kerosene was used as a carrier and an aqueous ammonia solution as a stripping phase. A high transfer flux of silver ions during the pertraction process was observed. It was shown that the selectivity of silver transport through the TIBPS‐containing liquid membrane provides an excellent separation of silver from other metals such as copper, nickel, and iron presented in the treated solutions.