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8255850 
Journal Article 
Extraction of Ca (II) and mg (II) from hydrochloric acid solutions by N, N-dioctyl-1-octan ammonium chloride in methyl isobutyl ketone 
Faiku, F; Haziri, A; Haziri, I; Aliu, S; Sopa, N 
2012 
Yes 
American Journal of Applied Sciences
ISSN: 1546-9239
EISSN: 1554-3641 
9 
7 
1145-1149 
English 
Problem statement: Amines as organic molecules are able to form complexes with metals ions and this is the reason why we can use them to extract metals ions from hydrometallurgical solutions. Approach: Based on that, we have investigated the extraction of Calcium and Magnesium with N, N-dioctyl-1-octan ammonium chloride from the mixture of elements (Ca and Mg) prepared in artificial manner. We have investigated the influence of HCl concentration and salts (NaCl, NaI and CH3COONa) concentration in extraction of two elements (Ca and Mg) from water solutions. All extractions were done from HCl water solutions with c = 3, 6 and 9 mol L-1 and in presence of NaCl, NaI and CH3COONa salts, which we prepared in different concentrations. Results: Extraction of Calcium from NaCl solution move from 18-30%, from NaI solution 55-77% and from CH3COONa solution 50-71%. Extraction of Magnesium from NaCl solution move from 3-12%, from NaI solution 0-11% and from CH3COONa solution 0-8%. Conclusion: As optimal condition to separate Calcium from Magnesium is the extraction of Calcium from HCl solution with concentration 9 mol L-1 in presence of NaI with concentration of 60 g L-1. Using these condition 77% of Calcium was in organic phase and all of magnesium remains in water phase. © 2012 Science Publications. 
Ammonium chloride; Artificial manner; Changing factors; Elements prepared; Large molecular masse; Magnesium remains; Organic phase