A study of palladium recovery with thiourea from nitric acid solutions

Tikhomirova, V. I.; Desyatova, T. A.; Suvorova, V. A.

doi:10.1134/s1070427207100059

Cited by 6 publications

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“…Thiourea functional group containing N and S donor atoms or soft ligand atoms has been studied by many researchers to separate or adsorb a lot of soft metals or Pd(II) ions 6, 11–20. Thiourea‐formaldehyde (TUF) resin can be synthesized easily with less starting material in an aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8][9][10][11] Thiourea functional group containing N and S donor atoms or soft ligand atoms has been studied by many researchers to separate or adsorb a lot of soft metals or Pd(II) ions. 6,[11][12][13][14][15][16][17][18][19][20] Thiourea-formaldehyde (TUF) resin can be synthesized easily with less starting material in an aqueous solution. This resin has not been focused on only the separation of palladium ions from base metal ions although there is collective metal ion sorption study.…”

Section: Introductionmentioning

confidence: 99%

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Selective separation and concentration of Pd(II) from Fe(III), Co(II), Ni(II), and Cu(II) ions using thiourea‐formaldehyde resin

Muslu

Gülfen

2011

J of Applied Polymer Sci

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Thiourea-formaldehyde (TUF), a wellknown chelating resin, has been synthesized and it was used in the adsorption, selective separation, and concentration of Pd(II) ions from Fe(III), Co(II) Ni(II), and Cu(II) base metal ions. The composition of the synthesized resin was determined by elemental analysis. The effect of initial acidity/pH and the adsorption capacity for Pd(II) ions were studied by batch technique. The adsorption and separation of Pd(II) were then examined by column technique. FTIR spectra and SEM/EDS analysis were also recorded before and after the adsorption of Pd(II). The optimum pH was found to be 4 for the adsorption. The adsorption data fitted well to the Langmuir isotherm. The maximum adsorption capacity of the TUF resin for Pd(II) ions was found to be 31.85 mg g À1 (0.300 mmol g À1

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Section: Introductionmentioning

confidence: 99%