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Search: authors:"Katarzyna Staszak"

6 papers found.
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Static sorption of heavy metal ions on ion exchanger in the presence of sodium dodecylbenzenesulfonate

The effect of sodium dodecylbenzenesulfonate (anionic surfactant) on removal of selected heavy metal ions such as copper(II), cobalt(II), zinc(II) and nickel(II) using Lewatit MonoPlus TP 220 were studied. The critical micellization of concentration in the system containing both heavy metal ions and the anionic surfactant was obtained (surface properties). The percentage removal...

Synthesis, Surface and Antimicrobial Activity of Piperidine-Based Sulfobetaines

A new method for the preparation of new heterocyclic amine surfactants based on sulfobetaines is proposed. Interfacial activities of the surfactants obtained in aqueous solution were studied by surface tension measurements. The critical micelle concentration, surface excess concentration, minimum area per surfactant molecule, and standard Gibbs energy of adsorption were...

Synthesis and Interfacial Activity of Novel Heterogemini Sulfobetaines in Aqueous Solution

Instrumental Analysis at the Faculty of Commodity Science of Poznan University of Economics. Her research includes synthesis and physicochemical properties of surfactants, especially gemini compounds. Katarzyna ... Staszak is a lecturer at the Institute of Chemical Technology and Engineering at the Poznan University of Technology in Poland. Her research is related mainly to the technique of separation, adsorption

Effect of Sodium Chloride on the Surface and Wetting Properties of Aqueous Solutions of Cocamidopropyl Betaine

the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Katarzyna Staszak is a lecturer

Removal of cobalt(II) and zinc(II) from sulphate solutions by means of extraction with sodium bis(2,4,4-trimethylpentyl)phosphinate (Na-Cyanex 272)

The removal of Co(II) and Zn(II) from model and real crude nickel sulphate (CNS) solutions by extraction with sodium bis(2,4,4-trimethylpentyl)phosphinate (Na-Cyanex 272) is studied and compared with the effect of using bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272). The proposed novel approach to manage both hazardous metal ions from CNS with sodium salt of Cyanex 272...