Abstract
Ruthenium, rhodium and platinum are the most expensive of noble metals. As their natural sources are limited, it is important to develop an effective process for recovering Rh, Ru and Pt from waste sources. Their main suppliers are the following industries: chemical (spent catalysts), automotive, jewellery, dental and petrochemical. This paper presents studies on the extraction of Rh(III), Ru(III) and Pt(IV) from model aqueous chloride solutions using trihexyl(tetradecyl)phosphonium bromide (Cyphos IL 102). The effects of different parameters such as the influence of shaking time, HCl and NaCl concentrations in the feed solutions and also Cyphos IL 102 concentration in the organic phase, on the extraction of these metal ions were investigated. Additionally, the effect of the ageing of Rh(III) and Ru(III) chloride solutions on the extraction of these metal ions was studied.
‡Presented at the 41st International Conference of the Slovak Society of Chemical Engineering, Tatranské Matliare, Slovakia, 26–30 May 2014.
Acknowledgements.
The authors wish to thank Eng. Ma lgorzata Janiszewska for her help in researching ruthenium(III). The research was supported by grant no. 03/32/DS-PB/0501.
References
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© Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- Original Paper
- Prevention of degradation of γ-irradiated EPDM using phenolic antioxidants
- Original Paper
- Differentiation of black, green, herbal and fruit bagged teas based on multi-element analysis using inductively-coupled plasma atomic emission spectrometry
- Original Paper
- Reaction mechanisms of carbon dioxide methanation
- Review
- Power consumption and gas–liquid dispersion in turbulently agitated vessels with vertical dual-array tubular coil baffles
- Short Communication
- Tannins analysis from different medicinal plants extracts using MALDI-TOF and MEKC
- Original Paper
- Trihexyl(tetradecyl)phosphonium bromide as extractant for Rh(III), Ru(III) and Pt(IV) from chloride solutions‡
- Original Paper
- Synthesis of Fe3O4–Ag nanocomposites and their application to enzymeless hydrogen peroxide detection
- Original Paper
- Possibilities for removal of chlorinated dye Mordant Blue 9 from model waste water‡
- Review
- Preparation and properties of gelatin films incorporated with N-hydroxysuccinimide-activated end-bit binary acid
- Original Paper
- Synthesis and properties of novel reusable nano-ordered KIT-5-N-sulfamic acid as a heterogeneous catalyst for solvent-free synthesis of 2,4,5-triaryl-1 H-imidazoles
- Short Communication
- Prediction of power consumption in mechanically agitated gassed reactor in viscous batch‡
- Original Paper
- Hydrogel supported chiral imidazolidinone for organocatalytic enantioselective reduction of olefins in water
- Original Paper
- Continuous synthesis of N-ethylethylenediamine over supported Cu–Zn–La catalysts
- Preface
- Enzyme-assisted extraction of citrus essential oil
- Preface
- Experimental investigations of liquid flow in pipe with flat internal baffles