Solvent extraction studies of chromium(III) with tri-n-octylamine

McClellan, B. E.; Meredith, M. K.; Parmelee, Ray.; Beck, Jean-Paul

doi:10.1021/ac60338a009

Cited by 15 publications

(4 citation statements)

References 5 publications

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“…Systems that we will discuss here, are some extracted species formed as result of interactions between a neutral species or anionic metallic species in water solution and salts of any organic bases or their cation in organic or in water phase. This kind of extraction is known as associated ionic extraction, where a cationic part is alkyl ammonium,-arsenium orphosphonium cation (McClellan et al, 1974). Faiku et al (2009) have investigated the extraction of Calcium and Magnesium with mixture of N,N-dioctyl-1-octanammine and N,N-dioctyl-1-octan ammonium chloride and only with N,N-dioctyl-1-octan ammonium chloride.…”

Section: Extraction Of Ca(ii) and Mg(ii) From Hydrochloric Acid Solutmentioning

confidence: 99%

“…They have found that all changing factors have influence in extraction percentage of calcium and magnesium in organic phase. Kimura (1960) has done the extraction of some metals including Calcium and Magnesium, from HCl solution with concentration 0.01 mol L −1 , 0.1 mol L −1 and 1 mol L −1 with di-(2-Ethylhexyl) phosphoric acid (50% in toluene). He found that Calcium was extracted 11% from solution of HCl with concentration 0.1 mol L −1 , while Magnesium was extracted 36% from HCl solution with concentration 0.01moL L −1 .…”

Section: Extraction Of Ca(ii) and Mg(ii) From Hydrochloric Acid Solutmentioning

confidence: 99%

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Extraction of Ca(II) and Mg(II) from Hydrochloric Acid Solutions by N,N-Dioctyl-1-Octanamine in Methyl Isobutyl Ketone

Faiku¹,

Haziri²,

Faiku³

2010

American Journal of Applied Sciences

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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-octammine from the mixture of elements prepared in artificial manner. We investigated the influence of HCl concentration and salts (NaCl, NaI and CH₃COONa) concentration in extraction of two elements (Calcium and Magnesium) 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 50-75%, from NaI solution 0-90% and from CH₃COONa solution 37-81%. Extraction of Magnesium from NaCl solution move from 0-10%. In solution of NaI we can not extract the Magnesium and from CH₃COONa solution the extraction of magnesium moves from 0-30%. 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 90% of Calcium was in organic phase and all of magnesium remains in water phase

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Section: Extraction Of Ca(ii) and Mg(ii) From Hydrochloric Acid Solutmentioning

confidence: 99%

Section: Extraction Of Ca(ii) and Mg(ii) From Hydrochloric Acid Solutmentioning

confidence: 99%

Extraction of Ca(II) and Mg(II) from Hydrochloric Acid Solutions by N,N-Dioctyl-1-Octanamine in Methyl Isobutyl Ketone

Faiku¹,

Haziri²,

Faiku³

2010

American Journal of Applied Sciences

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“…In a series of 100 cm3 separating funnels, aliquots of cobalt (11) solution (1)(2)(3)(4)(5)(6)(7) ppm), 2 cm3 of 1 M hydrochloric acid and 5 cm3 of 4 M Potassium Thiocyanate are placed and the total volume is made up to 15 om3. The mixture is extracted twice with 10 cm3 portions of 0.1M TOA in dichloroethane.…”

Section: Recommended Proceduresmentioning

confidence: 99%

Solvent Extraction Studies of Molybdenum (VI), Cobalt (II) and Copper (II) with Tri‐N‐Octylamine and Thiocyanate Ion

Salama

Aziz

Ashry

1988

Bulletin des Soc Chimique

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Bull. SOC. Chim. Belg. vo1.97/n0 7/1988 0037-9646/88/ 4 2 . 0 0 + 0.00 0 1988 C d t 6 van Beheer van h e t Bulletin V . Z . W . SOLVENT EXTRACTION STUDIES OF MOLYBDENUM (Vl), COBALT (11) AND COPPER (11) WITH TRI-N-OCTYLAMINE AND THIOCYANATE ION ABSTRACTThe extraction of the thloCyaMte complexes of mdybdenum (Vl), cobalt (11) and copper (11) with tri-n-octylamine, yielding orange-red, Mue and yellowish green complexes respectively has been investigated as a function of the acMlty of the aqueous phase and of the thiocyanate and amine concentrations. Under proper operating condltions extraction yields of 95% can be obtained. The mdybdenum complex has an absorption maximum at 470 nm wkh a molar absorpthrity of 2.6 x lo4 dm3moi-' cm-' in cyclohexane, whilethecobalt complexhasanabsorptlonmaximumat622nmwithamdarabsorptiv~of2.5~ 103dm3moV1 cm-l indichlorethane.The copper complex in chloroform has no maximum absorption.The separation of copper from mdybdenum has successfully been accomplished. INTRODUCTIONOver the last ten years, the analytical selectivity of the formation of ion association complexes for extracting and determining different metals such as chromium', cobal?, molybdenum5 and beryllium6 ions has been reported by different authors. In this paper, ion-association complexes formed between molybdenum, cobalt and copper ions each with tri-n-octylamine and thiocyanate ion were used for the extraction of those three metals and for the spectrophotometric determination of molybdenum and cobalt ions.

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“…This kind of extraction is known as associated ionic extraction, where a cationic part is alkyl ammonium, arsenium or phosphonium camion (McClellan et al, 1974).…”

Section: Introductionmentioning

confidence: 99%

Extraction of Ca (II) and Mg (II) from Hydrochloric Acid Solutions by N, N-Dioctyl-1-Octan Ammonium Chloride in Methyl Isobutyl Ketone

Faiku

Haziri

et al. 2012

American Journal of Applied Sciences

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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 CH 3 COONa) 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 CH 3 COONa 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 CH 3 COONa solution 50-71%. Extraction of Magnesium from NaCl solution move from 3-12%, from NaI solution 0-11% and from CH 3 COONa 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.

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Solvent extraction studies of chromium(III) with tri-n-octylamine

Cited by 15 publications

References 5 publications

Extraction of Ca(II) and Mg(II) from Hydrochloric Acid Solutions by N,N-Dioctyl-1-Octanamine in Methyl Isobutyl Ketone

Extraction of Ca(II) and Mg(II) from Hydrochloric Acid Solutions by N,N-Dioctyl-1-Octanamine in Methyl Isobutyl Ketone

Solvent Extraction Studies of Molybdenum (VI), Cobalt (II) and Copper (II) with Tri‐N‐Octylamine and Thiocyanate Ion

Extraction of Ca (II) and Mg (II) from Hydrochloric Acid Solutions by N, N-Dioctyl-1-Octan Ammonium Chloride in Methyl Isobutyl Ketone

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