Determination of silver, antimony, bismuth, copper, cadmium and indium in ores, concentrates and related materials by atomic-absorption spectrophotometry after methyl isobutyl ketone extraction as iodides

Donaldson, Elsie M.; Wang, Mohui

doi:10.1016/0039-9140(86)80057-1

Cited by 27 publications

(6 citation statements)

References 18 publications

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“…Therefore, functionalized calixarenes are most promising candidates as highly selective and efficient solvent extraction reagents towards the target species. In our earlier reports, the solvent extraction behavior of calix [4]-, [5]-and [6]arene derivatives containing carboxylic acid groups was described [23,24]. These ligands selectively and very effectively extracted the trivalent metal cations Fe(III), In (III) and Ga(III) over the divalent cation Zn(II) as a function of pH.…”

Section: Introductionmentioning

confidence: 95%

“…(6) is obtained as, The extraction equilibrium constants (K ex ) for Ga(III) and In(III) were estimated from the equation for the straight lines in Figure 2 and using the relationship given by eq. (6). The values are summarized in and In(III).…”

Section: Extraction Reactions Extraction Equilibrium Constants and Smentioning

confidence: 99%

“…In our preliminary investigations, a very simple screening of extraction percentages of hydroxamic acid ligands towards a series of cations between pH 2.5 and 4.5 was conducted. The hydroxamate derivatives of calix [4]-and [6]arenes were more effective for the extraction of some trivalent cations over divalent cations. However, the extraction stoichiometry and metal selectivity for the hydroxamate derivative of calix [4] arene with high Ga(III) selectivity were not investigated in detail [28].…”

Section: Introductionmentioning

confidence: 99%

“…Methyl isobutyl ketone (MIBK) [6], carboxylic acids [7,8], amines [9][10][11], quinolines [12] and β-diketones [13] have also been applied for this goal. In addition to these compounds, hydroxamic acids [14] are a class of versatile extractants which have significant importance as analytical tools for the separation and quantitative determination of a large number of metal ions [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Selective Extraction of Ga(III) with <i>p-t</i>-Butylcalix[4]arene Tetrahydroxamic Acid

Chetry

Adhikari

Morisada

et al. 2015

SERDJ

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Solvent extraction behavior of p-tert-butylcalix [4]arene tetrahydroxamic acid towards some trivalent as well as divalent cations was studied. The extraction selectivity of some cations followed the order Ga(III) > In(III) > Fe(III) > Cu(II) >> Zn(II), Ni(II). Since the extraction reagent exhibited high selectivity for Ga (III) and In(III), the detailed extraction behavior for Ga(III) and In(III) was investigated by slope analysis, the continuous variation method, and by loading tests. It was confirmed that both metals formed 1:1 complexes with the extraction reagent. Since the pK a values for hydroxamic acids are 8-9, there was 6-7 units of pH shift in the metal extraction caused by the complexation of Ga(III) indicating that this ligand served as an excellent reagent for selective extraction of Ga(III). The coordination site of the ligand for both metals was qualitatively investigated by IR spectra before and after metal loading on the ligand. The loaded Ga(III) was quantitatively stripped by using dilute acidic solutions and the ligand was regenerated.

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Section: Introductionmentioning

confidence: 95%

Section: Extraction Reactions Extraction Equilibrium Constants and Smentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Selective Extraction of Ga(III) with <i>p-t</i>-Butylcalix[4]arene Tetrahydroxamic Acid

Chetry

Adhikari

Morisada

et al. 2015

SERDJ

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“…During the industrial metallurgical process of these ores, leaching stages with H 2 SO 4 , HCl and HNO 3 are involved, and highly acidic solutions with base metals and bismuth are obtained [5,6].…”

Section: Introductionmentioning

confidence: 99%

Aminododecyldiphosphonic Acid for Solvent Extraction of Bismuth Ions

Medjahed¹,

Kaid²,

Didi³

et al. 2012

IJNM

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The extraction of Bi(III) in nitrate media has been investigated using aminododecyldimethylenediphosphonic acid, ADDMDPA, which was previously synthesized and characterized. The extraction of the cation was carried out in different media with the addition of CH 3 COONa, KNO 3 and HNO 3 . The maximum extraction yield for Bismuth is 70% after addition of 0.01 M of potassium nitrate at pHi = 2.9, in one step.

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Methoden zur Analyse von Schwermetallen in Böden

Ure¹

1999

Schwermetalle in Böden

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Determination of silver, antimony, bismuth, copper, cadmium and indium in ores, concentrates and related materials by atomic-absorption spectrophotometry after methyl isobutyl ketone extraction as iodides

Cited by 27 publications

References 18 publications

Selective Extraction of Ga(III) with <i>p-t</i>-Butylcalix[4]arene Tetrahydroxamic Acid

Selective Extraction of Ga(III) with <i>p-t</i>-Butylcalix[4]arene Tetrahydroxamic Acid

Aminododecyldiphosphonic Acid for Solvent Extraction of Bismuth Ions

Methoden zur Analyse von Schwermetallen in Böden

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