Recovery of silver from nitrate solution by means of rotating film pertraction

Facilitated transport of silver across a bulk liquid membrane was studied in a rotating film (RF) pertraction device. A 0.06 M solution of tri-isobutylphosphine sulfide (TIBPS) (Cyanex® 471x) in n-octane was used as a carrier and an aqueous ammonia solution as a stripping phase. The influence of the...

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Bibliographic Details
Published in:Journal of membrane science 1994-01, Vol.86 (1), p.137-143
Main Authors: Boyadzhiev, L., Dimitrov, K.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
liquid membranes
Liquid-liquid extraction
pertraction
silver extraction
tri-isobutylphosphine sulfide
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Summary:Facilitated transport of silver across a bulk liquid membrane was studied in a rotating film (RF) pertraction device. A 0.06 M solution of tri-isobutylphosphine sulfide (TIBPS) (Cyanex® 471x) in n-octane was used as a carrier and an aqueous ammonia solution as a stripping phase. The influence of the main process parameters such as temperature, disc rotation velocity and nitric acid concentration was investigated as well as the separation selectivity with respect to other metals such as Cu, Zn and Ni present in the feed solution. It was shown that the RF-pertraction using TIBPS as a carrier was a successful method for selective silver recovery from its dilute nitrate solutions.
ISSN:0376-7388
1873-3123
DOI:10.1016/0376-7388(93)E0135-7