New Dissolved
Nitrogen Predispersed Solvent Extraction
Method, 1: Performance
- Publication date
- Publisher
Abstract
The
new Dissolved Nitrogen Predispersed Solvent Extraction (DNPDSE)
method was invented for promoting the operational power and improving
the equipment performance used in the conventional solvent extraction
(SX) method, especially for dilute solutions. The main difference
between this method and the SX method is in the mixing mode of aqueous
and organic phases. The mixing operation in the SX method is performed
with drop dispersion of one phase into another phase; however, in
the DNPDSE method, it is carried out with bubble dispersion of organic
phase into the aqueous phase. As a result, the performance of the
method is improved due to the increase in the contact area of the
two phases, thus enhancing in the buoyancy force of the organic phase.
The performance comparison of the two methods in similar conditions
showed that the copper recovery in the DNPDSE method compared with
the SX method in dilute (128 mg Cu/L) and dense (2000 mg Cu/L) synthetic
solutions was increased by 22% and 2.5% (on average), respectively