Sulfide-containing ion exchange fibres from the waste of the viscose rayon sector

Viscose rayon: recent developments and future prospects

“…For economic reasons it was necessary to recycle viscose waste from each stage of the viscose process with accompanying adverse effects on quality and product properties. Such waste viscose could be processed into sulfide containing fibers which do not need good physicomechanical properties to be used for ion-exchange applications (92).…”