Non-anionic surfactants

Surfactants—Non-anionic surfactant e.g. polyoxyethylene derivative of sorbitol. 

Kozlowski et al. [20] presented the cyclodextrin polymers obtained by crosslinking P-CD with phtalic or 3-nitrophtalic anhydrides. It should be noted that molar mass fraction of the polymers over 100 kDa was obtained at higher temperatures, i.e. 65°C and 100°C. Preparation of polymers was carried out at concentration ratio P-CD NaH anhydrides equal to 1 7 7. For both polymers the similar fractions of molar masses were found. The high floatability of copper (II) obtained with the use of nonylphenol polyoxyethyl glycol ether as an non-anionic surfactant and P-CD polymers as complexation collector agent, show that the removal of metal ions decreases with increase of molecular mass of P-CD polymers linked by phtalic or 3-nitrophtalic anhydrides. For both derivatives of P-CD polymers with pH increase the... 

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