Development of Deinking Agents for Flotation Systems.

Natural Surfactants for Flotation Deinking in Paper Recycling

The objective of this research was to evaluate new types of surfactants based on renewable materials (sugar and protein-based surfactants) for use in ink removal from recycled paper via flotation deinking. By applying green chemistry approaches we aim to minimize the environmental impact of deinking agents and also to open an avenue for a number of products that are to be generated from the uti...

IPST Technical Paper Series Number 867 Flotation Deinking of Old Newsprint Using Poly(Diallylmethylammonium Chloride) as a Single Deinking Agent

Flotation deinking of old newsprint (ONP) using polydiallyldimethylammonium chloride (polyDADMAC) as the only deinking agent was studied. The results demonstrate that polyDADMAC can neutralize dissolved anionics to form small particles. These small particles, together with ink, filler, and fines, strongly adsorbed onto air bubble surfaces and functioned as particle foaming agents. Therefore, no...

Studies of Surfactant Behaviour and Model Surfaces Relevant to Flotation Deinking

The objective of this work was to investigate the behaviour of some model surfactants used in the deinking process, namely, sodium oleate and two ethoxylated nonionic surfactants (C12E6 and C14E6) as well as to investigate the suitability of various model substrates for mimicking interactions in technical systems. The influence of the adsorption to the air – water interface has been measured by...

FINAL REPORT PROJECT TITLE: SURFACTANT SPRAY: A NOVEL TECHNOLOGY TO IMPROVE FLOTATION DEINKING PERFORMANCE Covering

Semi-Empirical Modelling and Management of Flotation Deinking Banks by Process Simulation