ISSN 0005-2531 (Print) ISSN 2522-1841 (Online)
EXTRACTION OF PALLADIUM
S.R.Mammadova, Z.A.Jabbarova

It is  known that a series of  organic  compounds  containing in molecule SH-, NH- qroups, including halogens, carboxylic acids and their derivatives, have the  ability  to form  the  innercomplex compounds under certain conditions. These compounds permit  to carry  out  the extraction in acidic medium,  that prevents  the of  process hydrolysis. They are not dissolved in water but are soluble in various solvents and form colored solutions and so may be used as an extractants. The main purpose of this paper is the study of palladium extraction ability for chlorinated naphthenic acids (CNA) synthesited in laboratory on the basis of industrial alkylphenols. Ammoniumacetate with various pH was  used as a buffer to extract palladium  from  PdCl2·2H2O  0.1 mkg/ml solution. The main task for the  use of inert organic compound in extraction is the selection of reagent which dissolves it but does not form any compound. With this aim the influence of different solvents on their reagent was researched. The experiments show that chloronaphthenic acid is dissolved well in organic solvents. Its  solution, for example in kerosene, is light-resistant, does not hydrolyze in water, alkalis and acids. So, chloronaphthenic recomendefor palladium extraction

doi.org/10.32737/0005-2531-2021-3-67-71 

Keywords : extraction, palladium, chloronaphthenic acid, diluent
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№1 2022
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